Neighborhood Center Flex (NC-Flex) Zone: Grass Valley Zoning Guide
The Neighborhood Center Flex (NC-Flex) zone in the City of Grass Valley is a mixed-use district that provides for both residential and commercial activity on ground floors with a specific focus on medium-to-high density housing near centers to promote walkability. Development in this district is characterized by pedestrian-oriented design, with primary building placement typically required at a 12-foot build-to line and a maximum building height of 2.5 stories or 30 feet [Section 17.21.030, 17.21.060].
Purpose and General Character
The primary intent of the Neighborhood Center Flex (NC-Flex) zone is to work in combination with the Neighborhood Center (NC) zone to promote the vitality of corridors and centers within various neighborhoods in the City of Grass Valley. This district is designed to allow the market to determine ground-floor character by permitting either residential or commercial uses while establishing a built form that ensures neighborhood compatibility [Section 17.21.030].
The general character of the NC-Flex zone is informed by existing conditions within historic neighborhoods, such as the South Auburn corridor. Key attributes include:
- Flexibility of Use: Unlike some core commercial zones, the NC-Flex zone allows residential or commercial uses on the ground floor [Section 17.21.030].
- Pedestrian Connectivity: The zone supports medium-to-high density housing to help support neighborhood centers and promote a walkable environment [Section 17.21.030].
- Specific Frontages: Building frontages are expected to vary based on existing conditions, typically between zero and 12 feet from the property line [Section 17.21.030].
Building Placement and Form Standards
Buildings within the NC-Flex zone must comply with specific placement and form standards to maintain the desired traditional community character.
NC-Flex Development Standards
| Feature | Standard |
|---|---|
| Front Build-to Line (BTL) | 12' (May align with adjacent if <12') |
| Side Street BTL (Corner Lot) | 8' |
| Side Setback | 3' minimum; 10' maximum |
| Rear Setback (Adj. to Residential) | 10' |
| Rear Setback (Adj. to Other Use) | 5' |
| Primary Street Built to BTL | 60% minimum |
| Side Street Built to BTL | 30% minimum |
| Maximum Lot Width | 75' |
| Maximum Lot Depth | 150' |
| Minimum Building Height | 16' |
| Maximum Building Height | 2.5 stories or 30' |
| Maximum Ancillary Height | 2 stories or 25' |
Note: Street facades must be built to the BTL within 30 feet of every corner [Section 17.21.060].
Permitted Land Uses
The City of Grass Valley Neighborhood Center Flex (NC-Flex) zone permits a wide array of residential, retail, and service-oriented uses.
Residential Uses
- Permitted (P): Duplexes, triplexes, fourplexes, rowhouses, single-family dwellings, home occupations, live/work units, mixed-use residential components, and accessory dwelling units (ADUs) [Table 2.3].
- Conditional: Residential care for 7 or more clients requires a Use Permit (UP) [Table 2.3].
Retail and Services
- Permitted (P): Cottage food, general retail (under 10,000 sf), ATM, business support services, medical services (clinic, urgent care, or doctor office), and professional/administrative offices [Table 2.3].
- Minor Use Permit (MUP): Health/fitness facilities, alcoholic beverage sales, antique/collectable stores, on-site production of items sold, neighborhood markets, and restaurants or cafes [Table 2.3].
- Use Permit (UP): Bars, taverns, or nightclubs; retail stores over 10,000 sf; and businesses operating between 9:00 p.m. and 7:00 a.m. [Table 2.3].
Parking and Encroachments
Parking in the NC-Flex zone is regulated by location to ensure it does not dominate the streetscape.
| Parking Standard | Requirement |
|---|---|
| Front Setback | 20' |
| Side Setback | 0' |
| Side Street Setback | 5' |
| Rear Setback | 5' |
| Parking Drive Width | 12' maximum |
| Residential Parking Ratio | 1 space/unit; 0.5 space/studio |
| Other Uses Ratio | 1 space/300 sf |
Note: On corner lots, the primary parking drive shall not be located on the primary street [Section 17.21.060].
Allowed encroachments into the public realm or setbacks in the NC-Flex zone include:
- Front Encroachment: 12' maximum.
- Side Street Encroachment: 8' maximum.
- Rear Encroachment: 5' maximum.
- Allowed Features: Porches, balconies, and bay windows may encroach over the BTL on street sides [Section 17.21.060].
Sections Cited
- Section 17.21.030 – Purposes of the traditional community development zones.
- Section 17.21.060 – Neighborhood Center-Flex (NC-Flex) Standards.
- Table 1-1 – Zones.
- Table 2.3 – Neighborhood Center-Flex (NC-Flex) Zone Allowed Land Uses and Permit Requirements.