Local zoning · Placer County

Placer County — Zoning

Zoning under the Placer County local zoning and planning code, with the controlling citations.

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Last reviewed: July 6, 2026

Overview

Placer County’s zoning rules live in the Placer County Zoning Ordinance, Chapter 17 of the Placer County Code, and apply only in the unincorporated areas of the county. The ordinance implements the General Plan and community/specific plans through mapped base zones and combining (overlay) districts, with land uses and development standards keyed to each zone. Zoning boundaries are shown on the county’s adopted zoning maps; any change requires a rezoning ordinance.

The single most important rule: determine the property’s base zone and any combining (overlay) districts on the official zoning maps before designing a project; your allowed uses and standards flow from those mapped designations under § 17.06.030 and § 17.54.130.

Use this page together with the county’s zoning & planning overview, plus related topics like development standards, parking, design review, overlay districts, signage, nonconforming uses, variances and exceptions, and the California Building Standards Code.

How the ordinance is organized

  • Title and purpose. The zoning rules are Chapter 17, the “Placer County Zoning Ordinance.”
  • Applicability. Applies to unincorporated areas. Some places are governed by adopted Appendix standards (e.g., Tahoe Basin Area Plan, Placer Vineyards, Sunset Area Plan). Where those plans say otherwise, they can supersede Chapter 17.
  • Zoning maps. Districts are shown on zoning maps adopted by the Board; amendments use the ordinance rezoning process (§ 17.60.090).
  • Using the code. Allowed uses and permits are controlled by § 17.06.030 and the land use tables (§ 17.06.050), then by the zone’s own article and the general development regulations in Article 17.54.

Base zone districts in unincorporated Placer County

The county establishes the following base zones and map codes in § 17.06.010; each is summarized below with purpose, typical allowed uses (see § 17.06.050 for complete tables), and core dimensional standards.

Agricultural, Resource, and Open Space Districts

  • AE — Agricultural Exclusive (AE). Purpose: preserve important commercial agriculture “economic units.” Typical uses: crop production, animal raising, related agricultural support. Key standards: minimum lot area typically 20 acres, front 50 ft, sides/rear 30 ft, 10% coverage, 36 ft height; density one single-family dwelling per minimum lot. Where: prime ag areas countywide. § 17.08.010; standards for AE shown in Article 17.08 excerpts.
  • F — Farm (F). Purpose: accommodate commercial agriculture with low-density residential. Typical uses: crops, grazing, ag support; single-family dwellings allowed per density. Key standards: front 50 ft, sides/rear 30 ft, 25% coverage, 36 ft height; density one single-family dwelling per minimum lot area shown in the article. Where: agricultural valleys and foothills. § 17.10.010.
  • FOR — Forestry (FOR). Purpose: forest product production with compatible recreation. Key standards: front 50 ft, sides/rear 30 ft, 20% coverage, 36 ft height; minimum lot area 10 acres noted in article context. Where: mountainous/forested areas. § 17.12.010.
  • TPZ — Timberland Production (TPZ). Purpose: exclusive timber growing/harvest zone under the Forest Taxation Reform Act; rezoning criteria and management plan required. Typical uses: timber production, compatible ag/recreation, limited support uses. Key standards: front 50 ft, sides/rear 30 ft, coverage very low (1–2% depending on article excerpt), 25 ft height. Where: timberlands meeting state criteria; 10‑year restriction minimum. § 17.16.010.
  • O — Open Space (O). Purpose: protect open space with low-intensity ag/habitat/recreation. Typical uses: crop production, grazing, fisheries/wildlife habitat, parks/campgrounds by permit. Dimensional standards: Not found in retrieved materials; projects still must meet general setbacks and watercourse setbacks. Where: resource and habitat areas. § 17.14.010.
  • W — Water Influence (W). Purpose: water-oriented recreation/commercial uses where also allowed by the inland-adjacent zone. Typical uses: marinas, parks, communications facilities; pipelines/transmission lines. Dimensional standards: Not found in retrieved materials. Where: shorelines and waterway-adjacent parcels. § 17.18.010.

