HomeMy WebLinkAboutbocc.ord.004.2025
AN ORDINANCE OF THE BOARD OF COUNTY COMMISSIONERS OF PITKIN COUNTY, COLORADO ADOPTING TEXT AMENDMENTS TO THE 2006 PITKIN COUNTY LAND USE CODE, TITLE 8 OF THE PITKIN COUNTY CODE ● REPEALING AND REENACTING SECTION 7-20-140, LIGHTING, TO
SUPPORT THE COUNTY’S GOALS OF PRESERVATION OF THE NIGHT SKY, PRESERVATION OF RURAL CHARACTER, MINIMIZATION OF OFF-SITE IMPACTS, AND ENERGY AND RESOURCE CONSERVATION. ● AMENDING SECTION 3-70-50(d), WEST OF MAROON PLANNING AREA (WOMP) OVERLAY ZONE DISTRICT, TO REMOVE REFERENCES TO
LIGHTING AND REFER BACK TO SECTION 7-20-140 FOR ALL LIGHTING REQUIREMENTS. Ordinance No. 004-2025
RECITALS
1. Pursuant to 30-35-301 C.R.S., the Board of County Commissioners (“BOCC”) of Pitkin
County, a home rule county, is authorized to make and publish ordinances for carrying into
effect or discharging the powers and duties conferred upon such counties by law and as
seems necessary.
2. Pursuant to Section 2.8.1 of the Home Rule Charter (“HRC”), the BOCC is authorized to
take official action by Ordinance for certain matters where action is prescribed pursuant to
the Colorado Revised Statutes as amended.
3. The Community Development Department (Applicant) has proposed Land Use Code (LUC) Text Amendments to repeal and reenact Section: 7-20-140: Lighting and to amend Section 3-70-50(d): West of Maroon Creek Planning Area (WOMP) Overlay Zone District.
4. The current lighting code was adopted in 1999 and no longer fits the needs of our
community. The proposal updates the lighting standards to meet the needs of the community today by incorporating advancements in lighting technology, and through the application of lighting industry standards and best practices.
5. The amendment supports autonomous solutions, and gives residents flexibility within limits
to implement creative and innovative solutions. At the same time the amendment language is objective with clearly defined standards to streamline the review process and resolution of lighting enforcement issues.
6. The amendment values protection of the natural environment, preservation of the night sky,
and protection of rural character.
Ordinance No. 004-2025 Page 2
7. The Pitkin County Planning and Zoning Commission considered the proposed Land Use Code text amendments at a regularly scheduled meeting on September 10, 2024, and recommended approval by a vote of 4-0, pursuant to Resolution No. PZ 008-2024.
8. The BOCC considered and approved by a vote of 5-0, the Ordinance on first reading at a
duly noticed public hearing on December 18th, 2024. The BOCC approved and adopted by a vote of 3-0, the Ordinance on second reading at a continued public meeting on January 22nd, 2025.
9. The BOCC finds that the proposed text amendments are consistent with LUC Sections 2-30-
40(i)(1) and 2-40-10(c)(1) and 2-40-10(e)(2), the Land Use Policies in the Code, and the Pitkin County Comprehensive Plan, as follows:
A. The amendment is consistent with the Master Plans for Brush Creek, Emma, Owl Creek,
Upper Snowmass and The Valleys of Capitol Creek and Lower Snowmass Creek, which
all “encourage the County to consider amendments to the lighting regulations to further minimize the impacts of outdoor lighting as new information and technology is made available.” B. The amendment supports the County’s policy to implement the right to see the night sky
without the interference of unnecessary artificial light from growth, urbanization and
highway development as stated in the LUC Section 1-60-180(k) The Ecological Bill of Rights. C. The amendment supports the goals of LUC Sections 1-60-70: Rural Development and 7-20-120: Scenic View Protection. To preserve the natural, rural scenery and natural
landmarks of the County by minimizing the visible impacts of development.
D. The proposed amendment to Section 7-20-140 and Section 3-70-50(d), complies with the applicable provisions of the Land Use Code and the applicable Land Use Policies in Section 1-60.
10. The BOCC finds that the lighting standards of this Section shall be applicable to all exterior
lighting within Pitkin County.
A. As of March 1st, 2025, light trespass and curfew regulations are in effect. B. As of March 1st, 2025, building permit applications that include changes to or new exterior lighting shall bring the entire structure into compliance with the provisions of
this Section.
C. Existing exterior light fixtures that do not violate the light trespass and curfew regulations shall be considered legal non-conforming for five (5) years from March 1st, 2025. D. Within five (5) years of March 1st, 2025, all exterior light fixtures that do not conform to the requirements of this Section shall be replaced or retrofitted to comply with the
provisions of this Section.
Ordinance No. 004-2025 Page 3
11. The BOCC finds that adoption of this Ordinance is in the best interest of the citizens of
Pitkin County.
NOW, THEREFORE, BE IT ORDAINED by the Board of County Commissioners of Pitkin
County, Colorado that it hereby adopts the following text amendments to the 2006 Pitkin County
Land Use Code, Title 8 of the Pitkin County Code, and authorizes the Chair or the Chair’s
designee to sign the Ordinance and upon the satisfaction of the County Attorney as to form,
execute any other associated documents necessary to complete this matter.
1. Repeal and reenact LUC Section 7-20-140 attached hereto as Exhibit A.
2. Amend LUC Section 3-70-50(d) attached hereto as Exhibit B.
Ordinance No. 004-2025 Page 4
NOTICE OF PUBLIC HEARING AND TITLE AND SHORT SUMMARY OF THE
ORDINANCE PUBLISHED IN THE ASPEN DAILY NEWS ON THE 28TH DAY OF
NOVEMBER, 2024.
NOTICE OF PUBLIC HEARING AND THE FULL TEXT OF THE ORDINANCE POSTED
ON THE OFFICIAL PITKIN COUNTY WEBSITE (www.pitkincounty.com ) ON THE 28TH
DAY OF NOVEMBER, 2024.
