Local zoning · Calaveras County

Calaveras County — Development Standards

Development Standards under the Calaveras County local zoning and planning code, with the controlling citations.

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Last reviewed: July 6, 2026

Overview

This page distills the dimensional and intensity standards that actually govern what you can build in the unincorporated areas of Calaveras County under Title 17, Zoning. It focuses on setbacks, height, density, and FAR that apply by zoning district, plus countywide “rules of measurement” and key overlays that can change the base rules. If you’re new to Calaveras zoning, start with the Calaveras County zoning & planning overview and the Calaveras County Zoning map before you dive in.

Required setbacks are measured from lot lines, run parallel to those lines, and must remain open “ground to sky,” except for listed encroachments like eaves. See the county’s rules of measurement and setback encroachments in § 17.02.030 and § 17.16.080.

Countywide rules you’ll use in every district

  • How to measure: height, lot width/depth/frontage, floor area and FAR, and setbacks are standardized in § 17.02.030 (e.g., height from average base elevation; FAR definition and exclusions).
  • Setback encroachments and stream/wetland buffers: § 17.16.080 lists allowed encroachments (eaves up to 1/3 of required setback, but no closer than 3 feet) and imposes a 50-foot buffer from top of bank and wetlands unless adjusted by Administrative Use Permit.
  • Height exceptions and visibility triangles: some rooftop features may exceed height (§ 17.16.090) and corner lot sight triangles control placement near intersections (§ 17.16.140).
  • Slopes over 50%: several district tables refer you to § 17.16.050 for added constraints on steep parcels.
  • Signs and landscaping: Sign measurement defers to the County’s sign chapter (§ 17.24) and many projects must satisfy Calaveras County Signage and Calaveras County Landscaping and Screening standards.

District-by-District standards (base zones)

The County establishes base zoning districts in § 17.03.010, grouped as Resource, Residential, Commercial, Industrial, and Public/Semi-Public. Each district below summarizes purpose/typical uses (where stated in Title 17), key dimensional standards, and where the rules apply (parcels mapped with that district in the unincorporated areas).

Resource Zones

These districts apply broadly across rural/agricultural and timbered lands in the unincorporated County. Development standards are consolidated in § 17.04.030.

  • GF — General Forest

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: 1 DU/legal lot; setbacks: front 30 ft or 60 ft from centerline (greater), side 30 ft, rear 30 ft; 35 ft height. Cite slopes rule if applicable. § 17.04.030.
    • Where it applies: Where the zoning map shows GF on unincorporated parcels.

  • TP — Timber Production

    • Typical permitted uses: Timberland-compatibility requirements appear in § 17.04.040(C); additional TP criteria reference state timber laws. § 17.04.040(C).
    • Key standards: Same as GF (above) per § 17.04.030.
    • Where it applies: TP-mapped unincorporated parcels.

  • A1 — General Agriculture

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: Same setback/height pattern as GF; table notes “no maximum” for agricultural buildings; 1 DU/legal lot. § 17.04.030.
    • Where it applies: A1-mapped unincorporated parcels.

  • AP — Agriculture Preserve

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: Same dimensional standards as GF; 1 DU/legal lot. § 17.04.030.
    • Where it applies: AP-mapped unincorporated parcels.

  • RA — Residential Agriculture

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: Same dimensional standards as GF; 1 DU/legal lot. § 17.04.030.
    • Where it applies: RA-mapped unincorporated parcels.

Residential Zones

Purposes and permitted uses are listed in § 17.05.010–.020; development standards are in § 17.05.030. Single-unit dwellings are permitted in all residential districts; multi-unit housing is permitted in R2 and R3 per the land-use table. § 17.05.020.

  • RR — Rural Residential

    • Typical permitted uses: Single-unit dwellings; ADUs allowed; see § 17.05.020.
    • Key standards: Max density 1 DU/legal lot; setbacks: front 20 ft or 50 ft from centerline (greater), interior side 10 ft, rear 20 ft; 35 ft height. § 17.05.030.
    • Where it applies: RR-mapped unincorporated parcels.

