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Gunnison City Zoning Code

APPENDIX B

TABLES OF DEVELOPMENT STANDARDS

Appendix B Standards For Primary Buildings And Structures


REQUIREMENTSZONING DISTRICS
A-1RRR-2R-4MHRCCCI-1S-1H
1. Building Foundation RequirementsAll habitable buildings and structures shall be constructed on and permanently attached to a permanent foundation.


2. Minimum Dwelling Size. The minimum habitable living area of each dwelling


ZONING DISTRICS
A-1RRR-2R-4MHRCCCI-1S-1H
Single Family1000 s.f.1000 s.f.1000 s.f.900 s.f.700 s.f.900 s.f.900 s.f.900 s.f.NA
Two FamilyNANA900 s.f.850 s.f.850 s.f.850 s.f.NANA
Multi-FamilyNA800 s.f.800 s.f.800 s.f.


3. Minimum Lot Sizes and Widths. The following standards are for specified residential uses permitted within the city’s zones. Permitted non-residential uses or multi-family developments with more units than those listed below must have sufficient acreage and site dimensions to comply with the development standards of this code based on the intended use. Large Lots may be subdivided in accordance with the Subdivision Ordinance and may have lot areas and widths less than those indicated below for the respective zones.

REQUIREMENTSZONING DISTRICTS
A-1RRR-2R-4MHRCCCI-1S-1H
Minimum Lot Size (Internal Lot/Corner Lot)
Single Family40 ac.1 ac.10,000 s.f. / 12,000 s.f.7,500 s.f. / 9,000 s.f.NANANANA
Two-FamilyNANA15,000 s.f. / 18,000 s.f.10,000 s.f. / 12,000 s.f.
Three-FamilyNA12,500 s.f. / 15,000 s.f.
Four-Family15,000 s.f. / 18,000 s.f.
Non-Residential40 ac.5 ac.2 ac.As necessary to comply with city development standards


REQUIREMENTS
ZONING DISTRICTS
A-1RRR-2R-4MHRCCCI-1S-1H
Minimum Lot Width (Internal Lot / Corner Lot) - See also Section 1115 for cul-de-sac lot standards
Single Family

200 ft / 240 ft

130 ft / 160 ft100 ft / 120 ft75 ft / 90 ftNANANANA
Two-FamilyNANA118 ft90 ft / 110 ft
Three-FamilyNA110 ft / 120 ft
Four-Family110 ft / 135 ft
Non-ResidentialAs necessary to comply with city development standards


4. Minimum Yard Requirements: The following Yard Area Requirements (i.e., setbacks) shall be the minimum for all primary structures on a lot or property. However, unenclosed steps, unwalled stoops, and porches less than eighteen inches (18”) above grade may project up to three feet (3’) into the listed front and rear setbacks. Additionally, for primary buildings proposed to be located in the R-2, R-4, MH and the RC Districts, the front setback for a primary building located between two (2) existing primary buildings may be reduced to the average front yard setback of the existing primary buildings, provided the two (2) existing primary buildings are located on the same side of the street right-of-way, and are located within one hundred fifty feet (150’) of each other, and provided further that no primary building has a front yard less than twenty feet (20’).


ZONING DISTRICTS

A-1RRR-2R-4MHRCCCI-1S-1H

FRONT
Internal Lot40 ft25 ft25 ft25 ft25 ft25 ftSee Site Standards25 ftSee Site Standards10 ft
Corner Lot




25 ftSee Site Std.10 ft
Non-Residential




20 ft25 ft10 ft
Non-Residential Adjacent to Res. ZoneNA20 feet or one (1) foot for every one (1) foot of building height, whichever is greater.

SIDE
Residential Internal Lot30 ft15 ft8 ft min. / 20 ft. combinedSee Site Standards20 ftSee Site Standards10 ft
Non-Residential Internal Lot30 ft15 ft10 ft20 ft10 ft8 ft20 ft10 ft
Non-Residential Adjacent to Res. ZoneNA20 feet or one (1) foot for every one (1) foot of building height, whichever is greater.
Corner Street Side40 ft25 ft20 ft20 ft20 ft20 ftSee Site Standards25 ftSee Site Standards10 ft
Corner Internal Side30 ft15 ft8 ft8 ft8 ft8 ft20 ft10 ft

REAR
Residential Internal Lot60 ft30 ft20 ft20 ft20 ft20 ftSee Site StandardsSee Site StandardsSee Site Standards20 ft
Non-Residential Internal Lot60 ft30 ft20 ft20 ft20 ft8 ft8 ft
Adjacent to any Street40 ft30 ft20 ft20 ft20 ft20 ft10 ft
Corner (Res./Com.)40 ft30 ft20 ft20 ft20 ft20 ft / 8 ft10 ft
Non-Residential Adjacent to Res. ZoneNA20 feet or one (1) foot for every one (1) foot of building height, whichever is greater.