INTRODUCED ON FIRST READING AT A PUBLIC HEARING ON THE 18TH DAY OF
DECEMBER, 2024.
APPROVED AND ADOPTED ON SECOND READING AT A CONTINUED PUBLIC
HEARING ON THE 22ND DAY OF JANUARY, 2025.
PUBLISHED BY TITLE AND SHORT SUMMARY, AFTER ADOPTION, IN THE ASPEN
DAILY NEWS ON THE 30TH DAY OF JANUARY, 2025.
POSTED BY TITLE AND SHORT SUMMARY ON THE OFFICIAL PITKIN COUNTY
WEBSITE (www.pitkincounty.com) ON THE 30TH DAY OF JANUARY, 2025.
ATTEST: BOARD OF COUNTY COMMISSIONERS
OF PITKIN COUNTY, COLORADO _______________________ __________________________
Sam Engen, Kelly McNicholas Kury,
Deputy Clerk Chair Date: _________________________
APPROVED AS TO FORM: APPROVED AS TO CONTENT:
________________________ ____________________________
Richard Neiley, III Suzanne Wolff,
County Attorney Community Development Director
Exhibit A – LUC Section 7-20-140
Exhibit B – LUC Section 3-70-50(d)
Jan-31-2025
7-20-140 LIGHTING
(A)INTENT
(1)To give flexibility within limits and support the goals of Land Use Code (LUC) Section 1-60-180(k): the
Ecological Bill of Rights, specifically the right to see the night sky without the interference of unnecessary
artificial light from growth, urbanization, and highway development.
(a)Permit the use of exterior lighting that does not exceed the recommended levels specified in the
Illuminating Engineering Society (IES) recommended practices for night-time safety, utility,
security, productivity, enjoyment, and commerce.
(b)Minimize adverse offsite impacts of lighting such as light trespass, and obtrusive light. Curtail
light pollution, reduce sky glow and improve the nighttime environment for astronomy, migrating
birds and other wildlife.
(2)To give flexibility within limits and support the goals of LUC Sections 1-60-70: Rural Development and
7-20-120: Scenic View Protection. To preserve the natural, rural scenery and natural landmarks of the
County by minimizing the visible impacts of development.
(3)To conserve energy and resources to the greatest extent possible. All exterior and interior light fixtures
shall have a high efficacy as defined in the currently adopted International Energy Conservation Code
(IECC).
(4)These lighting standards acknowledge some exterior lighting is appropriate and necessary for the safety
and enjoyment of people at night. What to light, why, and when, is a cornerstone of these lighting
standards. Because the effects of light pollution can persist as far as 120 miles from the source, local
control and regional coordination is encouraged for dark sky preservation and ecological protection. The
following principles of responsible lighting design have guided the development of these standards:
(a)Useful – Lighting shall have an intended purpose.
(b)Targeted – Lighting shall be directed only where it is needed.
(c)Low Light Levels – Lighting shall be no brighter than required for the task.
(d)Controlled – Lighting shall only be used when it is necessary.
(e)Spectrum – Harmful short wavelengths shall be limited (blue and violet).
(B)GENERAL REQUIREMENTS FOR ALL EXTERIOR LIGHTING
(1)Conformance with All Applicable Codes:
(a)All exterior lighting shall be installed in conformance with the provisions of this Section and the
currently adopted National Electric Code (NEC), International Energy Conservation Code (IECC),
International Residential Code (IRC) and International Building Code (IBC).
(2)Applicability:
(a)The lighting standards of this Section shall be applicable to all exterior lighting within Pitkin
County.
(3)Exemptions: All exterior lighting shall follow the provisions in this Code; however, any special
requirements for lighting listed below shall take precedence.
(a)Lighting required by federal and state laws or regulations.
Exhibit A
(b) Lighting required by Pitkin County for public right-of-ways, monuments, and statuary.
(c) Temporary lighting if approved by a Special Event Permit.
(d) Underwater lighting in swimming pools and spas.
(e) Lighting that is only used under emergency conditions.
(4) All exterior lighting shall be extinguished when sufficient daylight is available.
(5) Nighttime Lighting Reduction Requirements: A curfew shall be observed between the hours of 10 pm and
6 am. All exterior lighting shall be extinguished during this time.
(a) Exemptions: Exterior lighting reductions are not required for any of the following:
i. Photocell with timer set to one hour max, or motion sensor set to five (5) minutes.
ii. For non-residential uses where normal operating hours begin or end within the hours of
curfew, the curfew applies from one hour after closing to one hour before opening.
iii. Egress lighting for steps, stairs, walkways, and building entrances of non-residential
structures as required in the currently adopted IBC.
iv. Street lighting as permitted by subsection (B)(12) below.
v. Multi-family parking lot lighting as permitted by subsection (D)(2)(a) below.
(6) Prohibited Lighting
(a) Lighting that’s intended purpose is to illuminate a building facade or landscape.
(b) Lighting that illuminates the Roaring Fork, Frying Pan, or Crystal Rivers, or their tributaries.
(c) Lighting that may be mistaken for warning, emergency, or traffic signals.
(d) Lighting of construction sites is prohibited except during approved construction hours (7am – 7pm
Monday through Saturday) when sufficient daylight is not available and work is actively
occurring.
(e) Colored lights (for example RGB LEDs).
(f) Blinking, flashing, moving, revolving, scintillating, flickering, and changing intensity lights.
(7) Correlated Color Temperature (CCT) is a gauge of how yellow or blue the color of light emitted appears.
All lighting shall have a nominal CCT no greater than 3000 Kelvin.
(8) Fully Shielded: All exterior light fixtures shall be fully shielded except as permitted in Table 1.