Commercial and Industrial Districts

  • AP — Airport (AP). Purpose: applied to public airport sites to ensure use compatibility with aviation. Typical uses: airport operations and compatible services. Key standards: Not found in retrieved materials. Where: public airport properties. § 17.36.010.
  • BP — Business Park (BP). Purpose/standards: Not found in retrieved materials. Where: employment centers. Not found in retrieved materials.
  • CPD — Commercial Planned Development (CPD). Purpose: master-planned commercial areas; setbacks and site design typically set by permit. Typical uses: retail/office/service per permit. Key standards: setbacks per CUP/MUP, 50% coverage, 50 ft height (with residential/mixed use coverage exemptions). Where: planned commercial centers. § 17.20 (article context) with CPD standards table.
  • C2 — General Commercial (C2). Purpose: community/regional-serving retail, services, office; typically along corridors. Typical uses: broad retail/service/office; residential allowed with commercial mixed-use standards. Key standards: front 10 ft (5 ft for signs), side/rear 0–5 ft, 100% coverage, 50 ft height; added 10 ft front/street-side setback for residential in commercial zones and for commercial abutting residential. Where: major transportation corridors. § 17.22.010 and C2 standards table.
  • C3 — Heavy Commercial (C3). Purpose: intensive, often nonretail service uses, some outdoor activity/storage allowed. Screening and adjacency limits apply. Key standards: Not found in retrieved materials. Where: industrial-serving corridors/areas. § 17.24.010.
  • HS — Highway Services (HS). Purpose/standards: Not found in retrieved materials.
  • IN — Industrial (IN). Purpose/standards: Not found in retrieved materials.
  • INP — Industrial Park (INP). Purpose: campus/park-style industrial and office/light manufacturing. Key standards: front 30 ft, street-side 15 ft, side 15 ft, rear 10 ft, 50% coverage, 50 ft height; additional buffers where abutting residential (e.g., 50 ft side/rear). Where: industrial/employment areas. § 17.34 (article context) with INP standards table.
  • MT — Motel District (MT). Purpose/standards: Not found in retrieved materials.
  • C1 — Neighborhood Commercial (C1). Purpose: small-scale day‑to‑day neighborhood retail/services compatible with nearby housing. Typical uses: groceries, personal services, schools/community facilities by permit; mixed-use/live‑work allowed by permit. Key standards: Not found in retrieved materials. Where: neighborhood nodes. § 17.30.010.
  • OP — Office and Professional (OP). Purpose: professional/administrative offices and personal services, designed to be compatible near residential. Key standards: Not found in retrieved materials. Where: office districts at neighborhood edges/corridors. § 17.32.010.
  • RES — Resort (RES). Purpose: resort/recreation lodging and related uses in planned resort settings. Key standards (examples): front 60 ft (5 ft for signs), street‑side 15 ft, side/rear 15–30 ft depending on lot size, 10% coverage, 36 ft height; multifamily density by Article 17.54/17.56. Where: resort areas designated by plan/zoning maps. § 17.28 (article context) with RES standards table.

Residential Districts

  • RA — Residential-Agricultural (RA). Purpose: stabilize rural-residential with compatible agriculture. Typical uses: single-family dwellings, ag accessory, animal raising per § 17.56.050. Key standards: front 50 ft, street-side 30 ft, side/rear 30 ft, 35% coverage, 36 ft height; density one unit per minimum lot area. Where: rural residential areas. § 17.44.010.
  • RF — Residential-Forest (RF). Purpose: rural residential living in forested/mountain/foothill settings. Key standards: front 50 ft, street-side 30 ft, side/rear 30 ft, 10% coverage, 36 ft height; density one unit per minimum lot. Where: foothill/mountain tracts. § 17.46.010.
  • RS — Single-Family Residential (RS). Purpose: conventional single-family neighborhoods. Typical uses: single-family dwellings; duplex/triplex/fourplex only with density bonus or state SB 9/two‑unit lot rules per § 17.54.120(E) and Gov. Code § 65852.21. Key standards: front 20 ft, street‑side 10 ft, sides 15 ft total (min 5 ft one‑story; 7.5 ft two‑story), rear 10–20 ft depending on stories, 40% coverage; height generally 30–36 ft with Tahoe Basin exceptions. Where: established/planned neighborhoods. RS standards appear in the RS article under § 17.06.060 et seq., with cross‑references to § 17.54.140 and Tahoe rules.
  • RM — Residential Multifamily (RM). Purpose: attached housing types near services/transit. Typical uses: apartments/condos, halfplexes, mobile home parks (by permit), mixed-use/live‑work (by permit), emergency shelters per § 17.56.295, ADUs/JADUs per § 17.56.200. Dimensional standards: Not found in retrieved materials; density and site design are controlled by Article 17.54 and § 17.56. Where: higher‑density residential areas identified by plan. § 17.48.010.