  • R1 — Single-Family Residential

    • Typical permitted uses: Single-unit dwellings; ADUs allowed; see § 17.05.020.
    • Key standards: Max density 1 DU/legal lot; front 20/50 ft (greater); interior side 5 ft, rear 20 ft; 35 ft height. § 17.05.030.
    • Where it applies: R1-mapped unincorporated neighborhoods.

  • R2 — Two-Family Residential

    • Typical permitted uses: Duplex/multi-unit; ADUs allowed; see § 17.05.020.
    • Key standards: Max density 12 DU/acre; Min density 6 DU/acre (only where on public water & sewer); front 20/50 ft (greater); interior side 5 ft, rear 20 ft; 35 ft height. § 17.05.030.
    • Where it applies: R2-mapped unincorporated areas with services.

  • R3 — Multiple-Family Residential

    • Typical permitted uses: Multi-unit housing; ADUs allowed; see § 17.05.020.
    • Key standards: Max density 20 DU/acre; Min density 12 DU/acre (only with public water & sewer); front 20/50 ft (greater); interior side 10 ft, rear 20 ft; 45 ft height. § 17.05.030.
    • Where it applies: R3-mapped unincorporated areas with services.

Commercial Zones

Development standards are in § 17.06.040; where residential is included, § 17.06.030 controls unit placement (upper floors or behind street-front commercial).

  • HC — Historic Center

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: FAR 2.0 (non-residential); 35 ft height; front 0 ft or 30 ft from centerline (greater); interior side 0 ft (5 ft if next to a non-commercial zone); rear 0 ft (20 ft if abutting Residential). § 17.06.040.
    • Residential in HC: allowed only per § 17.06.030 siting rules.

  • C1 — Local Commercial

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: FAR 2.0; 35 ft height; same setbacks as HC per table. § 17.06.040.
    • Residential in C1: see § 17.06.030.

  • C2 — General Commercial

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: FAR 1.0; 45 ft height; same setback pattern as HC/C1. § 17.06.040.

  • CP — Professional Office

    • Typical permitted uses: Not found in retrieved materials.
    • Key standards: FAR 1.0; 35 ft height; same setback pattern as HC/C1. § 17.06.040.

Industrial Zones

Land-use permissions are tabulated in § 17.07.020; dimensional standards are in § 17.07.030.

  • M1 — Light Industrial

    • Typical permitted uses: Custom manufacturing, R&D, warehousing, terminals, light industrial; some uses require use permits (e.g., salvage). § 17.07.020.
    • Key standards: FAR up to 0.75 (public water/sewer) or 0.5 (well/septic); 45 ft height; setbacks: front/street side 30 ft or 60 ft from centerline (greater); interior side 20 ft; rear 30 ft. § 17.07.030.

  • M2 — General Industrial

    • Typical permitted uses: General and intensive industrial (some uses conditional), R&D, warehousing. § 17.07.020.
    • Key standards: Same as M1 for FAR/height; setbacks mirror M1: interior side 20 ft, rear 30 ft. § 17.07.030.

  • M4 — Industrial Park/Specialized Industrial

    • Typical permitted uses: Many industrial activities; some prohibited or conditional. § 17.07.020.
    • Key standards: Same FAR and height as M1/M2; setbacks: front/street side 30 ft or 60 ft from centerline (greater); interior side 20 ft; rear 20 ft. § 17.07.030.

Public and Semi-Public Zones

Purposes and uses are in § 17.08.010–.020; standards are in § 17.08.030.

  • PS — Public Service

    • Typical permitted uses: Public buildings/facilities, utilities. § 17.08.010–.020.
    • Key standards: No FAR cap; no maximum height (“none applicable”); front/street side 20 ft or 50 ft from centerline (greater); interior side 10 ft; rear 20 ft. § 17.08.030.

  • REC — Recreation

    • Typical permitted uses: Destination resorts, recreation facilities, parks, related retail/support. § 17.08.010–.020.
    • Key standards: FAR 0.5 (public water/sewer) or 0.25 (well/septic); 35 ft height; front/street side 30 ft or 60 ft from centerline (greater); interior side 30 ft; rear 30 ft. § 17.08.030.

  • OS — Open Space

    • Typical permitted uses: Open space preserves, trails, low-impact recreation. § 17.08.010–.020.
    • Key standards: FAR 0.1 (public or private services); 24 ft height; setbacks mirror REC: interior side/rear 30 ft. § 17.08.030.