(a) Fully shielded is defined as a fixture constructed and installed in such a manner that all light
emitted by the fixture, either directly from the lamp, light source or a diffusing element, or
indirectly by reflection or refraction from any part of the fixture, is projected below the horizontal
plane through the fixture’s lowest light-emitting part. Translucent fixtures are not considered fully
shielded.
(b) Examples of fully shielded fixtures:
(c) Examples of non-shielded fixtures:
(9) Light Trespass Limitations
(a) Exterior and interior point light sources shall not be visible from the property line during hours of
curfew. A point light source is defined as a non-diffused single light source that is identifiable
from one location.
(b) The maximum vertical illuminance level at the lot line, measured at approximately five feet (5’-
0”) above finished grade, shall be no more than 0.2 footcandles (fc) caused by exterior and/or
interior light fixtures located on the site. To measure vertical light trespass, the light meter shall be
aimed perpendicular to the property line, pointed towards the light source. Multiple readings shall
be taken to ensure compliance around the property line. If the lot line abuts a public street, the
illuminance values shall be measured at the centerline of the public street. These levels shall be
used for enforcement, should concerns of obtrusive lighting or question of compliance arise.
(10) American flags: When possible, lower and remove flags from sunset to sunrise so illumination is not
needed. Only illumination of the American flag is allowed, other flags are not permitted to be lit. To
preserve the night sky a top of pole downward directed light is required.
(11) Seasonal Lighting, or string lighting, meant for temporary use and displayed on buildings or landscaping.
(a) Residential: Shall only be permitted between November 15th and January 30th.
(b) Non-Residential and Redstone Boulevard: Shall only be permitted between November 15th and
March 1st.
(c) Shall comply with subsections (B)(4, 5, 6b, 6c, and 9) above.
(12) Street lights may be permitted on local streets, as defined in LUC Chapter 11, at the discretion of the
Community Development Director in areas with medium or high pedestrian traffic. Medium pedestrian
traffic is defined as 11-99 pedestrians during the highest nightly average one-hour volume period. High
pedestrian activity areas have more than 100 pedestrians during nightly average one-hour volume (IES,
2022). Recommended Practice: Lighting Roadway and Parking Facilities (RP-8-22). A traffic engineer or
other accredited professional shall submit a Pedestrian Count Survey, as defined by the American
Planning Association (APA).
If permitted, all light fixtures shall meet the following requirements:
(a) Shall comply with LUC Section 7-20-140(B) General Requirements for All Exterior Lighting
(b) All fixtures shall be light emitting diodes (LEDs)
(c) Fixture distribution shall be equal or less than the BUG rating of B1-U1-G1 in LZ2 and B0-U1-G0
in LZ1. Street lighting is not permitted in LZ0.
(d) Fixtures for street lighting shall be mounted so that the bottom of the fixture is no higher than
twenty feet (20’-0”).
(e) Initial lumen output shall be no more than 4,000 lumens.
(f) Fixture spacing shall be no less than one hundred feet (100’-0”).
(g) All fixtures shall have a field adjustable dimming system to allow for onsite dimming once
installed.
(h) All fixtures shall have a Type II distribution.
(i) All fixtures shall have standard house-side shielding options. Front-side shielding may also be
required to control light trespass across the street. Front-side shields may be custom, but
manufacturer standard shielding is preferred.
(C) LIGHTING ZONES - Ambient light is defined as general lighting of an area.
(1) Lighting Zone Zero (LZ0): No ambient light
(a) LZ0 includes areas zoned Rural and Remote. The purpose of the rural and remote zone district is
to conserve and protect the natural environment and its resources, while allowing for limited
recreational uses and limited residential development.
(2) Lighting Zone One (LZ1): Low ambient light
(a) LZ1 encompasses all areas not zoned as Rural and Remote or within the West of Maroon Creek
Master Plan (WOMP) Overlay Zone District. These are areas of less dense residential and non-
residential uses where lighting may be used for safety and convenience but may not need to be
uniform or continuous.
(3) Lighting Zone Two (LZ2): Moderate ambient lighting
(a) LZ2 includes areas within the WOMP Overlay Zone District, beginning with the Aspen/Pitkin
Airport and the Aspen Airport Business Center (AABC) and continuing up the Highway 82
corridor to the City of Aspen limits. This area consists of dense residential, institutional, and
commercial uses and is subject to a certain amount of existing ambient lighting and warrants a
greater allowance for exterior lighting.
(4) Lighting Zone Map:
(D) REQUIREMENTS FOR RESIDENTIAL EXTERIOR LIGHTING
(1) For residential properties all exterior light fixtures shall comply with the initial lumen output in Table 1.
Table 1. Maximum Allowed Initial Lumens* Per Fixture.
Lighting Application LZ0 LZ1 + LZ2
Type 1. Up to two (2) unshielded fixtures per dwelling
unit. Not allowed 800 lumens
Type 2. Fully shielded fixtures. 630 lumens 1,260 lumens
Type 3. **Low-voltage point source hardscape light
fixtures
500 lumens 500 lumens
Type 4. ***Linear Lighting Not allowed 100 lumens/ linear
foot
* Fixture lumens equal either the total initial lumens or lamp lumens multiplied by the number of
lamps in the fixture.
**Low voltage lighting uses less than 50V and requires a transformer device.
*** Linear lighting shall be fully shielded so that the light source is not visible.
(2) In addition to the maximum initial lumen output established in Table 1, above, a total lumen allowance for
exterior light fixtures shall apply to each structure. This includes all building mounted fixtures and site
lighting. The lumen allowance shall be based on the approved above grade floor area at a rate of 3.5
lumens/square foot. Single family residences are limited to a maximum of 35,000 lumens.
