Local zoning · Colusa

Colusa — Parking

Q: What are the basic off‑street parking quantities for homes in Colusa?

For a single‑family house the code requires one single‑car garage or carport ; for duplexes one garage/carport space per unit; multifamily requires 1.5 covered spaces per unit — see § 29.01 .

Q: Do ADUs need separate parking in Colusa?

Colusa requires one off‑street parking space for an ADU except where the ADU qualifies for listed exemptions (e.g., ADU ≤750 sq ft, ADU inside primary residence, ADU created by converting existing garage) under § 49.12 — verify exemptions against your project facts § 49.12 .

Q: Are bicycle parking requirements listed in the Colusa zoning code?

Bicycle parking standards are not found in the retrieved materials . The zoning extract does not list a bicycle parking minimum; verify with the planning department or development standards and the project planner. Not found in retrieved materials.

Parking under the Colusa local zoning and planning code, with the controlling citations.

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Last reviewed: July 1, 2026

Overview

This page explains how the City of Colusa regulates off‑street parking, loading, and related site standards in the local zoning ordinance (Title 17). The City centralizes minimum parking quantities and construction/specification rules in Article 29 and cross‑references those minimums from nearly every zoning district; loading standards are in § 25.04. For accessory dwelling units (ADUs) the City has a stand‑alone parking rule in § 49.12. Verify with the jurisdiction for parcel‑specific interpretations. parking(/us/california/colusa/development-standards) rules below are summarized and tied to the controlling code sections.

How Colusa structures parking rules (short)

The minimum number of parking spaces for the use is listed in § 29.01 and applied citywide by district (most districts say "Off‑street Parking: As required in Article 29") § 29.01 .
Minimum construction/specification (paving, stall dimensions, lighting, screening, maneuvering) are in § 29.04 .
Off‑site and shared parking, reductions, and waivers are handled by minor use permits/use permits per § 29.02 .
Loading‑space minimums are in § 25.04 (dimensions and triggers) .
ADU parking exceptions and special rules are in § 49.12 .

Also see related Colusa rules on development standards and site design (setbacks / paving / landscape) in the context of parking and screening development standards, landscaping and screening, and review/exception processes such as design review and variances and exceptions.

District-by-district breakdown — where parking rules apply and what to expect

Notes on reading these subsections: every district below defers to the City’s parking schedule in § 29.01 unless the district text says otherwise. Where the district text specifically repeats "Off‑street Parking: As required in Article 29" that is called out and cited.

R-1 — Single‑Family Residence District

Purpose / typical uses: single‑family homes; residential neighborhood character (see R districts generally) § 1.01 .
Key dimensional/parking standard: Single‑family dwelling: one single‑car garage or carport required per dwelling under § 29.01 .
Where it applies: standard single‑family neighborhoods as mapped in the zoning ordinance (see zoning map). Off‑street location rules (on‑lot or within 400 ft) in § 25.03 apply .

R-2 — Two‑Family Residence District

Purpose / typical uses: duplexes and two‑family housing.
Key parking standard: Duplex: one garage/carport space per dwelling unit per § 29.01 .
Notes: Many R‑district site standards reference that parking is governed by Article 29 (see R subdistrict articles) .

R-3 / R-4 — Neighborhood Apartment / General Apartment Districts

Purpose / typical uses: multi‑family dwellings, apartments.
Key parking standard: Multifamily dwelling: 1.5 covered parking spaces per dwelling unit per § 29.01 . District development rules also refer applicants to Article 29 for off‑street parking requirements .

C‑N — Neighborhood Business District (C‑N)

Purpose / typical uses: convenience retail and services oriented to nearby residences (food stores, barbers, clinics, restaurants, etc.) § 9.02 .
Key parking rule: Off‑street parking is required as specified in Article 29 for the applicable use (retail, offices, restaurants). See the use‑by‑use ratios in § 29.01 (for example, Retail: 1 per 200 sq ft, Restaurant: 1 per 4 seats) .
Special: Commercial parking lots and parking garages are permitted uses in C‑N § 9.02(d) .

C‑G — General Commercial District (C‑G)

Purpose / typical uses: broader commercial services and retail serving city and highway traffic.
Key parking rule: District text explicitly defers to Article 29 for off‑street parking; applicants must meet the use‑specific minimums in § 29.01 .

M‑1 / M‑2 / M‑L — Industrial Districts

Purpose / typical uses: light to general industrial and warehousing.
Key parking standards: Industrial: 1 per 1,000 sq ft; Warehousing: 1 per 1,000 sq ft; also a staff‑based rule for some industrial buildings: 1 per 5 employees for buildings ≥2,000 sq ft § 29.01 and related paragraphs . The planning commission can adjust industrial parking by use permit § 29.02(c) .

M‑U (Mixed‑Use) districts — M‑U‑B / M‑U‑R (Bridge St. Corridor / Residential Mixed‑Use)

Purpose / typical uses: mixtures of retail, office and residential. Bridge St. corridor standards list parking as "As required in Article 29" § 44.03(i) .
Key parking note: ground‑floor commercial must still supply parking per Article 29; mixed‑use projects should coordinate with design review and site planning (see design review).