Overlays that can change development standards

  • AO — Airport Overflight Overlay. New development must remain compatible with the Airport Land Use Compatibility Plan; height is controlled by FAA Part 77 surfaces (County cites 35 ft as a general allowance absent airspace penetrations). Noise reduction to CNEL 45 dB inside new homes is required in higher CNEL areas. § 17.09.050–.080.
  • EP — Environmental Protection Overlay. No approval unless resource protection or mitigation plans are adopted and the project conforms to them. § 17.10.040–.050.
  • DR — Design Review Overlay. Triggers Calaveras County Design Review where mapped (e.g., parts of Mokelumne Hill). § 17.11.020.
  • X — Parcel Size Limitation Overlay. Locks a parcel’s minimum lot size and often prohibits subdivision; overrides the base district’s minimum where applied. § 17.12.010–.030.
  • PD — Planned Development Overlay. Custom standards per PD Plan; if silent, base-zone standards apply. § 17.14.050–.060.
  • SP — Specific Plan Overlay. Adopted specific plans govern use and development within their boundaries; if silent, Title 17 applies. § 17.15.020.

Quick dimensional standards (selected zones)

District Density or FAR Height Setbacks (Front/Street Side/Interior/Rear) Code Reference
RR 1 DU/legal lot 35 ft 20 ft or 50 ft to centerline (greater) / same / 10 ft / 20 ft § 17.05.030
R2 12 DU/ac (min 6 on public W+S) 35 ft 20/50 ft (greater) / same / 5 ft / 20 ft § 17.05.030
R3 20 DU/ac (min 12 on public W+S) 45 ft 20/50 ft (greater) / same / 10 ft / 20 ft § 17.05.030
C1 FAR 2.0 35 ft 0 ft or 30 ft to centerline (greater) / same / 0 ft (5 ft if next to non-commercial) / 0 ft (20 ft if abutting residential) § 17.06.040
C2 FAR 1.0 45 ft Same as C1 § 17.06.040
M1 FAR 0.75 (public) / 0.5 (private) 45 ft 30 ft or 60 ft to centerline (greater) / same / 20 ft / 30 ft § 17.07.030
GF/TP/A1/AP/RA 1 DU/legal lot 35 ft (ag buildings may have no max per table note) 30 ft or 60 ft to centerline (greater) / same / 30 ft / 30 ft § 17.04.030
REC FAR 0.5 (public) / 0.25 (private) 35 ft 30 ft or 60 ft to centerline (greater) / same / 30 ft / 30 ft § 17.08.030
PS No FAR cap None applicable 20 ft or 50 ft to centerline (greater) / same / 10 ft / 20 ft § 17.08.030

Notes:

  • Setback lines are measured per § 17.02.030; allowed encroachments and stream/wetland buffers are in § 17.16.080.
  • Where the district table references “slopes 50% or more,” see § 17.16.050.

Cross-cutting topics that affect site plans

Checklist

  • Confirm your parcel’s base zone and any overlays on the County zoning map. See Calaveras County Land Use.
  • Apply the correct district standards for density/FAR, setbacks, and height (see tables cited above).
  • Re-check rules of measurement: where do you measure height, setbacks, and FAR from? § 17.02.030.
  • Identify overlay constraints (AO height/noise, EP resource plans, DR design standards, X minimum lot size). § 17.09, § 17.10, § 17.11, § 17.12.
  • Test for steep-slope triggers (§ 17.16.050) and environmental buffers (50 ft stream/wetland per § 17.16.080.B).
  • Verify corner visibility triangles at driveways/intersections (§ 17.16.140).
  • Confirm parking counts/layout with Chapter 17.22 and coordinate any Design Review submittals if in a DR overlay.