(a) Exemptions: Parking lot lighting may be permitted for multifamily residential developments
containing 8 or more units at the discretion of the Community Development Director.
i. Whenever possible, parking lot lighting shall be controlled by a motion sensor set to a
maximum of five (5) minutes.
ii. The preferred option is for low-level "bollard" fixtures that have a maximum of four feet
(4’-0”) mounting height. If pole-mounted fixtures are desired, twelve feet (12’-0”) is the
maximum mounting height.
iii. Pole-mounted fixtures have a maximum limit of 3,000 lumens and a BUG rating of B1-
U1-G1 or less and shall comply with the parking space or hardscape area methods
outlined in Tables 3 and 4 in subsection (E)(2)(a) below.
(3) Driveway, sport court, and tree mounted lighting shall be compliant with the allowed initial lumens per
fixture in Table 1. Mounting height is the vertical distance between the finish grade and the center of the
apparent light source of the fixture. The light fixtures shall be aimed no more than 30 degrees from nadir.
Nadir is defined as the invisible vertical line projecting downward to the ground from the center of the
lens of the fixture.
(a) Driveway lighting shall be controlled by a motion sensor set to a maximum of five (5) minutes.
The preferred option is for low-level "bollard" fixtures that have a maximum of four feet (4’-0”)
mounting height. If pole-mounted fixtures are desired, twelve feet (12’-0”) is the maximum
mounting height.
(b) Sports court lighting shall be controlled by a timer and turn off automatically after one hour. Pole
mounting height shall not exceed sixteen feet (16’-0”) and correct aiming, shielding, and/or
internal louvers is required to prevent light trespass and/or glare.
(c) Tree mounted lighting is permitted when used to illuminate outdoor patios, walkways, autocourts,
driveways, etc. Tree mounted lighting shall not exceed twelve feet (12’-0”) above grade and shall
not be used for the sole purpose of highlighting vegetation.
(4) One address monument per property is permitted to be lit by one shielded or unshielded fixture compliant
with Table 1. An internally illuminated channel shall be considered shielded if the face and sides are
constructed of an opaque material.
(E) REQUIREMENTS FOR NON-RESIDENTIAL EXTERIOR LIGHTING –
(1) Limits to offsite impacts
(a) All fixtures shall be rated and installed according to Table 2, which outlines maximum BUG
(Backlight-Uplight-Glare) Ratings (per IES TM-15) for all individual fixtures installed.
BUG (Backlight, Uplight, Glare) Rating – The quantity of light per the most recently adopted IES
TM-15 within various beam angles.
Backlight – the percent lamp lumens (non-LED fixtures) or the fixture initial lumens
(LED fixtures) distributed behind a fixture between zero degrees vertical (nadir) and 90
degrees vertical.
Uplight – the percent lamp lumens (non-LED fixtures) or the fixture initial lumens (LED
fixtures) distributed above a fixture between 90 and 180 degrees vertical.
Glare – the percent lamp lumens (non-LED fixtures) or the fixture initial lumens
distributed 60 and 90 degrees vertical.
(b) Property lines that abut public walkways, bikeways, plazas, and parking lots, the property line
may be five feet (5’-0”) beyond the actual property line for the purpose of determining compliance
with this section. For property lines that abut public roadways, the property line may be the
centerline of the public roadway for the purpose of determining compliance with this section.
NOTE: This adjustment is relative to Table 2 only and shall not be used to increase the hardscape
area of the site.
Table 2. Maximum Allowable Backlight, Uplight, Glare Ratings.
Mounting Condition Backlight Uplight Glare
Greater than 2 mounting heights from the
property line B3 U1 G2
1 to less than 2 mounting heights from the
property line B2 U1 G1
0.5 to less than 1 mounting heights from the
property line B1 U1 G0
Less than 0.5 mounting heights from the
property line B0 U1 G0
(2) Site lumen limit
(a) The total installed initial light fixture lumens of all exterior lighting shall not exceed the total site
lumen limit. The total site lumen limit shall be determined using either the Parking Space Method
(Table 3) or the Hardscape Area Method (Table 4). Only one method shall be used per site. For
sites with existing lighting, existing lighting shall be included in the calculation of total installed
lumens.
Table 3. Allowed Total Initial Lumens per Parking Space Method.
May only be applied to properties up to ten parking spaces (including handicapped
accessible spaces).
LZ0 LZ1 LZ2
0 lumens per space 490 lumens per space* 630 lumens per space*
Table 4. Allowed Total Initial Lumens per Hardscape Area Method.
May be used for any project.
LZ0 LZ1 LZ2
Base Allowance 0 lumens per
square foot of
hardscape
1.25 lumens per
square foot of
hardscape*
2.5 lumens per
square foot of
hardscape*
Additional allowances for sales and service facilities.
Drive Up Windows
In order to use this allowance, fixtures
must be within 20 feet horizontal distance
of the center of the window.
0 2,000 lumens per
drive-up window
2,000 lumens per
drive-up window
Automobile Service Station Canopy
This allowance is lumens per installed fuel
pump. Each side of a two-sided pump
qualifies for an allowance.**
0 4,000 lumens per
pump
8,000 lumens per
pump
* All non-residential structures are allowed the minimum lighting required in the currently adopted IBC, specifically
Sections 1008.2.1 and 1008.2.3, even if the Parking Space or Hardscape Area Method calculation results in a site
lumen limit less than that.
** Light fixtures mounted on Automobile Service Station canopies and other canopies shall be recessed so that the
lens cover is flush with the bottom surface of the canopy or shielded by the fixture or the edge of the canopy. Lights
shall not be mounted on the top or sides of the canopy. Signs that are compliant with sign regulations may be placed
on these surfaces.
(3) Lighting Control Requirements
(a) Controls shall be provided that automatically extinguish all exterior lighting when sufficient
daylight is available using a control device or system such as a photoelectric switch, astronomic
time switch or equivalent functions from a programmable lighting controller, building automation
system or lighting energy management system, all with battery or similar backup power or device.
i. Exemption: Automatic lighting controls are not required for egress lighting required by
the Building Code for steps, stairs, walkways, and building entrance.
