Nevada County — Zoning

Last reviewed: July 6, 2026

Overview

Nevada County’s Zoning Ordinance is codified as Title 12 – Zoning Regulations and it governs only the unincorporated areas of the county. It divides land into base zoning districts with optional “combining” (overlay) districts, and ties each district to allowable uses, review processes, and site development standards. The ordinance is the primary local tool to implement the General Plan and applies in addition to state law and other county codes. See the county’s zoning framework in Title 12 and its applicability to unincorporated areas in § 12.01.010 and § 12.01.020 .

Most zoning questions in unincorporated Nevada County reduce to one rule: your project must meet both the base district rules and any combining district standards mapped on your parcel (§ 12.02.010.B), and it must use the permit pathway shown in the Allowable Uses tables for that district (§ 12.02.010.C; § 12.05.010) .

Use this page together with the county’s high-level zoning & planning overview, its Land Use summaries, and its Development Standards guide.

How the Nevada County zoning system is organized (unincorporated areas)

• Title: Nevada County Zoning Ordinance (Title 12 – Zoning Regulations) (§ 12.01.010) .
• Applicability: All land use and development in unincorporated areas must comply; uses must be allowed in the applicable zoning district(s), meet development standards, and obtain the listed permit(s) (§ 12.01.020) .
• Districts: The official list of base and combining districts (symbols include RA, R1, R2, R3; AG, AE, FR, TPZ; C1, C2, C3, CH, OP; M1, M2, BP; IDR, OS, PD, P, REC; and combining AI, HP, ME, MH, PD, PSAA, SC, SP, X) is established in § 12.02.010.A .
• How to read the code: For each category, use the Allowable Uses and Permit Requirements Tables to find whether a use is Allowed (A), needs a Development Permit (DP), or a Use Permit (UP). Tables also point to any “Specific Land Use Standards” in Chapter 12.03 and to the “Site Development Standards” in Chapter 12.04 (§ 12.02.010.B–C) .
• Permits and review bodies: Zoning Compliance; Administrative Development Permit; Development Permit; Use Permit (§ 12.05.010). Zoning Compliance procedures are in § 12.05.040 . Many projects also require design review under countywide or area guidelines (§ 12.04.103) .

Base Zoning Districts — District-by-District

Below are the districts listed in § 12.02.010.A, with their purpose, common use permissions, and where key numbers live in Title 12. Where numeric standards are not shown here, find them in the district’s Site Development Standards table and Chapter 12.04 for setbacks, height, parking, landscaping, signage, and resource constraints (§ 12.02.010.B; § 12.04.104; § 12.04.140; § 12.04.150; § 12.04.180; § 12.04.190; § 12.04.210) .

RA — Residential Agricultural

• Purpose and intensity: Low-density single-family and other dwelling types in rural character; densities equivalent to a 1.5-acre minimum parcel size, or 3 acres where no public water/sewer is available (§ 12.02.021.A.1) .
• Typical permitted uses: Single-family homes (A); duplex/duet/four-plex (A); multi-family with a Use Permit (UP) per § 12.03.170; ADUs/JADUs (A) referencing § 12.03.191; home businesses (A) (§ 12.02.210.B; § 12.03.170) . Wineries/tasting rooms may be allowed with limits (§ 12.03.240) .
• Key dimensional standards: Use the applicable Site Development Standards table and the countywide development standards for height, setbacks, lot frontages, and impervious surface (§ 12.04.104; § 12.04.140; § 12.04.190) .

R1 — Single-Family

• Purpose and intensity: Urban single-family designation; allows single-family, duplexes/duets/four-plexes up to 4 units/acre (§ 12.02.021.A.2) .
• Typical permitted uses: Single-family (A); duplex/duet/four-plex (A); multi-family with UP per § 12.03.170; ADUs/JADUs (A) (§ 12.02.210.B; § 12.03.170) . A second primary dwelling may qualify for ministerial approval in limited R1 locations consistent with state law (§ 12.03.193) — see California housing laws and California ADU law for background .
• Key dimensional standards: Refer to the applicable Single-Family Site Development Standards table and Chapter 12.04 for setbacks, height, open space, parking, and signage (§ 12.04.104; § 12.04.140; § 12.04.180; § 12.04.210) .

