Off-Street Parking Standards for the M-1 Light Industrial District in Grass Valley
In the City of Grass Valley's M-1 Light Industrial district, standard industrial and manufacturing uses require one space per 200 square feet of office area plus one space per 500 square feet of non-office floor area. Residential projects permitted in this district, such as live/work units, require two spaces per unit, while accessory dwelling units typically require one space unless located within one-half mile of public transit. Parking areas in the M-1 Light Industrial district must maintain specific setbacks, including a 20-foot buffer from the back of the curb on major streets [Table 2-13].
Off-Street Parking Ratios
The City of Grass Valley prescribes specific parking ratios based on the type of land use established within the M-1 Light Industrial district. If a single site contains multiple components (such as an industrial facility with an office), parking must be provided for each component [Section 17.36.040].
Industrial and Commercial Parking Ratios
The following table outlines the required vehicle spaces for typical industrial and commercial uses allowed in the M-1 Light Industrial district:
| Land Use Type | Vehicle Spaces Required |
|---|---|
| Manufacturing, Industrial, and Processing | 1 space for every 200 sf of office area; AND 1 space for every 500 sf of floor/ground area (non-office); AND 1 space for every 5,000 sf of open storage |
| Wholesaling and Distribution | 1 space for every 500 sf |
| Warehousing | 1 space for every 500 sf of floor area |
| General Retail Trade | 1 space for every 250 sf of floor area, plus 1 space for every 300 sf of outdoor sales area |
| Restaurant, Café, Coffee Shop | 1 space for every 60 sf of dining area |
| Vehicle Services (Major and Minor) | 4 spaces for every service or wash bay, plus spaces for office areas as required above |
| Equipment Rental | 1 space for every 300 sf of floor area (none required for outdoor storage if the yard can accommodate all customer vehicles) |
| Media Production | 1 space for every 300 sf |
[Table 3-3]
Residential Parking Ratios in the M-1 District
While the M-1 Light Industrial district is primarily intended for industrial uses, certain residential uses like Accessory Dwelling Units (ADUs) and Live/Work units are permitted [Table 2-10].
| Residential Use Type | Vehicle Spaces Required |
|---|---|
| Live/Work Unit (residential portion) | 2 spaces for each unit |
| Accessory Dwelling Unit (ADU) | 1 space per unit (unless located within 0.5 miles of transit or in a Historical District) |
[Table 3-3, Section 17.36.040]
Parking Design and Dimension Standards
All parking facilities within the M-1 Light Industrial district must comply with the City of Grass Valley’s standard dimensions to ensure safe maneuvering.
Standard Space Dimensions
| Space Type | Width | Length |
|---|---|---|
| Standard Stall | 9 feet | 18 feet |
| Compact Stall | 8 feet | 16 feet |
[Table 3-4, Table 3-6]
Maneuvering and Aisle Widths
For the M-1 Light Industrial district, the required aisle width depends on the angle of the parking spaces:
| Parking Angle | Aisle Width (One-Way) | Aisle Width (Two-Way) |
|---|---|---|
| Parallel | 12 feet | 24 feet |
| 30 Degree | 12 feet | N/A |
| 45 Degree | 14 feet | N/A |
| 60 Degree | 18 feet | N/A |
| Perpendicular (90 deg) | 24 feet | 24 feet |
[Table 3-5]
Setbacks and Location Requirements
The City of Grass Valley requires that parking areas in the M-1 Light Industrial district be set back from property lines to maintain safety and aesthetics.
- Front Setback (Major Street): Parking must be located at least 20 feet from the back of the curb [Table 2-13].
- Front Setback (Local Street): Parking must be located at least 15 feet from the back of the curb [Table 2-13].
- Street Side Setback: On corner lots, parking must be set back 15 feet from the back of the curb [Table 2-13].
- Interior Side and Rear Setbacks: Parking may be located within these setbacks provided it is separated from the property line by a minimum five-foot wide landscaped area [Section 17.36.090].
- Driveway Width: Driveway curb cuts must be separated by at least 30 feet from edge-to-edge [Section 17.44.200].
Additional M-1 District Provisions
- Bicycle Substitution: Nonresidential developments in the M-1 Light Industrial district may substitute bicycle spaces for required vehicle spaces at a rate of eight bicycle spaces for one vehicle space, up to 10% of the total requirement [Section 17.36.060].
- Compact Vehicles: Up to 20% of the required parking spaces for nonresidential projects may be designated as compact spaces [Section 17.36.090].
- Surface Materials: All parking areas and maneuvering aisles must be surfaced with at least two inches of asphaltic concrete or three and one-half inches of Portland cement concrete [Section 17.36.090].
- Landscaping: A minimum of 10% of the gross area of any outdoor parking lot must be landscaped [Section 17.34.030].
Sections Cited
- Section 17.24.030 - Commercial and industrial zone land uses and permit requirements
- Section 17.24.040 - Commercial and industrial zone site planning and building standards
- Section 17.34.030 - Parking lot landscaping
- Section 17.36.040 - Number of parking spaces required
- Section 17.36.060 - Bicycle parking
- Section 17.36.090 - Parking design and development standards
- Section 17.44.200 - Service stations