(4) Pole mounted fixtures shall be mounted so that the bottom of the fixture is no higher than sixteen feet
(16’-0”).
(5) The following shall apply to sign illumination:
(a) Internally-illuminated signs are prohibited.
(b) Sign lighting shall be directed downwards and shielded from neighboring property and the vision
of passing motorists.
(c) Initial lumen output shall not exceed 200 lumens per square foot of signage.
(F) AGRICULTURAL BUILDINGS
(1) Agricultural buildings compliant with LUC Section 5-20-70(j) do not have a total lumen allowance. These
structures are permitted to have up to one light per entrance. It shall be fully shielded, directed downwards
and have an initial lumen output equal to or less than 1,260 lumens.
(G) SPECIAL DISTRICTS: HISTORIC LIGHTING
(1) Historic Applications
(a) For the preservation of the integrity of historic structures the County may relax requirements such
as shielding, uplight, and light trespass upon request and subsequent approval from the Historic
Preservation Officer (HPO) or Redstone Historic Preservation Commission (RHPC). All lighting
related to historic properties or located in a historic district shall be otherwise consistent with the
lighting standards laid out in LUC Section 7-20-140(B, D, E, and F) above, as applicable. For
properties within the Redstone Historic District please refer to the Redstone Historic Preservation
Committee Design Guidelines for additional information.
(2) Review Process
(a) For historically designated structures, the HPO shall review and approve the proposed lighting to
determine appropriateness. The HPO may vary lighting types as appropriate to the building but
may not exceed the total lumen allowance for the structure.
(b) If the property is within the Redstone Historic District Overlay the lighting plan shall be reviewed
and approved by the RHPC prior to applying for permits.
(3) Design Standards
(a) Light spill from historic properties shall be minimized to the greatest extent practical and the
design shall be compatible with a property’s or historic district’s character, setting, and context.
(b) If new exterior light fixtures are added, the design shall be based on historic site or building
lighting patterns if known. If unknown, ensure that new lighting features are of a simple design
that does not compete with the historic character of the property.
(c) Limit the use of exterior lighting to entry lighting as required by the Building Code. Minimal site
lighting may be appropriate for parking areas, walkways and patios.
(H) SPECIAL DISTRICTS: PITKIN COUNTY OPEN SPACE AND TRAILS (OST)
(1) All lighting shall comply with LUC Section 7-20-140(B, D, E, and F) above, as applicable. Additionally
all exterior lighting shall be reviewed and approved by the Open Space and Trails Board prior to applying
for permits.
(a) Open Space: No exterior lighting is permitted within properties classified as nature preserves,
riverine, or backcountry. Minimal exterior lighting as required for safety is permitted on properties
classified as open space for facilities associated with agriculture, residential, and administrative
uses.
(b) Trailheads and Greenways: Minimal exterior lighting as required for safety and wayfinding is
permitted for trail amenities on properties classified as trailheads or greenways with medium or
high pedestrian traffic, as defined by OST trail use counts.
(c) Parks: Minimal exterior lighting as required for safety and wayfinding is permitted for park
amenities and terrain. Elements such as gazebos, restroom entrances, and stairs may be
illuminated. Lighting for nighttime recreation amenities shall not exceed the minimum levels
needed for recreation and enjoyment of the space, and shall only be illuminated during active
nighttime use. Lighting adjacent to historic resources shall be compatible with the surrounding
historic character and compliant with LUC Section 7-20-140(G) above.
(I) SPECIAL DISTRICTS: ASPEN/PITKIN AIRPORT
(1) Lighting associated with the airside facilities at the Airport (runway/taxiway system, deice pad, aircraft
parking areas and other facilities located inside the security fence) is regulated by the Federal Aviation
Administration (FAA) for safety and shall be exempt from these standards. All other exterior lighting shall
comply with LUC Section 7-20-140(B and E) above.
(J) SPECIAL DISTRICTS: SKI-RECREATION ZONE DISTRICT
(1) All lighting shall comply with LUC Section 7-20-140(B, D, and E) above, as applicable.
(a) Ski area operations occur around the clock in preparation for and throughout the ski season.
Minimal exterior lighting as required for safety and wayfinding is permitted for general ski area
nighttime operations, including but not limited to snow cat grooming, snowmaking, track vehicle
maintenance, and work in and around ski area facilities. Exterior lighting shall only be illuminated
during active nighttime use.
Exhibit B
3-70-50 West of Maroon Planning Area (WOMP) Overlay Zone District
(d) Review Standards:
The following applies to the entire West of Maroon Creek Planning Area:
Design:
(1) The density, size and scale of development shall be designed to complement rather than
obstruct the natural environment as seen from Highway 82.
(2) Ridgelines shall be unobstructed.
(3) The appropriate design of development shall minimize the need for “manmade” landforms
used as tools for screening development or in order to protect a view or designated view
plane (see Section 2 of WOMP). If proposed, these landforms shall be modest and discreet
and shall not be egregious or out of character. Man-made landforms as part of a structure
(such as a buried or partially buried parking garage) on the Pitkin County Airport are
excepted from this standard.
(4) Where existing or natural topography allows, structures shall be lowered in the ground to
minimize height as seen from Highway 82 and Owl Creek Road and pedestrian trails.
(5) Maintain a 200 foot setback throughout the corridor except as has been explicitly varied
by previous land use approvals. For example, the 2004 Pitkin County Airport Master Plan
allows for a 100 foot setback from Highway 82.
(6) All utilities shall be buried underground.
Landscaping:
(1) Only native species shall be allowed within the WOMP area as referenced in the Colorado
Native Plant Society’s “Suggested Native Plants for Gardening and Landscape Use”.
(2) Planting arrangements shall mirror natural dispersion of plant groupings in the
surrounding natural landscape.
(3) When landscaping between Activity Nodes is altered, it shall be subject to review; Green
areas between nodes are critical for maintaining the scenic objectives of these guidelines and
the WOMP in general.
