Article 49 — Accessory Dwelling Units and Junior Accessory Dwelling Units.
Sec. 49.10. - Architectural objective.
Colusa Zoning Code · 2026-06 edition · updated 2026-09-09 · Colusa
(a)
Architectural compatibility between the accessory dwelling unit and primary dwelling unit shall be demonstrated by matching two or more of the following qualities of the accessory dwelling unit to the proposed or existing primary dwelling unit:
a.
Color;
b.
Siding material and style; or
c.
Architectural design elements and features, (e.g., roof pitch, window style, trim details).
(b)
Exterior Entrance. An accessory dwelling unit must include a separate exterior entrance.
(c)
Privacy. A balcony, window or door of a second story accessory dwelling unit shall be designed to lessen privacy impacts to adjacent properties. Appropriate design techniques include obscured glazing, window placement above eye level, screening treatments, or locating balconies, windows and doors toward the existing on-site residence.
(d)
Residential Development. A residential dwelling must already exist on the lot or shall be constructed on the lot in conjunction with the construction of the accessory dwelling unit.
Sec. 49.11. - Number per lot.
Number of Units. No more than the number of ADUs allowed by state law may be constructed on any lot.
(Ord. No. 568, 5-20-2025)
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- Article 1 — Findings and Adoption of Zoning (District) Plan.
- Article 2 — Designation of Districts.
- Article 3 — Establishment of Districts.
- Article 4 — Definitions.
- Article 5 — R-1 Single Family Residence District—Regulations.
- Article 8 — R-4 General Apartment District—Regulations.
- Article 9 — C-N Neighborhood Business District—Regulations.
- Article 10 — C-G General Commercial District—Regulations.
- Article 11 — C-H Highway Service Commercial District— Regulati…
- Article 12 — M-1 Light Industrial District—Regulations.
- Article 13 — M-2 General Industrial District—Regulations.
- Article 14 — M-L Limited Manufacturing District—Regulations.
- Article 15 — P-D Planned Development District—Regulations.
- Article 16 — P-F Public Facilities District—Regulations.
- Article 17 — O-S Open Space District—Regulations.
- Article 18 — F-W Floodway District—Regulations.
- Article 19 — "A" Agricultural Combining Districts—Regulations.
- Article 20 — "B" Special Building Site Combining District— Reg…
- Article 21 — "CD" Special Civic District Combining District— R…
- Article 21.5 — Cannabis Regulations.
- Article 22 — "F" Special Highway Frontage Combining District— …
- Article 23 — "FP" Special Floodplain Combining District—
- Article 24 — "H" Special Height Combining District—Regulations.
- Article 25 — "P" Special Parking Combining District—Regulations.
- Article 26 — "O" Special Divided Ownership—Regulations.
- Article 27 — "A-O" Special Adult-Oriented Combining District— …
- Article 28 — Fire Zones.
- Article 29 — Off-Street Parking Requirements.
- Article 30 — Landmark and Historic Preservation.
- Article 31 — Outdoor Advertising and Sign Regulations.
- Article 33 — Use Permits.
- Article 34 — Variances.
- Article 35 — Nonconforming Uses.
- Article 36 — Amendments, Alterations, Changes in Districts.
- Article 37 — Enforcement, Legal Procedure, Penalties.
- Article 38 — Repealing.
- Article 39 — Floodplain Management.
- Article 40 — Dedication of Lands for Park and Recreational Pur…
- Article 41 — Density Bonus.
- Article 41.5 — By Right Housing Projects.
- Article 42 — High Density Housing Combining District.
- Article 43 — Reasonable Accommodations.
- Article 44 — "M-U-B" Bridge Street Mixed-Use District— Regulat…
- Article 45 — "M-U-D" Downtown Mixed Use District—Regulations.
- Article 46 — "M-U-M" Main Street Mixed Use District—Regulations.
- Article 47 — "M-U-R" Residential Mixed-Use District—Regulations.
- Article 48 — Mixed Use Districts Table.
▸Article 49 — Accessory Dwelling Units and Junior Accessory Dwe…
Overview- Sec. 49.01. - General requirements.
- Sec. 49.02. - Reserved.
- Sec. 49.03. - Permit requirements.
- Sec. 49.04. - Accessory dwelling units—Application and process…
- Sec. 49.05. - Utility connections and fees.
- Sec. 49.06. - Accessory development standards.
- Sec. 49.07. - Maximum floor area.
- Sec. 49.08. - Height limit.
- Sec. 49.09. - Lot coverage.
- Sec. 49.10. - Architectural objective.
- Sec. 49.12. - Parking.
- Sec. 49.13 - Standards for proposed accessory structures attac…
- Sec. 49.14. - General requirements.
- Sec. 49.15. - Reserved
- Sec. 49.16. - Permit requirements.
- Sec. 49.17. - Application and processing requirements.
- Sec. 49.18. - Utility connection fees.
- Sec. 49.19. - Development standards.
- Sec. 49.20. - Deed restrictions.