Placer County Zoning, Planning & Building Codes

Last reviewed: July 6, 2026

Overview

Placer County regulates land use in its unincorporated areas through the Placer County Zoning Ordinance, codified as Chapter 17 of the Placer County Code. Chapter 17 implements the County’s General Plan and community plans, and governs what can be built where, how tall, and with what review, alongside Placer County Land Use policy documents. The ordinance applies across the unincorporated areas, except where adopted community or area plans and implementing regulations take precedence (e.g., Tahoe Basin Area Plan and specific plan appendices) per § 17.02.030 . Development must comply with base zoning plus any combining (overlay) districts, the countywide development standards, and applicable specific plan rules before building permits are issued (§ 17.02.030(B)) .

Placer County will not issue a building permit unless the proposed land use and construction comply with Chapter 17 and any required land use approvals have been obtained (§ 17.02.030(B)) .

How Placer County’s code is organized

Use this roadmap to navigate Chapter 17 (Placer County Zoning Ordinance):

• Title and applicability. Chapter 17 is the “Placer County Zoning Ordinance.” It applies to unincorporated areas, and must be consistent with the General Plan and community plans (§§ 17.02.010–.030) .
• Districts and use tables. Base zone and combining districts are created in § 17.06.010; allowable uses, permits and basic standards by zone are in §§ 17.06.030 and 17.06.060 et seq. .
• General development standards. Countywide rules for height, setbacks, minimum parcel size, landscaping, signage, and parking live in Article 17.54; height measurement and exceptions are in § 17.54.020 and setbacks are organized in § 17.54.130, with special and exception rules beginning at § 17.54.140 .
• Specific use standards. Article 17.56 sets additional requirements for listed uses (e.g., ADUs, senior housing, surface mining) tied back to district tables (§ 17.06.030) .
• Discretionary permits and process. Article 17.58 covers application filing, staff review, hearings, and approvals for Administrative Review Permits (ARP), Minor Use Permits (MUP), and Conditional Use Permits (CUP) (§§ 17.58.020, 17.58.080–.190) .
• Administration, appeals, variances, nonconforming. Article 17.60 addresses roles (Planning Director, Zoning Administrator), appeals, variances, administrative approvals, and nonconforming uses (§§ 17.60.010–.110; 17.60.100; 17.60.105; 17.60.120) .

Zoning district families

Placer County’s base zone families (map codes) and combining (overlay) districts are established in § 17.06.010. The code divides districts into four groups, plus combining districts that sit “on top” of base zoning to address special conditions (e.g., flood, design, density) .

• Agricultural, Resource & Open Space
  • AE Agricultural Exclusive; F Farm; FOR Forestry; O Open Space; TPZ Timberland Production; W Water Influence (§ 17.06.010) .
• Residential
  • RA Residential-Agricultural; RF Residential-Forest; RM Multifamily Residential; RS Single-Family Residential (§ 17.06.010) .
• Commercial & Industrial
  • C1 Neighborhood Commercial; C2 General Commercial; C3 Heavy Commercial; HS Highway Services; OP Office & Professional; BP Business Park; IN Industrial; INP Industrial Park; AP Airport; MT Motel; RES Resort; CPD Commercial Planned Development (§ 17.06.010) .
• Specific Plan
  • SPL Specific Plan district—standards set by the adopted plan (§ 17.51.010) .

Combining (overlay) districts include -AG Agriculture; -AO Aircraft Overflight; -B Building Site; -UP Use Permit Required; -DL Density Limitation; -Dc/-Dh/-Ds Design Review; -DR Development Reserve; -FH Flood Hazard; -GH Geological Hazard; -MR Mineral Reserve; -PD Planned Residential Development; -SP Special Purpose; -TM Traffic Management (§ 17.06.010; § 17.52.010) .

Citywide development standards

Articles 17.54 and 17.56 supply countywide rules that apply in addition to each zone’s basic standards.

• Height and measurement. Height limits are set primarily in the zone chapters with common exceptions and measurement rules in § 17.54.020. Tahoe Basin height is measured per TRPA-based figures cross-referenced there .
• Setbacks. Setbacks are established by the zone and refined by § 17.54.130 and § 17.54.140 (exceptions and special scenarios). Additional watercourse setbacks and stream system boundaries are in § 17.54.145 .
• Minimum parcel size. See § 17.54.040; many zone chapters also restate parcel-size minimums by use/district (e.g., industrial park) .
• Landscaping and fencing. County landscaping/fencing standards are in § 17.54.030 (referenced from industrial districts) .
• Parking. Off-street parking standards and land-use parking ratios are organized in §§ 17.54.050–.060, which zones can incorporate or refine (see Planned Residential Development parking cross-reference) .
• Signage. Sign regulations, including heights, are in Article 17.54 beginning at § 17.54.170 (cross-referenced from § 17.54.020) .
• Nonconforming uses and structures. Continuation and alteration rules are in § 17.60.120 (referred to in § 17.02.030(E)) .