Specific Plan District

  • SPL — Specific Plan (SPL). Purpose: implement adopted specific plans; uses and standards are per each plan’s development standards (see the Appendices list). Where: areas with adopted specific plans (e.g., Placer Vineyards, Sunset Area Plan). § 17.06.010; § 17.02.030.

Selected quick facts for common zones

District Typical uses Key dimensional standards Code reference
RS Single-family; ADUs/JADUs per § 17.56.200 Front 20 ft; street-side 10 ft; sides 15 ft total (min 5/7.5 ft); rear 10/20 ft; coverage 40%; height 30–36 ft (Tahoe exceptions) § 17.06.060 et seq.; RS table; § 17.54.140 notes; Tahoe references in § 17.04.030
RA Rural residential with agriculture Front 50 ft; street-side 30 ft; side/rear 30 ft; coverage 35%; height 36 ft § 17.44.010; RA table
RF Rural residential in forested settings Front 50 ft; street-side 30 ft; side/rear 30 ft; coverage 10%; height 36 ft § 17.46.010; RF table
C2 General retail/services, office; mixed-use Front 10 ft, side/rear 0–5 ft, coverage 100%, height 50 ft; added setbacks for residential in commercial zones and for commercial abutting residential § 17.22.010; C2 table notes (setback qualifiers)
INP Industrial park/light industrial campus Front 30 ft; street-side 15 ft; side 15 ft; rear 10 ft; coverage 50%; height 50 ft; larger yards next to residential INP table and notes; landscaping/screening required
RES Resort lodging/recreation Front 60 ft; street-side 15 ft; side/rear 15–30 ft; coverage 10%; height 36 ft RES table; § 17.54 cross-refs

Combining (overlay) districts that can change the rules

Combining districts are “stacked” on a base zone and change uses/standards. The county establishes: -AG, -AO, -B, -UP, -DL, -Dc/-Dh/-Ds, -DR, -FH, -GH, -MR, -PD, -SP, -TM. Always check the zoning map for overlays.

  • -B Building Site. Sets minimum parcel size and custom setbacks/lot widths (e.g., B‑3 to B‑100 tables). Example: B‑10 requires 20 ft front, 15/5 ft side, etc.
  • -DL Density Limitation. Caps dwellings per acre; -DL 0 prohibits residential; must also fit the General Plan.
  • -UP Use Permit Required. All uses require discretionary approval (CUP or MUP).
  • -Dc/-Dh/-Ds Design Review. Triggers design review and guidelines; flagged in setback exceptions note. See design review.
  • -DR Development Reserve. Defers development until a specific plan is prepared/approved; then the plan’s standards govern.
  • -FH Flood Hazard. Applies FEMA 100‑year floodplain standards through the Flood Damage Prevention Ordinance.
  • -GH Geological Hazard, -MR Mineral Reserve, -SP Special Purpose, -TM Traffic Management, -AG Agriculture, -AO Aircraft Overflight: Purposes established; detailed standards appear in their articles. Note: -AO may limit ADUs per § 17.56.200 note—verify. Not all article excerpts retrieved; see overlay districts.