5. Building Dimensions and Landscaping

REQUIREMENTSZONING DISTRICS
A-1RRR-2R-4MHRCCCI-1S-1H
Minimum Building Height10 feet, or one (1) story entirely above grade measured from the lowest point of the natural or finished grade immediately adjacent to an exterior wall to the highest point of the roofline. See Main Street Overlay for additional standards that may apply.
Maximum Building Height (See GLUO Section 1625 for exceptions)35 feet, or two (two) stories measured from the lowest point of the natural or finished grade immediately adjacent to an exterior wall to the highest point of the roofline. The maximum height measurement includes the height of all roof-mounted mechanical and ancillary equipment, and including, but not limited to, towers, stairways, tanks, ventilating fans, or similar equipment required to operate and maintain a building, and fire or parapet walls.40 feet, or 35 feet when the lot is adjacent to a Residential Zoning District, measured from the lowest point of the natural or finished grade immediately adjacent to an exterior wall to the highest point of the roofline. The maximum height measurement includes the height of all roof-mounted mechanical and ancillary equipment, and including, but not limited to, towers, stairways, tanks, ventilating fans, or similar equipment required to operate and maintain a building, and fire or parapet walls.
Minimum Dwelling Unit DimensionsAll dwelling units shall be a minimum of twenty-four (24) feet wide at the narrowest point, excluding any attached accessory structure. The building width shall be considered the lesser of the two (2) primary dimensions of the building.No requirement
Minimum Landscaping RequiredNo requirements for single family detached or two unit dwellings. See Section 1710 for other developments.See Section 1710


HISTORY
Adopted by Ord. 2010-2 on 11/17/2010
Amended by Ord. 2016-4 on 7/13/2016
Amended by Ord. 2023-05 on 9/20/2023
Amended by Ord. 2023-06 on 11/16/2023
Amended by Ord. 2024-03 on 3/7/2024
Amended by Ord. 2024-12 on 11/21/2024
Amended by Ord. 2025-08 on 11/13/2025

Appendix B-1 Standards For Detached Accessory Buildings And Structures

REQUIREMENTSZONING DISTRICT
A-1RRR-2R-4MHRCCCL-1S-1H
Location

No Accessory Building/Structure shall be located in any required Front Yard area.

An Accessory Building/Structure located ten (10) feet or less, measured to the closest point, from the Primary Building shall be considered an attached structure and shall comply with all setback standards required for the Primary Structure, as provided by Appendix B. An Accessory Building/Structure located a distance greater than ten (10) feet from a primary building, at the closest point, shall be considered as detached and shall comply with the requirements of this Table.

All accessory buildings located ten (10) feet or more away from the primary building or structure, at the closest point, and twenty (20) feet or more from any property line that abuts a road or street, at the closest point, may be located not less than three (3) feet from the side or rear property line(s), provided no accessory buildings are located in the required front yard or within an area containing a recorded easement and provided that the accessory building meets a one (1) hour, or more, fire rated construction, and no drainage from the accessory building is permitted to drain onto any adjacent property.All accessory buildings located ten (10) feet or more away from the primary building or structure, at the closest point, and twenty (20) feet or more from any property line that abuts a road or street, at the closest point, shall be located as required by the Land Use Authority for Site Plan approval.
Smaller Detached Accessory BuildingsSee Section 1708
Maximum Building SizeAccessory buildings shall not be larger than twenty-five percent (25%) of the required rear yard area.As required by the Land Use Authority for Site Plan approval.
Maximum Building HeightNo detached accessory building shall be higher than eighteen (18) feet, measured to the top of the wall plate or twenty-five (25) feet to the highest point of the roofline, whichever is greater.
Minimum Side YardThree (3) feet, provided no accessory buildings are located in the required front yard or within a recorded easement and provided that the accessory building meets a one (1) hour, or more, fire rated construction, and no drainage from the accessory building is permitted to drain onto any adjacent property.
Minimum Side Yard — Corner Lots (adjacent to a road or street)40 feet 25 feet 20 feet 20 feet 20 feet 20 feet
Minimum Side Yard — Accessory Buildings housing animals or fowl40 feet, providing the Minimum Distance to a Residence is met (Section 1719)25 feet, providing the Minimum Distance to a Residence is met (Section 1719)20 feet, providing the Minimum Distance to a Residence is met (Section 1719)
Minimum Site Yard — Corner Lots — Accessory Buildings housing animals or fowl
Minimum Rear YardThree (3) feet, provided no accessory buildings are located in the required front yard or within a recorded easement and provided that the accessory building meets a one (1) hour, or more, fire rated construction, and no drainage from the accessory building is permitted to drain onto any adjacent property.
Minimum Rear Yard — Detached Accessory Buildings housing animals or fowl60 feet, providing the Minimum Distance to a Residence is met (Section 1719)30 feet, providing the Minimum Distance to a Residence is met (Section 1719)20 feet, providing the Minimum Distance to a Residence is met (Section 1719)
Minimum Distance to a Residence for Accessory Buildings housing animals or fowlNo accessory building or structure used for the housing of animals or fowl shall be located less than forty (40) feet from a dwelling located on the same lot and not less than seventy-five (75) feet from a dwelling on any adjacent lot.No accessory building or structure used for the housing of animals or fowl shall be located less than seventy-five (75) feet from a dwelling on any adjacent lot.
Clear ViewSee Section 1625
HISTORY
Adopted by Ord. 2010-2 on 11/17/2010
Amended by Ord. 2025-08 on 11/13/2025

2010-2

2016-4

2023-05

2023-06

2024-03

2024-12

2025-08