(4) Disturbance of native vegetation shall be minimized when developing sites during
construction.
(5) All riparian corridors (including ditches,) and native vegetation and natural plant
groupings contained within those corridors, shall remain undisturbed. For Airport-specific
guidelines, see the “Pitkin County Airport Activity Node” Landscaping section. Note that this
standard is not intended to preclude normal and appropriate ditch maintenance.
(6) Native vegetation shall be used to break up the visual impact of continuous impervious
surfaces .such as parking areas.
(7) No replacement trees shall mature to a height that would obstruct identified views and
view planes (see Section 2 of the WOMP). The purpose of this provision is to preserve views
for the long term; however, to maintain variation and balance in a landscape, up-to one
quarter of the trees or shrubs installed per property may be of a native variety that matures at
a height that may obstruct views.
(8) Drip and low flow irrigation shall be utilized in order to conserve water usage.
Lighting:
(1) All exterior lighting shall comply with Land Use Code Section 7-20-140 .
(1) Exterior lighting shall be minimized. There shall be a balance between the safety and
security needs for lighting and the desire to preserve the night sky.
(2) All outdoor lighting for new development shall be full cutoff fixtures installed in a fixed
down direction and 100% shielded. This will ensure that light trespass and glare have a
negligible impact on surrounding property.
(3) No light source (bulb) from an outdoor light fixture of a new development shall be visible
beyond the property line. Shielding is required to reduce glare so that neither the light source
nor its image from a reflective surface shall be directly visible from any place along the
designated activity or building envelope. If no building envelope or activity envelope has
been designated the property line shall be used. Shielding the source (bulb) of light shall
consist of a metal housing (cap) which directs the light downward or a covering with frosted
glass or colored glass with a dense enough consistency to hide the light bulb. The complete
shielding with a metal cap is the preferred method.
(4) In order to minimize light trespass on abutting property, illumination shall be measured
with a light meter using a footcandle light measurement scale. The light shall be measured at:
(a) The edge of the activity or building envelope at 4 feet measured vertically from grade
and shall not exceed 0.1 foot-candles of light.
(b) Directly under the light source at grade and shall not exceed 2.5 foot -candles of light.
(c) Between outdoor light sources and shall not exceed 0.5 foot-candles of light.
(d) On the property line of a subject parcel and shall not exceed 0.1 foot-candles,
measured at four feet (4’) above grade. If no activity or building envelope has been
established the property line shall be used.
(5) The maximum height of a freestanding outdoor light fixture for new multi-family
residential development and nonresidential development shall be twelve feet (12’). This
includes fixtures for parking areas, which shall be placed far enough apart that the
illumination between fixtures is 0.5 foot-candles.
(6) All new outdoor lighting fixtures shall be energy efficient. Energy efficient lights include
all high intensity discharge (HID) lamps; high pressure sodium and low pressure sodium.
Metal Halide and Mercury vapor bulbs are not allowed.
(7) Outdoor light fixtures used to illuminate flags shall use a very narrow cone of light for the
purpose of confining the light to the flag and minimize light trespass and glare.
(8) Lighting controls that automatically extinguish all outdoor lighting when sufficient
daylight is available using a control device or system such as a photoelectric switch,
astronomical time switch or equivalent functions from a programmable lighting controller,
building automation system or lighting energy management system, shall be utilized
whenever possible.
(9) The outdoor light fixtures listed below shall be prohibited. Existing light fixtures legally
permitted or authorized prior to adoption hereof may be maintained:
(a) Uplighting/backlit canopies.
(b) Neon tubing or band lighting along building structures as articulation.
(c) Flashing lights.
(d) Illumination of entire building or illumination of building facades.
(e) Floodlighting, uplighting.
(f) Any light that imitates or causes visual interference with a traffic signal or other
necessary safety or emergency light.
(g) Driveway lighting.
(h) Mercury vapor lights and metal halide lights.
(10) Walkway and path lighting shall not exceed two (2) feet in height, shall be fixed in a
down directed direction, and shall be less than 0.5 footcandles between each fixture and less
than 0.1 foot-candles six (6) feet from the fixture, at the edge of the activity envelope and/or
the property line.
(Note: For lighting standards applicable to Pitkin County Airport, see the “Pitkin County
Airport Activity Node” Lighting section.)
Signage:
(1) Prohibit Canopy, Projecting, and Roof signs. An identification sign shall only be a free
standing or a wall sign.
(2) Replacement or new signs shall be limited to one sign per business; either a wall sign or a
free-standing sign, but not both (except as may be modified under the Airport Activity
Node standards.)
(3) On the west side of Highway 82, allow one identification sign per primary entrance,
except as may be modified under specific guidelines outlined for the Airport Activity
Node.
(a) Maintain a setback of 10’ from all property boundaries.
(b) Sign placement shall not impede traffic or obstruct views.
(c) No off-site signs shall be permitted unless approved by the County.
(4) Signs at intersections shall only indicate the road name and not uses located further along
that road. For example, Stage Rd., Harmony Rd., Tiehack Rd.
(5) Only identification signs shall be lit. Lighting shall be compliant with Section 7-20-140
of the Pitkin County Land Use Code.
(6) Ranch gates shall not be used as sign structures or located at any entrance drive or
roadway along the Highway 82 Corridor within the WOMP area. Ranch gates are
prohibited at entrances/exits onto Highway 82.
(7) Address numbers shall comply with Pitkin County Board of County Commissioner
Ordinance 31-2012 pertaining to addressing.
(8) Agricultural stands shall be allowed one sign no greater than 6 square feet in addition to
any other signs approved for the site.
(9) Two sided, back-to-back free standing identification signs are required.
