Grass Valley Historical (H) Combining Zone Regulations
The Historical (H) combining zone in the City of Grass Valley protects cultural resources and the 1872 Historic Townsite by requiring specialized Historic Review for nearly all exterior construction, modifications, and signage. Development must strictly adhere to the "Design Manual, Downtown Historic Area," which mandates the use of traditional materials, specific historic color palettes, and the "stealth" concealment of modern utilities like telecommunications equipment.
Purpose and Applicability
The City of Grass Valley established the Historical (H) combining zone to identify and preserve important cultural resource sites and structures. It ensures that any proposal to alter these sites is carefully considered prior to implementation [Section 17.28.040.A].
The requirements of this overlay district apply to all proposed construction, demolition, exterior alterations, additions, and modifications of structures or signs within the City of Grass Valley Historical (H) combining zone [Section 17.28.040.B].
Historic Review and Permits
In most cases, a building permit for new construction or exterior modifications cannot be issued until the project undergoes an "Historic Review" to ensure compliance with the city's historic standards [Section 17.28.040.C.1].
Exempt Activities
Certain minor activities are exempt from the full review process, provided they are reviewed by the department to ensure compliance:
- Repainting a structure or sign using colors from a paint company's approved historic color palette [Section 17.28.040.C.2.a].
- Modifications that expose or restore original architectural features (e.g., windows, openings, or exterior materials) [Section 17.28.040.C.2.c].
- Specific small-scale signage, such as door signs that only include a small logo, business name, and hours [Section 17.28.040.C.2.b.vi].
Architectural and Dimensional Standards
Buildings and structures within the City of Grass Valley Historical (H) combining zone must conform to specific dimensional requirements, particularly for features extending over public property.
| Structure Type | Maximum Projection | Minimum Vertical Clearance |
|---|---|---|
| Awnings | 7 feet from building face (must remain 2 feet back from curb line) | 8 feet above public walkways |
| Marquees, Canopies, and Unroofed Porches | May not extend beyond the curb line | 9 feet above paved roadway or sidewalk |
| Posts (Supporting Canopies/Porches) | Must be at least 1 foot back from the curb line | N/A |
All marquees, canopies, and unroofed porches must be equipped with gutters and downdrains concealed within supports or walls to drain under walkways [Section 17.28.040.D.1].
Signage Regulations
Signage in the Historical (H) combining zone is highly regulated to maintain the aesthetic integrity of the district. The City of Grass Valley requires that sign materials and scales be representative of the primary on-site structures [Section 17.38.060.F.3].
Prohibited and Restricted Signs
- Prohibited: Digital monument signs and internally illuminated canopy signs are strictly prohibited in the Historical (H) combining zone [Section 17.38.050.B.5].
- Neon: The use of neon window signs is prohibited. Other neon signage is generally prohibited on historical buildings unless designed to accommodate specific historic building periods [Section 17.38.080.G.2].
- A-Board/Pedestal Signs: These must be made of wood or chalkboard with wood framing. They may be painted in colors consistent with a manufacturer’s historic color palette. Whiteboard and plastic materials are prohibited [Section 17.38.080.N.11].
Design Standards for Signs
- Location: No signs may be located above an awning unless they previously existed [Section 17.28.040.C.2.b.v].
- Materials: Suspended signs must be at least 3/4-inch MDO, wood, or similar material and include a trim element [Section 17.28.040.C.2.b.ii].
- Lighting: External light sources must be shielded to prevent glare off-site [Section 17.38.060.H.1].
Telecommunications and Modern Utilities
The City of Grass Valley enforces strict "stealth" requirements for wireless facilities within the Historical (H) combining zone:
- Facilities must be designed to be entirely stealth, meaning all antennas, equipment cabinets, and transmission apparatus must be completely hidden from view [Section 17.46.060.H].
- Wireless facilities are prohibited on any building or structure defined as a "contributing building" to the historic district [Section 17.46.060.H].
Historic Resource Designations
The city classifies resources within the Historical (H) combining zone into two categories to determine the level of protection required:
- Contributing Historical Resources: These are the most unique and important resources (rated as Priority 1 or 2) in terms of age, architectural significance, or association with the city's past [Section 17.52.050.A].
- Non-Contributing Resources: These are typically less than fifty years old or have not retained their original architectural character (rated as Priority 3 or 4) [Section 17.52.050.B].
Sections Cited
- Section 17.28.040 - Historical (H) combining zone.
- Section 17.38.050 - Prohibited signs.
- Section 17.38.060 - General requirements for all signs.
- Section 17.38.080 - Standards for specific sign types.
- Section 17.46.060 - Facility design and development standards (Telecommunications).
- Section 17.50.010 - Findings and purpose (Creek Protection referencing Historic Townsite).
- Section 17.52.050 - Historic resource designation.