R2 — Medium Density (Multi-Family)

• Purpose and intensity: Urban medium density; up to 8 du/ac within incorporated areas’ spheres of influence, 6 du/ac elsewhere (§ 12.02.022.A.1) .
• Typical permitted uses: Multi-family with a Development Permit (DP) (§ 12.03.170.B); Single-Room Occupancy by UP (§ 12.03.171.C) .
• Key dimensional standards (selected):
  • Front setback: 20 ft from ROW (≥50 ft ROW); 45 ft from centerline if ROW <50 ft (§ 12.04.140)
  • Max height: 35 ft or 3 stories, whichever is less (§ 12.04.104)
  • Max impervious surface: 50% (§ 12.04.190)
  • Minimum parcel size varies by services: 10,000 sf (public water and sewer); 1.5 acres (public water or sewer); 3 acres (private water and sewer) (§ 12.04.030.E.4.c) .

R3 — High Density (Multi-Family)

• Purpose and intensity: Urban high density; up to 20 du/ac in spheres of influence, 15 du/ac elsewhere (§ 12.02.022.A.2) .
• Typical permitted uses: Multi-family with DP (§ 12.03.170.B); SRO by UP (§ 12.03.171.C) .
• Key dimensional standards (selected): Same setback references as R2; max height 35 ft or 3 stories; max impervious surface 60%; same utility-based minimum parcel sizes (§ 12.04.140; § 12.04.104; § 12.04.190; § 12.04.030.E.4.c) .

AG — General Agricultural

• Purpose: Farming, ranching, agricultural support and compatible low-intensity uses; agriculture is primary (§ 12.02.030.B.1) .
• Typical permitted uses: Agriculture and support uses per district table; wineries/tasting rooms may be allowed subject to standards (§ 12.03.240) . Multi-family may be allowed by UP if density and siting criteria are met (§ 12.03.170.A) .
• Key dimensional standards: See Rural Districts Site Development Standards (§ 12.02.030.C) and Chapter 12.04 for setbacks/height/impervious surface (§ 12.04.104; § 12.04.140; § 12.04.190) .

AE — Exclusive Agricultural

• Purpose: Preserve and protect important commercial agricultural lands; agriculture is primary; incompatible uses not permitted (§ 12.02.030.B.2) .
• Typical permitted uses: Agriculture and listed support uses per table; wineries/tasting rooms per standards (§ 12.03.240) .
• Key dimensional standards: See § 12.02.030.C and Chapter 12.04 (as above) .

FR — Forest

• Purpose: Protect, produce, and manage timber; allow timber support uses, low-intensity recreation, and open space (§ 12.02.030.B.3) .
• Typical permitted uses: Forestry and compatible support per table; wineries/tasting rooms per standards (§ 12.03.240) .
• Key dimensional standards: See § 12.02.030.C and Chapter 12.04 (as above) .

TPZ — Timberland Production Zone

• Purpose: Conform to the Forest Taxation Reform Act; land is devoted to growing and harvesting timber and compatible uses (§ 12.02.030.B.4) .
• Typical permitted uses: Timber production and compatible uses per district table; note that farm stands and certified farmers’ markets are prohibited in TPZ by specific-use standards (section number not visible in retrieved export; standard acknowledged) — Not found in retrieved materials for § number .
• Key dimensional standards: See § 12.02.030.C and Chapter 12.04 (as above) .

C1 — Neighborhood Commercial

• Purpose: Neighborhood-serving retail and services; small-scale mixed use clustered to avoid strip development (§ 12.02.040.B.1) .
• Typical permitted uses: Retail, services per table; light industrial components are limited and must be subordinate to commercial per § 12.02.040.C .
• Key dimensional standards: See Table 12.02.040.E for setbacks, height (generally 45 ft or 3 stories for C1/C3/OP), impervious surface, and minimum parcel size (§ 12.02.040.E; § 12.04.140; § 12.04.104; § 12.04.190) .

C2 — Community Commercial

• Purpose: Wider range of community-serving retail and services (§ 12.02.040.B.2) .
• Typical permitted uses: Community-scale retail/services per table; SROs allowed by UP in C1/C2 (§ 12.03.171.C) .
• Key dimensional standards: See Table 12.02.040.E; height up to 45 ft (§ 12.04.104); check setbacks and minimum parcel size (7,000 sf shown for C2) (§ 12.02.040.E) .

C3 — Service Commercial

• Purpose: Specialized service/repair uses with extensive storage; controlled access to arterials (§ 12.02.040.B.3) .
• Typical permitted uses: Service/repair and related storage per table; no stand-alone warehousing unrelated to a primary on-site commercial use (§ 12.02.040.C) .
• Key dimensional standards: As in Table 12.02.040.E and Chapter 12.04 (§ 12.04.140; § 12.04.104; § 12.04.190) .