P‑F — Public Facilities District

Purpose / typical uses: public buildings, schools, parks.
Parking: Off‑street parking requirements for public uses are imposed per Article 29 and sometimes adjusted during site review depending on the public use and parking demand; see Article 16 and cross‑reference to Article 29 for parking .

Key numeric standards (decision‑relevant table)

Typical use	Minimum off‑street parking required	Code reference
Single‑family dwelling	One single‑car garage or carport	§ 29.01
Duplex	One garage/carport space per dwelling unit	§ 29.01
Multifamily	1.5 covered parking spaces per unit	§ 29.01
Second unit (additional)	One off‑street parking space (in addition to main dwelling)	§ 29.01
Hotel	1 per hotel room + 2 extra spaces	§ 29.01
Retail store	1 per 200 sq ft gross floor area	§ 29.01
Restaurant	1 per 4 seats	§ 29.01
Professional office	1 per 300 sq ft gross floor area	§ 29.01
Medical offices/clinics	1 per 200 sq ft gross floor area	§ 29.01
Industrial / Warehouse	1 per 1,000 sq ft gross floor area (industrial)	§ 29.01
General hospital (new/enlarged)	1 per 4 beds + 1 per 4 employees	§ 29.03
Loading (commercial/industrial/hospital where lot abuts alley or surrounded by streets)	1 loading space (min 10' × 20' × 14') per 4,000 sq ft of lot area; max 2 per lot	§ 25.04
ADU	One off‑street space required except specific exemptions (see list)	§ 49.12

For construction/specification of parking areas (stall size, paving, drainage, lighting, wheel stops, screening), see § 29.04 . Illustrative approved parking layouts are provided in the ordinance (design diagrams) — applicants deviating from those must demonstrate safe maneuvering and pedestrian access § 29.04(7) .

Practical guidance / interpretation notes

Quantities are use‑based, not parcel‑based: identify the primary use (e.g., restaurant vs. retail) and apply the matching line in § 29.01 .
If you cannot fit the required stalls on the parcel, the planning commission may approve off‑site parking within 400 feet by use permit § 29.02(e) and § 25.03 .
The planning director can impose greater minimums for unique cases or reduce/waive some location requirements (e.g., rear‑half covered parking) by minor use permit where justified § 29.02(d),(f) .
Parking construction rules (paving, striping, stall dimension 9' × 20' minimum) and lighting/screening details are in § 29.04 — comply with those and coordinate with the City Engineer for drainage/grade approvals § 29.04(a)‑(b),(c) .
For ADUs, Colusa follows its local ADU standard § 49.12 which is partially relaxed compared to general Article 29 rules (specific exemptions apply) — check § 49.12(a)‑(d) for when the one‑space requirement is waived . See summary guidance on ADUs ADUs and state law California ADU law.
Bicycle parking standards are not located in the retrieved text — not found in retrieved materials; bicycle parking may be implemented in development standards or project conditions (verify with the planning department and see development standards).

Checklist

Identify the primary use(s) and calculate required spaces using § 29.01 (use table) .
Show stall dimensions and parking lot layout meeting § 29.04 (9' × 20' min, paving/drainage, markings, maneuvering, lighting) .
Provide required loading spaces for qualifying buildings per § 25.04 (dimensions & triggers) .
If off‑site, show location within 400 ft and recordable restrictions per § 25.03/§ 29.02(e) .
If requesting reductions/combinations/waivers, prepare findings for a minor use permit or use permit under § 29.02 .
For ADUs, confirm whether the project meets any exemption that waives the extra space under § 49.12 .
Coordinate screening/landscape and design review (as required) and confirm sidewalk/pedestrian access (see landscaping and screening and design review).
Verify bicycle parking and accessible parking requirements with City staff — bicycle parking not found in retrieved materials (verify with the jurisdiction).

Risks & Ambiguities

Issue	Why it matters	What to verify
Bicycle parking standards	No bicycle parking minimums or design standards found in the retrieved ordinance text — may leave projects vulnerable to inconsistent conditions	Not found in retrieved materials — verify with the planning department and development standards
Accessible / ADA parking	Accessible stalls are typically governed by building code (Title 24) rather than zoning; absence from Article 29 could cause plan review conflicts	Confirm accessible stall count & layout with building official and reference California Building Standards Code
"Presently zoned and developed commercial property" exemption	The ordinance exempts existing commercial property from retroactive parking compliance — ambiguous when property changes use or is retrofitted	Confirm whether proposed change triggers the exemption under § 29.01
Off‑site parking recordation	Off‑site arrangements must be recorded and may require covenants; failure to record can void approval	Confirm deed restrictions or covenant template with Planning/City Attorney per § 25.03
Loading space application	Sec. § 25.04 sets loading triggers for certain situations (alley or fully‑street‑fronted lots) — many projects may not clearly meet the criteria	Verify whether lot configuration triggers § 25.04 and whether alternative loading designs need a use permit
ADU parking exceptions vs. local development constraints	ADU parking exceptions in § 49.12 relax some requirements but allow the review authority to deny exceptions if infeasible	Confirm which exemption clause applies and whether design/review authority finds site constraints acceptable § 49.12