Cross-cutting development standards you’ll likely use

  • Setbacks and yards. Zone articles set the baseline; exceptions and how to measure are in § 17.54.130–.150. Watercourse setbacks are in § 17.54.145 (e.g., 100 ft from permanent streams outside PCCP; 50 ft from intermittent streams/ponds/lakes).
  • Allowable uses and permits. Check § 17.06.050 for the land use tables and the permit key (A, C, MUP, CUP, ARP).
  • Specific use requirements. Article 17.56 adds rules for particular uses (e.g., ADUs/JADUs in § 17.56.200; Tahoe Basin ADUs in § 17.56.202; surface mining § 17.56.270; timeshares § 17.56.310). See also California ADU law.
  • Landscaping and screening. Often required for commercial/industrial and outdoor storage; see § 17.54.030 and the project’s zone notes. See landscaping and screening.
  • Signs. See Article 17.54.170 et seq. and your zone’s sign setbacks (e.g., many zones allow 5 ft front setback for signs); see signage.
  • Nonconforming uses. Lawful existing uses may continue subject to § 17.60.120; changes/expansions trigger current rules. See nonconforming uses.

Checklist

  • Confirm the parcel is in the unincorporated area and identify its base zone and any combining districts on the county zoning maps under § 17.06.020.
  • Verify whether a community/specific plan appendix applies (Tahoe Basin Area Plan, Sunset Area Plan, etc.) under § 17.02.030.
  • Cross-check allowed use and permit type in § 17.06.030 and the land use tables in § 17.06.050.
  • Apply the zone’s dimensional standards (setbacks, height, coverage) plus any overlay standards; then apply exceptions/measurement rules in § 17.54.130–.150 and watercourse setbacks in § 17.54.145.
  • Check if design review applies (-Dc/-Dh/-Ds) per zone notes.
  • Confirm parking per § 17.54.050–.060 and any landscaping or signage standards.
  • For housing, confirm any ADU/JADU allowances (§ 17.56.200; Tahoe § 17.56.202) and any limitations in -AO or plan areas; also see California housing laws.
  • If standards cannot be met, evaluate variances and exceptions, including possible administrative relief § 17.60.105 noted in some zone tables. Verify with the jurisdiction.

Risks & Ambiguities

Issue Why it matters What to verify
Tahoe Basin differences Height/coverage and ADU rules may be governed by TRPA and the Tahoe Basin Area Plan, not countywide RS/RM tables If parcel is in the Basin, use § 17.02.030; RS height note; ADU Tahoe § 17.56.202. Verify with Planning.
Overlay stacking -B, -DL, -FH, -AO, -Dc, etc., can all change setbacks, density, or process Read the overlay article (e.g., -B table; -DL density; -FH flood rules) and your map suffix.
Watercourse setbacks Projects near streams/ponds often trigger larger setbacks than zone tables Apply § 17.54.145 and check community plan exceptions; conditions may add more.
Mixed-use in commercial zones Residential in C‑zones has added yard/setback rules See C2/MU notes requiring added 10 ft yards for residential in commercial districts.
Nonconforming situations Existing uses/structures may be legal but constrained for expansion Apply § 17.60.120 before assuming expansion or change is allowed.
Specific Plan overrides Adopted plan may supersede base zone standards Check § 17.02.030 appendices; then apply plan development standards.

Plain-English Summary

In unincorporated Placer County, what you can build depends on your mapped zoning district and any overlays. First, look up your zone on the county zoning map; then use the zone’s article for allowed uses and the setback/height/coverage rules, add any overlay rules, and apply countywide measurement and exception rules. Many neighborhoods are RS (single-family) with simple setbacks, while rural lots use RA/RF/AE rules with larger yards, and commercial corridors apply C2 standards. If you’re near streams, in the Tahoe Basin, or within a specific plan, different setbacks or plan rules can override the base zone.

Source References

  • § 17.02.010–.030 (Title, purpose, and applicability to unincorporated areas; plan appendices)
  • § 17.06.010–.030 (Zones and combining districts; zoning maps; allowable uses framework)
  • AE standards (Article 17.08 excerpts)
  • F standards (Article 17.10 excerpts)
  • FOR standards (Article 17.12 excerpts)
  • TPZ purpose/criteria/standards (Article 17.16 excerpts)
  • O uses (Article 17.14 excerpts)
  • W uses (Article 17.18 excerpts)
  • C2 purpose and standards (Article 17.22)
  • C3 purpose (Article 17.24)
  • INP standards (Article 17.34 excerpts)
  • AP purpose (Article 17.36)
  • C1 purpose/uses (Article 17.30)
  • OP purpose (Article 17.32 excerpts)
  • RA purpose/standards (Article 17.44)
  • RF purpose/standards (Article 17.46)
  • RM purpose/uses (Article 17.48)
  • RS standards and notes (RS article under § 17.06.060 et seq.; notes)
  • Setbacks/measurement/exceptions; watercourse setbacks (Article 17.54)
  • Combining districts (-B, -DL, -UP, -DR, -FH, -GH, -MR, -PD, etc.) (Article 17.52 excerpts)
  • Specific uses (ADUs/JADUs § 17.56.200–.202; mining § 17.56.270; timeshares § 17.56.310)
  • Nonconforming uses § 17.60.120; administrative relief § 17.60.105 (noted in zone tables)

