Colusa, CA Off-Street Parking and Loading Regulations
In Colusa, CA, standard parking spaces must be 9'x20'. Residential requirements range from one garage space for single-family homes to 1.5 covered spaces for multifamily units. Commercial uses typically require one space per 200 square feet of floor area. Parking must be paved for non-residential uses and may be located off-site within 400 feet if a formal covenant is recorded.
The City of Colusa mandates specific off-street parking and loading requirements for all new construction, enlargements, or intensifications of use. These regulations ensure adequate space for vehicles, safe ingress and egress, and the preservation of neighborhood character.
General Provisions and Applicability
Parking requirements are triggered at the time of erection, enlargement, or intensification of any building or structure.
- The 50% Rule: If the cost of construction for an enlargement or intensification is 50% or more of the original building's value (calculated as four times the Colusa County assessor's current assessed valuation), the entire property must meet current parking standards. If the cost is less than 50%, only the new portion must comply [§ Sec. 29.01].
- Rounding: Any fractional space requirement constitutes one full additional required space (e.g., 9.2 spaces becomes 10) [§ Sec. 29.01].
- Commercial Exemption: Presently zoned and developed commercial property is exempt from these requirements [§ Sec. 29.01].
- "P" Combining District: In areas designated with a "P" Special Parking Combining District, the regulations of Article 25 apply. If a conflict occurs between Article 25 and other zoning regulations, Article 25 governs [§ Sec. 25.01].
Required Parking Spaces by Use
The following table summarizes the minimum off-street parking requirements for common land uses:
| Use Category | Minimum Parking Requirement |
|---|---|
| Residential | |
| Single-family dwelling | 1 single car garage or carport [§ Sec. 29.01(a)] |
| Duplex | 1 garage or carport space per dwelling unit [§ Sec. 29.01(b)] |
| Multifamily dwelling | 1.5 covered spaces per dwelling unit [§ Sec. 29.01(c)] |
| Accessory Dwelling Unit (ADU) | 1 space (unless 750 sq. ft. or less, or meeting other exceptions) [§ Sec. 49.12] |
| Commercial & Office | |
| Retail Store | 1 space per 200 sq. ft. of gross floor area [§ Sec. 29.01(s)] |
| Restaurant | 1 space per 4 seats [§ Sec. 29.01(t)] |
| Professional Office | 1 space per 300 sq. ft. of gross floor area plus 1 space per office [§ Sec. 29.01(m)] |
| Medical Office / Clinic | 1 space per 200 sq. ft. of gross floor area [§ Sec. 29.01(n)] |
| Hotel | 1 space per room plus 2 additional spaces [§ Sec. 29.01(e)] |
| Motel | 1 space per unit plus 2 spaces for management [§ Sec. 29.01(f)] |
| Industrial & Other | |
| Industrial Uses | 1 space per 1,000 sq. ft. of gross floor area [§ Sec. 29.01(w)] |
| Warehousing | 1 space per 1,000 sq. ft. of gross floor area [§ Sec. 29.01(u)] |
| Church / Public Assembly | 1 space per 5 seats or 1 space per 45 sq. ft. in principal area (whichever is greater) [§ Sec. 29.01(g)] |
| General Service Hospital | 1 space per 4 beds plus 1 space per 4 employees [§ Sec. 29.03] |
Design and Maintenance Standards
All off-street parking areas must be improved and maintained according to the following specifications:
- Dimensions: Standard parking spaces must have a minimum length of 20 feet and a minimum width of 9 feet [§ Sec. 29.04(b)]. In "P" districts, residential spaces must be at least 10 feet wide, 24 feet long, and 7 feet high [§ Sec. 25.02(a)].
- Surfacing: For commercial, industrial, or multifamily uses, spaces and access must be paved with chips and seal coat, asphalt concrete, or concrete, and include adequate drainage approved by the city engineer [§ Sec. 29.04(a)].
- Striping: For lots with five or more spaces, contrasting paint or distinguishable material must be used to identify each space [§ Sec. 29.04(c)(1)].
- Maneuvering: Parking areas must provide enough space so that vehicles can exit onto adjoining streets in a forward direction [§ Sec. 29.04(c)(2)].
- Lighting: Areas used after dark must provide a minimum of one-half foot candle illumination at every point, shielded to reflect light away from adjoining premises [§ Sec. 29.04(c)(5)].
- Screening: Where a parking area abuts "R" (Residential) zones, it must be separated by a solid masonry wall or wooden fence between 4 and 6 feet high [§ Sec. 29.04(c)(4)].
Location and Off-Site Parking
Parking spaces must generally be located on the same lot as the main building. However, the Planning Commission may permit off-site parking via a use permit if the following conditions are met:
- The facilities are located within 400 feet of the site [§ Sec. 29.02(e)].
- The owner(s) execute a declaration of restrictions and covenants (on forms prescribed by the planning department) to ensure the perpetuation of the parking space. These restrictions can only be waived with the consent of the Planning Director and the owners of more than half of the affected property [§ Sec. 25.03].
Loading Space Requirements
Hospitals, institutions, hotels, and commercial or industrial buildings must provide permanently maintained loading spaces if the lot abuts an alley or is surrounded by streets.
- Quantity: One space for each 4,000 square feet of lot area, up to a maximum of two spaces [§ Sec. 29.01(x), Sec. 25.04].
- Dimensions: Minimum 10 feet wide, 20 feet long, and 14 feet high [§ Sec. 29.01(x)].
Modifications and Special Permits
The Planning Director or Planning Commission may adjust requirements in specific scenarios:
- Joint Facilities: Adjoining parcel owners may apply for a minor use permit to share parking if their maximum demands occur at different times [§ Sec. 29.02(a)].
- Industrial Reductions: The Planning Commission may reduce requirements for industrial uses if the waived area remains as landscaped or unimproved open space for future potential needs [§ Sec. 29.02(c)].
- Common Areas: The Planning Director may reduce requirements based on floor area used strictly for common uses like corridors or restrooms [§ Sec. 29.02(g)].