Plain‑English summary

Colusa makes you provide a set number of off‑street spaces for each use listed in § 29.01 (homes, restaurants, offices, warehouses, etc.), plus loading stalls in specified situations (§ 25.04) and construction/striping/lighting rules under § 29.04. The planning director or commission can approve shared, off‑site, or reduced parking in special cases; ADUs have tailored parking exceptions under § 49.12. Always confirm bicycle and ADA stall requirements with the city because they were not specified in the retrieved ordinance materials.

Source References

City of Colusa, Zoning Code (Title 17) — Article 29. Off‑Street Parking Requirements § 29.01, § 29.02, § 29.03, § 29.04.
(Municode source extract used in the uploaded file) — https://library.municode.com/ca/colusa/codes/code_of_ordinances (verify live link)
City of Colusa, § 25.03 (location of spaces) and § 25.04 (loading space requirements)
City of Colusa, § 49.12 (Accessory Dwelling Unit parking rules)
District provisions referencing Article 29: C‑N (Article 9), C‑G (Article 10), M‑U (Article 44), R‑district references to Article 29 in their articles
Parking lot layout diagrams and approved patterns referenced in Article 29 § 29.04(7)

Sources

Retrieved passages

Colusa Zoning Code (chapter shall) High relevance
Colusa Zoning Code (§ 28) High relevance
Colusa Zoning Code (chapter shall) High relevance
Colusa Zoning Code (Article 29.) High relevance
California Building Code (Article 29.) Medium relevance
Colusa Zoning Code (Article 26.) Medium relevance
Colusa Zoning Code (§ 28) Medium relevance
Colusa Zoning Code (Article 29.) Medium relevance

Cited sections

Official Colusa code library

Frequently asked questions

What are the basic off‑street parking quantities for homes in Colusa?

For a single‑family house the code requires one single‑car garage or carport; for duplexes one garage/carport space per unit; multifamily requires 1.5 covered spaces per unit — see § 29.01 .

Does Colusa require loading spaces for commercial buildings?

Yes — when a hospital, institution, hotel, commercial or industrial building abuts an alley or is surrounded by streets the code requires one loading space (min 10' × 20' × 14') per 4,000 sq ft of lot area, maximum two spaces per lot — see § 25.04 .

Where do I find the parking construction and stall dimension rules?

Minimum stall dimensions, paving, drainage, striping, lighting, wheel stops, and screening rules are in § 29.04; stalls are a minimum 9 ft by 20 ft and parking areas serving the public must be paved and striped, with required maneuvering and lighting per § 29.04 .

Can I provide parking off‑site or share parking with an adjacent property?

Yes. The planning commission may allow off‑site, off‑street parking within 400 feet by use permit, and shared / joint parking or reductions can be approved through minor use permits or use permits under § 29.02 and § 25.03 .

Do ADUs need separate parking in Colusa?

Colusa requires one off‑street parking space for an ADU except where the ADU qualifies for listed exemptions (e.g., ADU ≤750 sq ft, ADU inside primary residence, ADU created by converting existing garage) under § 49.12 — verify exemptions against your project facts § 49.12 .

Are bicycle parking requirements listed in the Colusa zoning code?

Bicycle parking standards are not found in the retrieved materials. The zoning extract does not list a bicycle parking minimum; verify with the planning department or development standards and the project planner. Not found in retrieved materials.

If my business changes use, do I have to bring existing parking up to code?

If structural enlargement or intensification triggers the 50% valuation threshold (as defined in § 29.01), the project must provide the minimum off‑street parking for the total use; smaller projects may only need to provide parking proportional to the enlargement. The ordinance also provides an exemption for "presently zoned and developed commercial property" — check the code language and confirm with planning staff § 29.01 .

What are the City's rules for parking area landscaping, screening, and walls adjacent to residential zones?

Screening, wall heights, and separation of parking areas adjacent to R‑zoned property are addressed in § 29.04(c‑4) (masonry walls or solid non‑transparent fencing 4–6 feet where parking abuts R uses, with low walls near streets) and further landscape standards are handled through the City's landscape/screening rules — see § 29.04 and landscaping and screening .

Who can approve reductions or alternative parking layouts?

The planning director has authority to make minor adjustments or waive some locational requirements by minor use permit and the planning commission can approve reductions or alternative arrangements by use permit; details and criteria are in § 29.02 .

Where does accessible (ADA) parking show up in Colusa regulations?

Accessible parking typically falls under the state building code / Title 24 and was not specified in the zoning extract; confirm accessible stall counts and design with the Building Official and reference the California Building Standards Code. Not found in retrieved materials for zoning.

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