The following standards shall only apply to the Airport Business Center (ABC) Activity
Node (Except where noted specifically for application to the ABC Subdivision, the following
standards apply to all properties within the Activity Node):
Design:
(1) The following height limits shall apply:
(a) No structures within the ABC Subdivision shall exceed twenty eight (28) feet to
the midpoint and thirty (30) feet to the peak of the roof; or twenty eight (28) feet
for a flat roof.
(i) i. ii. Within two hundred (200) feet of the Highway 82 Right of Way,
structures within the ABC Subdivision are limited to fifteen (15) feet to
the peak of the roof, or to the high point of a flat roof, as measured from
existing grade.
(ii) Within a perimeter of thirty (30) feet of the boundary of the ABC
Subdivision, structures shall not exceed fifteen (15) feet to the peak of
the roof, or to the high point of a flat roof, as measured from existing
grade.
(b) Outside of the ABC Subdivision and within the two hundred (200) foot setback
from the Highway 82 Right of Way, all structures are limited to fifteen (15) feet
to the peak of the roof, or to the high point of a flat roof, as measured from
existing grade; buildings shall incorporate design features that make the structure
appear as one story as seen from the Highway 82 Corridor and from pedestrian
paths.
(c) Outside of the ABC Subdivision and outside of the two hundred (200) foot
setback from the Highway 82 Right of Way, structures are limited to heights
allowed in the underlying zone district.
(2) Development within 200 feet of the Highway 82 Right of Way shall be lowered in the
ground whenever possible.
(3) Articulated rooflines shall be utilized. A roofline shall not appear as a continuous linear
plane.
Landscaping:
(1) Landscaping shall be native mixed species with varying heights and setbacks of plantings
in order to soften and complement the facades of buildings.
(2) Along the 100 Road in the ABC subdivision and along the frontage roads within the
WOMP area, native vegetation as referenced in the Colorado Native Plant Society’s
“Suggested Native Plants for Gardening and Landscape Use” shall be used to break up
the visual impact of continuous impervious surfaces such as parking areas.
(3) Plantings along Highway 82 shall not create or contribute to a vegetative tunnel effect.
Signage:
(1) Only wall signs shall be allowed along the frontage road and the 100 Road within the
ABC.
(2) No signs shall be located between Highway 82 and the Frontage Road and/or the 100
Road except:
(a) Those related to the rights-of-way.
(b) One free standing Identification sign per ABC entrance.
(3) One, back-to-back, two sided free-standing identification sign per ABC entrance is
required.
(a) Sign shall be “anchored” on the ground with a base and/or landscaped area.
(b) Base and landscaping will be included as part of total sign structure height.
(c) Downward lighting is required.
The following standards shall only apply to the Pitkin County Airport Activity Node:
Design:
(1) The appearance of any new development in the terminal area, as viewed from Highway
82 and Owl Creek Road shall be similar to the current facilities which include relatively
low structures that are complemented by landscaping.
(2) Development on the east and west side of the Pitkin County Airport runway shall include
low structures which appear to be one story in height, while serving their intended
purpose.
(3) The rooflines and mass of structures shall be articulated and shall not appear as
continuous (as viewed from Highway 82 and Owl Creek Road), unless such
configuration is a necessary aspect of their intended purpose.
(4) Use of architectural techniques such as partially buried, earth-bermed and/or earth
covered roof and structures such as the Pitkin County Airport Operations Center (AOC),
are a desirable means of limiting visual impacts.
(5) While serving their intended purpose, structures, buildings and landscaping on the Pitkin
County Airport shall be designed so as not to obstruct views of Mt. Daly and/or the
Buttermilk Ski Area Mountain as viewed from Highway 82.
(6) To the extent possible, undeveloped areas immediately beyond the ends of the Pitkin
County Airport runway shall remain undeveloped as a visual break between Buttermilk to
the south and shale bluffs to the north.
(7) Maintain existing setback of 100 feet from property line along Highway 82.
(8) Ensure that development, including structures, landforms and landscaping does not create
a tunnel effect along Highway 82 or Owl Creek Road. If proposed, these landforms shall
be “modest” and “discreet” and shall not be egregious or out of character.
Landscape:
(1) Maintain weed control.
(2) Maintain the south and north ends of the runway as unobstructed areas vacant of tall
plantings and containing native grasses and shrubs.
(3) On the west side of the Pitkin County Airport near the Airport Operations Center (AOC),
maintain native plantings that mimic the surrounding Owl Creek corridor landscape
vegetation, which could include cottonwoods and aspens behind the development
contemplated to the north of the existing AOC structure.
(4) Maintain the Owl Creek riparian corridor with native, natural vegetation where consistent
with the Aspen-Pitkin Airport Wildlife Hazard Management Plan.
Lighting:
(1) Lighting associated with the airside facilities at the Airport (runway/taxiway system, deice
pad, aircraft parking areas and other facilities located inside the security fence) is regulated
by the Federal Aviation Administration (FAA) for safety and shall be exempt from these
standards. Wherever the terms “outdoor fixtures” and “exterior lighting” are used in this
section, it shall be understood to exclude fixtures or lighting associated with airside facilities.
All other exterior lighting at the Airport shall be designed to achieve a balance between the
safety and security needs of airport users and the desire to preserve the night sky.
(2) Outdoor fixtures other than those associated with the runway/taxiway system and deice
pad shall be installed in a fixed down direction, shall be full cutoff fixtures and 100%
shielded. Shielding shall be required to reduce glare so that neither the light source nor its
image from the reflective surface shall be directly visible from beyond the property line.
(3) The maximum height of a freestanding outdoor light fixture shall be twelve feet (12’).
This includes fixtures for parking areas, which shall be spaced so as to achieve an average
illumination no greater than 0.5 foot-candles.
(4) All new outdoor lighting fixtures shall be energy efficient. Energy efficient lights include
all high intensity discharge (HID) lamps (high pressure sodium and low pressure sodium) and
any other fixtures of equal or greater efficiency subject to approval by the Community
Development Department.