CH — Highway Commercial

• Purpose: Highway- and tourist-oriented services; contiguous center design with controlled access (§ 12.02.040.B.4) .
• Key dimensional standards: See Table 12.02.040.E (45 ft height for C2/CH) and Chapter 12.04 (§ 12.04.104; § 12.04.140) .

OP — Office Professional

• Purpose: Professional/administrative offices compatible with nearby residential (§ 12.02.040.B.5) .
• Key dimensional standards: See Table 12.02.040.E (C1/C3/OP height = 45 ft or 3 stories) and Chapter 12.04 for setbacks/parking/signage (§ 12.04.104; § 12.04.140; § 12.04.180; § 12.04.210) .

M1 — Light Industrial

• Purpose: Production/repair/distribution/warehousing with buffering and controlled arterial access (§ 12.02.050.B.2) .
• Typical permitted uses: Industrial uses per Table 12.02.050.D; accessory commercial typical to industry (§ 12.02.050) .
• Key dimensional standards: Refer to district table and Chapter 12.04 for setbacks, height, parking, and impervious surface (§ 12.04.104; § 12.04.140; § 12.04.180; § 12.04.190) .

M2 — Heavy Industrial

• Purpose: Similar to M1 but for more intensive uses with potentially greater impacts (§ 12.02.050.B.3) .
• Standards: See Table 12.02.050.D (allowable uses) and Chapter 12.04 for site standards (same sections as M1) .

BP — Business Park

• Purpose: Campus-like settings for light industry, R&D, and related uses (§ 12.02.050.B.1) .
• Special rule: A Comprehensive Master Plan is required before site development outside an adopted Area Plan (§ 12.02.050.C.1) .
• Interim/minor uses: Limited interim uses and minor improvements may be allowed before a CMP under the conditions in § 12.02.050.C.3–4 and Table 12.02.050.D .

IDR — Interim Development Reserve

• Purpose: Temporary holding zone for lands planned for Planned Development or Special Development Areas until specific plans and rezonings are adopted (§ 12.02.060.B.1) .
• Typical permitted uses: Selected residential, civic, and accessory uses per Table 12.02.060.F (e.g., single-family and ADUs as Allowed) (§ 12.02.060.F) .
• Selected site standards: Front yard 20 ft (≥50 ft ROW) or 45 ft to centerline (<50 ft ROW); max height 45 ft or 3 stories; max impervious 10% (§ 12.02.060.G; § 12.04.140; § 12.04.104; § 12.04.190) .

OS — Open Space

• Purpose: Open space conservation with very limited development (§ 12.02.060) — see Table 12.02.060.F/G for allowed uses and standards .
• Selected site standards: Front yard 45 ft to centerline (<50 ft ROW); max impervious 5% (§ 12.02.060.G; § 12.04.140; § 12.04.190) .

PD — Planned Development (base district)

• Purpose: Implement specific plan/PD programs; see § 12.02.060.C for PD base district standards (site/uses set by PD plan and zoning map references) (§ 12.02.060) .
• Standards/uses: See § 12.02.060.C and the project’s adopted PD plan; note cross-references in the special purpose tables (§ 12.02.060.F–G) .

P — Public

• Purpose: Public and quasi-public facilities (allowable uses and standards in § 12.02.060.F–G) .
• Selected site standards: Front yard 45 ft to centerline (<50 ft ROW); max impervious 85% (§ 12.02.060.G) .

REC — Recreation

• Purpose: Public/private recreation areas (standards and uses in § 12.02.060.F–G) .
• Selected site standards: Front yard 20 ft (≥50 ft ROW) or 45 ft to centerline (<50 ft ROW); max impervious 10% (20% if parcel <5 acres) (§ 12.02.060.G; n.6) .

Combining (Overlay) Districts

Combining districts overlay base districts and apply additional constraints and/or allowances. Official overlays include AI, HP, ME, MH, PD, PSAA, SC, SP, and X (§§ 12.02.071–12.02.079). Projects must comply with both base and combining district standards (§ 12.02.010.B). Historic resources in the HP overlay trigger specialized review standards and may rely on historic district guidelines instead of certain area design guidelines (§ 12.04.103) — see Historic Preservation and Overlay Districts for context .

Decision-relevant tables (selected)

Table 1 — Residential district intensities and typical permissions (unincorporated areas)

• Use this with the district Allowable Uses tables and Chapter 12.04 development standards.

Table 2 — Selected commercial site development standards

• See the full Commercial Districts Site Development Standards table for all columns and footnotes.

Table 3 — Special Purpose districts: selected site development standards

• For complete rows (including road frontage and utility-driven lot sizes), see § 12.02.060.G.