Illustrative examples from Placer County’s district standards:

• The RS district typically requires a 20 ft front setback, 10 ft street-side, side setbacks of 5 ft (1 story) or 7.5 ft (2+ stories), and caps lot coverage at 40% (§ 17.44/RS table excerpts) .
• The RA district applies 50/30/30/30 ft front/street-side/side/rear setbacks, 35% lot coverage, and 36 ft height (§ 17.44.010(E)) .
• The C2 district can allow 10 ft front setbacks (5 ft for signs), 0–5 ft sides and rear, up to 100% site coverage, with 50 ft height (§ 17.22.010(E)) .
• The IN district may allow no required setbacks, 60% coverage, and 50 ft height, subject to design review standards and adjacency rules (§ 17.40/IN notes) .
• The INP district sets 30 ft front, 15 ft street-side and most side yards, 10 ft rear, 50% coverage, 50 ft height (§ 17.42.010(E)) .
• The RES (Resort) district applies a 60 ft front setback and 10% site coverage maximum (§ 17.36/RES table excerpts) .
• The AP (Airport) district varies between aircraft-operation sites (50/30/30/30 ft; 15% coverage) and other uses (20/10/10/10 ft; 35% coverage), both with 36 ft height (§ 17.20/AP) .

Specific plans & overlays

• Specific Plan district. The SPL district enables custom zoning and standards adopted by a specific plan; the plan sets uses, setbacks, height, density, parking, etc. (§ 17.51.010), and the County’s specific plan procedures are in § 17.58.200 .
• Adopted area and specific plans. Chapter 17 includes appendices incorporating countywide plans that supersede or supplement zoning for designated areas (e.g., Tahoe Basin Area Plan; Bickford Ranch; Placer Vineyards; Regional University; Riolo Vineyards; Martis Valley West; Sunset Area Plan; Placer Ranch) (§ 17.02.030) . Tahoe Basin height and coverage rules also reference TRPA metrics in the zoning text (§ 17.54.020; RS notes) .
• Overlay Districts. Combining districts add rules countywide where mapped:
  • -FH Flood Hazard defers to the County Flood Damage Prevention Ordinance and controls over base zoning in conflicts (§ 17.52.090) .
  • -Dc/-Dh/-Ds Design Review requires design approval before exterior work or demolition; -Dh applies in historic contexts (§ 17.52.070(C)) .
  • -PD Planned Residential Development ties density and standards to § 17.54.080 and can vary standards (§ 17.52.120) .
  • -DL Density Limitation sets maximum dwelling units per acre, with interpolation and General Plan consistency (§ 17.52.060) .
  • -DR Development Reserve requires a specific plan before development in designated areas (§ 17.52.080) .
  • -MR Mineral Reserve ties to SMARA and mineral resource findings (§ 17.52.110) .

Building permits & review

• Zoning check and permit type. First, confirm your use is allowed and whether it needs zoning clearance, ARP, MUP, or CUP via the use tables (§ 17.06.030), then obtain any required land use permit before building (§ 17.02.030(A)(3)) .
• Zoning clearance for by-right uses occurs at building/grading permit intake (§ 17.06.040) .
• Applications. File per § 17.58.020–.040 with specified contents and fees; many projects hold a pre-development meeting with the Development Review Committee (DRC) (§ 17.58.015) .
• Staff review and hearings. DRC prepares a staff report (§ 17.58.070); ARPs/MUPs/CUPs are processed per §§ 17.58.080 and 17.58.100–.190, with CEQA review as applicable (§ 17.58.060) .
• Design review. In mapped design review areas, no building permit issues without design approval (§ 17.52.070(C)); the Design/Site Review Committee administers design approvals (§ 17.60.070) .
• Appeals and relief. Appeals are in § 17.60.110; variances proceed under § 17.60.100 (Gov. Code § 65906 findings), and minor relief can be granted administratively in § 17.60.105 (e.g., up to 10% parking reduction; modest height/setback adjustments) .
• Building code. Building, grading and other construction permits are issued under Chapter 15 and the California Building Standards Code; zoning ties directly to those requirements (§ 17.54.130(A)(5)) .

State housing law in Placer County

• ADUs and JADUs. Placer implements state ADU law (Gov. Code §§ 65852.2, 65852.22) in § 17.56.200. Highlights include at least one ADU within existing multifamily buildings (up to 25% of existing units), up to two detached ADUs on multifamily lots (≤16 ft tall), 4-ft side/rear setbacks for new detached ADUs, and multiple parking exemptions (e.g., within 0.5 miles of transit) (§ 17.56.200(E),(I)) .
• SB 9 two-unit and lot split pathways. RS district notes point to duplex/triplex/fourplex allowances either through local density programs or Gov. Code § 65852.21; applications must still satisfy objective standards (§ 17.54.120(E) references; RS notes) .
• Density bonus. The County implements State Density Bonus Law with a base maximum bonus of 50% for qualifying projects and offers potential supplemental local bonuses (§ 17.54.120(A)) .
• Rent regulation. Not found in retrieved materials. Verify with the jurisdiction.

Source References

• Placer County Zoning Ordinance, Ch. 17 — Title, applicability, and administration (§§ 17.02.010–.030; 17.60.010–.110) .
• Placer County Zoning — Zone and combining districts; use framework (§§ 17.06.010–.060) .
• Placer County Development Standards — General standards and measurement (§§ 17.54.010–.170+) .
• Placer County Overlay Districts — Design review, flood hazard, density, planned development (§§ 17.52.010–.140) .
• Placer County Design Review — Procedures and committees (§§ 17.52.070; 17.60.070) .
• Placer County Parking — Off-street parking standards and ratios (§§ 17.54.050–.060, cross-referenced in § 17.52.120) .
• California housing laws — Implemented locally via §§ 17.54.120, 17.56.200; RS notes citing Gov. Code § 65852.21 .
• California Building Standards Code — Referenced in setback and height provisions (§§ 17.54.020; 17.54.130(A)(5)) .