(5) Outdoor light fixtures used to illuminate flags shall use a very narrow cone of light for the
purpose of confining the light to the object of interest and minimize light trespass and glare.
(6) Lighting controls that automatically extinguish all outdoor lighting when sufficient
daylight is available using a control device or system such as a photoelectric switch,
astronomical time switch or equivalent functions from a programmable lighting controller,
building automation system or lighting energy management system, shall be utilized
whenever possible.
(7) The outdoor light fixtures listed below shall be prohibited. Existing light fixtures legally
permitted or authorized prior to adoption hereof may be maintained.
(a) Uplighting/backlit canopies.
(b) Neon tubing or band lighting along building structures as articulation.
(c) Flashing lights.
(d) Illumination of entire building or illumination of building facades.
(e) Floodlighting, up lighting.
(f) Any light that imitates or causes visual interference with a traffic signal or other
necessary safety or emergency light.
(g) Walkway and path lighting must not exceed three (3) feet in height (as measured from
the light source to existing grade) and must be down-directed and shielded. LED lighting
is required.
Signage:
(1) Signage at the Pitkin County Airport shall be consistent with the Pitkin County Airport
Master Plan sign plan for exterior signs. If visual conflicts exist with the intent of the
body of these standards along the highway corridor, the Pitkin County Airport shall work
with Community Development to resolve conflicts and amend the Pitkin County Airport
Master Plan signage plan where appropriate.
(a) One two-sided back-to-back free standing identification sign per entrance is
required.
The following standards shall only apply to the Buttermilk Activity Node:
Design:
(1) The placement, height and massing of structures at the base of the Buttermilk ski area
shall maintain open views of the ski mountain.
(2) Roof lines shall be articulated so as not to appear as one continuous linear plane;
(3) Maintain setback of 200 feet from Highway 82 Right of Way.
Landscaping:
(1) Landscaping shall be native mixed species with plantings of varying heights and setbacks
to soften and complement the facades of buildings as referenced in the Colorado Native
Plant Society’s “Suggested Native Plants for Gardening and Landscape Use”;
(2) The parking area provides views of the ski mountain and continues to provide a sense of
open landscape. This area shall include native, low shrubs and grasses in designated
islands throughout the lot. Native plantings will provide needed drainage areas while
limiting water usage, and provide green coverage throughout the hard surface parking
area. Only species identified in the Colorado Native Plant Society’s “Suggested Native
Plants for Gardening and Landscape Use” shall be used.
(3) Existing intermittent tree placement along Owl Creek Road and the Buttermilk parking
lot shall be maintained, and replacement trees shall be of a variety that is limited to a
height at maturity that will continue to provide views of the mountain. To maintain
mountain views, the density of the trees in this location shall not be increased.
Lighting:
See entire west of MOMP planning area standards.
Signage:
(1) Limit free-standing identification signs to one per primary entrance.
(a) Sign shall be “anchored” on the ground with a base and/or landscaped area.
(b) Base and landscaping will be included as part of total sign structure height.
(c) Downward lighting is required.
(2) One back-to-back, two-sided free standing identification sign per primary entrance is
required.
The following standards shall only apply to the Inn at Aspen Activity Node:
Design:
(1) Maintain a setback of a minimum of 110 feet from the Highway 82 Right of Way.
(2) Maintain height of 19 feet within the first 200 feet from the Highway 82 Right of Way.
Allow height to increase to underlying zone district height standard when located more
than 200 feet from the Highway 82 Right of Way.
(3) Design structures using building materials and colors that blend with the landscape.
Landscaping:
(1) Landscaping shall balance the need to complement development and maintain
background views of ridgelines.
(2) A variety of native species shall be used as landscaping is replaced as referenced in the
Colorado Native Plant Society’s “Suggested Native Plants for Gardening and Landscape
Use”.
(3) Allowed height of replacement trees at maturity shall be determined based on siting of
development and compliance with #1 above.
Signage:
(1) Limit free-standing identification signs to one per primary entrance.
(a) Sign shall be “anchored” on the ground with a base and/or landscaped area.
(b) Base and landscaping will be included as part of total sign structure height.
(c) Downward lighting is required.
(2) One back-to-back, two-sided free standing identification sign per primary entrance is
required.
The following standards shall only apply to the Pomegranate / Aspen Country Inn Activity
Node:
Design:
(1) To maintain views of backdrop ridgelines from Highway 82, maintain the height of
structures at no higher than the current level. A reduction in building height is required as
redevelopment occurs.
(2) Maintain setback from the Highway 82 right of way as follows:
(a) Pomegranate: 180 feet to condominium building. Setback for the Pomegranate
garages are subject to City of Aspen zoning and land use approvals.
(b) Aspen Country Inn senior housing: 195 feet to hip roof structure.
(c) Aspen Country Inn housing (west building): 200 feet.
Landscaping:
(1) Maintain vegetation to screen development until such time as redevelopment occurs.
(2) Maintain the continuous creekside native vegetation as viewed from Highway 82 when
heading downvalley.
(3) Landscaping shall complement architecture and maintain background views of ridgelines;
specifically the ridgeline views of Aspen Mountain, Highland Mountain,
Buttermilk/Tiehack Mountains shall not be blocked by vegetation.
(4) Replacement landscaping shall be comprised of a variety of native species.
(5) Allowed height of replacement trees at maturity shall be determined based on siting of
development and compliance with #3, above.
(6) Only species referenced in the Colorado Native Plant Society’s “Suggested Native Plants
for Gardening and Landscape Use” shall be used.
Lighting:
See general provisions above
Signage:
(1) Limit free-standing identification signs to one per primary entrance.
(a) Sign shall be “anchored” on the ground with a base and/or landscaped area.
(b) Base and landscaping will be included as part of total sign structure height.
(c) Downward lighting is required.
(2) One back-to-back, two-sided free standing identification sign per primary entrance is
required.