Other countywide standards you will cross-reference

• Building height measurement and limits: § 12.04.104; height caps by district appear in the district tables .
• Setbacks and yards: § 12.04.140; commercial/industrial/residential tables reference this section .
• Open space and maximum impervious surfaces: § 12.04.110 and § 12.04.190 .
• Parking: see the On-Site Parking tables (referenced throughout as § 12.04.180) and the standalone Parking page.
• Landscaping/screening and fencing: § 12.04.150 and § 12.04.111; also see Landscaping and Screening .
• Signage: § 12.04.210 and the Signage topic.
• Design review: § 12.04.103 and adopted area guidelines such as Eastern Nevada County, Higgins, Penn Valley, Loma Rica, North San Juan, and Soda Springs; see Design Review .

Using the zoning map and interpreting boundaries (unincorporated areas)

The official zoning district maps implement the districts above. The ordinance explains how to interpret zoning boundaries (e.g., boundaries following parcel lines, centerlines of ROWs, or physical features; and how to handle split-zoned parcels so the potential lot count is the sum across districts, rounded down to a whole number). These map-interpretation rules appear under Zoning District Boundary in Title 12; exact § number was not visible in the retrieved export — Not found in retrieved materials .

Permit pathways and relief

• Permit types: Zoning Compliance, Administrative Development Permit, Development Permit, and Use Permit (§ 12.05.010) . Zoning Compliance procedures are in § 12.05.040 .
• Variances: Findings include special circumstances, no special privilege, minimum departure, and consistency with the General Plan (§ 12.05.070 as referenced throughout the code) — see Variances and Exceptions .
• Minor changes to approved projects: Limited director-level modifications are allowed under § 12.05.080 .
• Nonconforming uses and structures: Allowed to continue subject to ordinance rules; see Nonconforming Uses and § 12.01.020.A.2 for legality language .

Information Gaps

• District-specific numeric setbacks and coverage for RA, R1, AG, AE, FR, and TPZ: Not found in retrieved materials (refer to the district Site Development Standards tables and § 12.04.140/§ 12.04.190).
• Full text of combining district standards (AI, HP, ME, MH, PD, PSAA, SC, SP, X): Not found in retrieved materials (refer to §§ 12.02.071–12.02.079).
• Zoning District Boundary section number (map interpretation): Not found in retrieved materials (text retrieved but no § number visible) .
• Any external official zoning map URL: Not found in retrieved materials. Verify with the jurisdiction.

Checklist

• Confirm your parcel’s base district(s) and any combining (overlay) districts on the official zoning map.
• Identify your proposed use in the district’s Allowable Uses and Permit Requirements table and note whether it is A, DP, or UP (§ 12.02.010.B–C) .
• Check any “Specific Land Use Standards” in Chapter 12.03 (e.g., wineries, SROs, multi-family, ADUs) that apply to your use (§ 12.03.170; § 12.03.171; § 12.03.191–12.03.193; § 12.03.240) .
• Verify site development standards: setbacks (§ 12.04.140), height (§ 12.04.104), impervious surface/open space (§ 12.04.110; § 12.04.190), parking (§ 12.04.180), fencing/screening (§ 12.04.150; § 12.04.111), and signage (§ 12.04.210) .
• Determine if your project is subject to design review (§ 12.04.103) or falls under an area plan with adopted design guidelines (e.g., Eastern Nevada County, Higgins, Penn Valley, Loma Rica, North San Juan, Soda Springs) .
• If split-zoned or near a boundary, apply the map-interpretation rules and confirm with Planning (Zoning District Boundary rules — Not found in retrieved materials for § number) .
• If proposing housing, also confirm any state streamlining or ministerial pathways that may apply (e.g., § 12.03.193; see California housing laws and California ADU law) .
• Coordinate early with Environmental Health on water/sewer assumptions; minimum lot sizes in several tables depend on utility type (§ 12.04.030.E.4.c) .

Risks & Ambiguities

Plain-English Summary

In unincorporated Nevada County, your zoning is the combination of a base district (like RA, R1, R2, C1, M1) and any mapped overlays (like HP or SC). Each district’s table shows if your use is allowed outright (A) or needs a Development Permit (DP) or Use Permit (UP), and Chapter 12.04 sets the numbers for height, setbacks, parking, and open space. For housing, R2 and R3 allow multi-family at 6–8 and 15–20 units/acre (depending on location), while RA and R1 are lower-density; ADUs are broadly allowed subject to state and local standards. When in doubt, check the tables, the Development Standards, and whether an overlay or design review applies.