Sources

Retrieved passages

  • Placer County Zoning Code (Article 17.06.) High relevance
  • Placer County Zoning Code (§ 17.02.020.) High relevance
  • Placer County Zoning Code (Chapter 17) High relevance
  • Placer County Zoning Code (section are) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Chapter 17) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Chapter 16) High relevance
  • Placer County Zoning Code (§ 15) High relevance
  • Placer County Zoning Code (Chapter 16) High relevance
  • Placer County Zoning Code (§ 17.06.060.) High relevance
  • Placer County Zoning Code (Chapter 16) High relevance
  • Placer County Zoning Code High relevance
  • Placer County Zoning Code (Section 51110.1) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (Title 14) High relevance
  • Placer County Zoning Code (§ 13) High relevance

Cited sections

Frequently asked questions

What can I build on an RS lot in unincorporated Placer County?

Typically a single-family home is allowed; duplex/triplex/fourplex may be allowed only through § 17.54.120(E) density incentives or as allowed by Gov. Code § 65852.21. Typical RS standards include a 20 ft front setback, 10 ft street‑side, sides totaling 15 ft (min 5/7.5 ft), and 10–20 ft rear depending on stories; max coverage is 40%. Height is 30–36 ft depending on lot size and location, with Tahoe exceptions. Verify overlays.

What are the basic setbacks on rural RA or RF parcels?

RA and RF zones both generally require 50 ft front and 30 ft side/rear setbacks. RA allows up to 35% lot coverage; RF allows up to 10%. Max height is 36 ft in both. Always layer watercourse setbacks from § 17.54.145 if near streams.

Where can I find the official zoning for my unincorporated parcel?

Zoning boundaries are on the county’s adopted zoning maps under § 17.06.020. Changes to those maps require a rezoning ordinance per § 17.60.090. Always verify if a specific plan appendix governs your area under § 17.02.030.

Do I need design review?

If a parcel is in a -Dc, -Dh, or -Ds design review combining district, design review applies. Some discretionary permits may also require design review by condition. Check your map suffix and see § 17.52.070 references in § 17.54.140 notes.

Are there special water setbacks from creeks or lakes?

Yes. Outside the PCCP area, typical setbacks are 100 ft from permanent streams and 50 ft from intermittent streams, canals, ponds, and lakes, measured as stated in § 17.54.145. Community plan areas may set different setbacks.

Can I add an ADU or JADU?

ADUs/JADUs are governed by § 17.56.200; within the Tahoe Basin, see § 17.56.202. Airport Overflight (-AO) and specific plans may limit ADUs—check your overlays and plan area. State law also applies.

What if my site is in the floodplain?

The -FH Flood Hazard overlay applies FEMA 100‑year floodplain standards via the county’s flood ordinance; this can affect allowed uses and elevations beyond the base zone. See § 17.52.090.

How do setbacks get measured on corner lots?

Measurement rules are in § 17.54.130(C). Corner lots have both a front and a street‑side setback; the street‑side uses the larger measurement where both side and street‑side apply.

Do commercial zones have different setbacks for residential components?

Yes. In C‑zones, residential uses typically must observe at least a 10 ft front and street‑side and 5 ft side/rear, with additional buffers where abutting residential zones. See C2/MU notes.

What if my project doesn’t fit a standard setback or height?

The code provides limited administrative relief (§ 17.60.105 noted in several zone tables) and discretionary adjustments via permit conditions; formal variances may also be possible. Verify feasibility with Planning.

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