Source References

• Title 12 – Zoning Regulations; Authority, Applicability (§ 12.01.010; § 12.01.020)
• Zoning Districts established (§ 12.02.010) and how to use district tables (§ 12.02.010.B–C)
• Residential districts (§ 12.02.020–§ 12.02.022); RA/R1 purpose and uses (§ 12.02.021; Table 12.02.210.B); R2/R3 densities (§ 12.02.022)
• Multi-family, SROs, and related standards (§ 12.03.170; § 12.03.171)
• Rural districts purposes (§ 12.02.030.B); Rural district standards references (§ 12.02.030.C)
• Wineries standards (§ 12.03.240)
• Commercial districts purposes and limits (§ 12.02.040.B–C); Commercial Site Development Standards (Table 12.02.040.E)
• Industrial districts purposes and BP master plan rule (§ 12.02.050.B–C; Table 12.02.050.D)
• Special Purpose districts uses/standards (Tables 12.02.060.F–G)
• Development standards: Height (§ 12.04.104); Setbacks (§ 12.04.140); Open space/impervious (§ 12.04.110; § 12.04.190); Parking (§ 12.04.180); Screening/Landscaping (§ 12.04.111; § 12.04.150); Signs (§ 12.04.210)
• Permits and procedures (§ 12.05.010; § 12.05.040; § 12.05.080; § 12.05.090)

Retrieved passages

• Nevada County Zoning Code (Section 12.01.020) High relevance show source text
• Nevada County Zoning Code (Chapter and) High relevance show source text
• Nevada County Zoning Code (Section 12.01.050) High relevance show source text
• Nevada County Zoning Code (§ 51112) High relevance show source text
• Nevada County Zoning Code (Section 12.04.104) Medium relevance show source text
• Nevada County Zoning Code (Section 12.04.210.K) Medium relevance show source text
• Nevada County Zoning Code (Title 14) Medium relevance show source text
• CBC § 12.05.090 (Section 12.05.090) Medium relevance show source text
• Nevada County Zoning Code (Section 12.02.060.C) High relevance show source text
• Nevada County Zoning Code (Section governing) High relevance show source text
• CBC § 65852.24 (Section 12.03.170) High relevance show source text
• Nevada County Zoning Code (Section 12.04.140.F.) High relevance show source text
• Nevada County Zoning Code (Section 12.05.050) Medium relevance show source text
• CBC § 12.03.180 (Section 12.03.180) Medium relevance show source text
• Nevada County Zoning Code (Section 12.02.040) Medium relevance show source text
• Nevada County Zoning Code (TITLE 12.) Medium relevance show source text
• Nevada County Zoning Code (Section 12.05.050) Medium relevance show source text
• Nevada County Zoning Code (Section 12.02.020) Medium relevance show source text
• Nevada County Zoning Code (§ 65852.2) Medium relevance show source text
• Nevada County Zoning Code (Section 12.04.180.F) Medium relevance show source text

Cited sections

• Title 12 – Zoning Regulations; Authority, Applicability (§ 12.01.010; § 12.01.020) (Title 12)
• Zoning Districts established (§ 12.02.010) and how to use district tables (§ 12.02.010.B–C) (§ 12.02.010)
• Residential districts (§ 12.02.020–§ 12.02.022); RA/R1 purpose and uses (§ 12.02.021; Table 12.02.210.B); R2/R3 densities (§ 12.02.022) (§ 12.02.020)
• Multi-family, SROs, and related standards (§ 12.03.170; § 12.03.171) (§ 12.03.170)
• Rural districts purposes (§ 12.02.030.B); Rural district standards references (§ 12.02.030.C) (§ 12.02.030.B)
• Wineries standards (§ 12.03.240) (§ 12.03.240)
• Commercial districts purposes and limits (§ 12.02.040.B–C); Commercial Site Development Standards (Table 12.02.040.E) (§ 12.02.040.B)
• Industrial districts purposes and BP master plan rule (§ 12.02.050.B–C; Table 12.02.050.D) (§ 12.02.050.B)
• Special Purpose districts uses/standards (Tables 12.02.060.F–G)
• Development standards: Height (§ 12.04.104); Setbacks (§ 12.04.140); Open space/impervious (§ 12.04.110; § 12.04.190); Parking (§ 12.04.180); Screening/Landscaping (§ 12.04.111; § 12.04.150); Signs (§ 12.04.210) (§ 12.04.104)
• Permits and procedures (§ 12.05.010; § 12.05.040; § 12.05.080; § 12.05.090) (§ 12.05.010)
• NevadaCounty_ZoningCode.md

• Official Nevada County code library