Risks & Ambiguities

Issue Why it matters What to verify
Centerline-versus-lot-line setbacks Many tables require the greater of a fixed setback or a distance from road centerline; misreading can push buildings too close to roads. Your specific roadway right-of-way width and which measurement is greater. § 17.04.030, § 17.05.030, § 17.06.040, § 17.07.030.
Stream/wetland 50 ft buffer It can sterilize parts of a lot for structures/parking. Whether an Administrative Use Permit could adjust the buffer based on a biologist’s recommendation. § 17.16.080.B.
AO overlay height FAA Part 77 surfaces can be lower than district height limits. Whether the site penetrates Part 77 and if FAA notice is required. § 17.09.070–.080.
Steep slope triggers Extra constraints can change feasible building envelopes. Average slope calc and whether § 17.16.050 applies.
FAR calculations FAR caps affect commercial/industrial yield; exclusions matter. What counts in “floor area” and site area for FAR; see § 17.02.030.F–G.
Commercial-residential mixing Residential in commercial zones must be behind/above commercial. Ground floor frontage depth and waiver criteria. § 17.06.030.

Plain-English Summary

In unincorporated Calaveras County, your lot’s zoning district sets how tall and where you can build, and how many homes or how much floor area is allowed. Expect front yard setbacks that may be tied to the centerline of the road, standard side and rear yards by district, and overlay rules (like airport height limits or stream buffers) that can override the base rules. Always measure height, setbacks, and FAR using the County’s defined methods in § 17.02.030 and check for overlays before you design.

Source References

  • Rules of measurement, FAR, setbacks: § 17.02.030.
  • Resource zones development standards: § 17.04.030.
  • Residential uses and development standards: § 17.05.020–.030.
  • Commercial development standards and residential mixing: § 17.06.030–.040.
  • Industrial land uses and development standards: § 17.07.020–.030.
  • Public/Semi-Public purposes and standards: § 17.08.010–.030.
  • AO Overlay: § 17.09.050–.080.
  • EP Overlay: § 17.10.040–.050.
  • DR Overlay: § 17.11.020.
  • X Overlay: § 17.12.010–.030.
  • PD Overlay: § 17.14.050–.060.
  • Specific Plans: § 17.15.020.
  • Countywide setback encroachments and buffers: § 17.16.080; height exceptions: § 17.16.090; visibility triangles: § 17.16.140.

Sources

Retrieved passages

  • Calaveras County Zoning Code (Section 65915) High relevance
  • Calaveras County Zoning Code (Section 17.02.030.G) High relevance
  • Calaveras County Zoning Code (§ 5012.) High relevance
  • Calaveras County Zoning Code (Section 52262) High relevance
  • CFC § 65915 (Title 17) High relevance
  • Calaveras County Zoning Code (Title 17) High relevance
  • Calaveras County Zoning Code (Chapter 17.27) High relevance
  • CBC § 200 (Title 17) High relevance
  • CFC § 6104 (Title 15) High relevance
  • Calaveras County Zoning Code (Section 17.25.030) High relevance
  • Calaveras County Zoning Code (Title 17) High relevance
  • Calaveras County Zoning Code (Section 17.16.140) High relevance
  • Calaveras County Zoning Code (Title 17) High relevance
  • Calaveras County Zoning Code (Section 17.16.050) High relevance
  • Calaveras County Zoning Code (Title 15) Medium relevance
  • Calaveras County Zoning Code (CHAPTER 17.15) High relevance
  • Calaveras County Zoning Code (Section numbers) High relevance
  • Calaveras County Zoning Code (Section 17.25.030) Medium relevance
  • Calaveras County Zoning Code (Section 17.18.090.F) Medium relevance
  • Calaveras County Zoning Code (Chapter is) Medium relevance
  • Calaveras County Zoning Code (Title 17) Medium relevance

Cited sections

Frequently asked questions

What can I build on an R1 lot in Calaveras County?

In unincorporated areas, R1 allows one single-unit dwelling per legal lot as-of-right and lists ADUs as a permitted use in the residential land use table. The key dimensional standards are a 35 ft maximum height and front setbacks of 20 ft (or 50 ft to road centerline, whichever yields a greater setback), with 5 ft interior side and 20 ft rear yards. See § 17.05.020–.030.

What are the basic residential setbacks in Calaveras County?

For most residential districts, fronts are 20 ft from the property line or 50 ft from the road centerline (whichever is greater), with interior sides and rears set by district: RR has 10 ft sides; R1 and R2 have 5 ft sides; R3 has 10 ft sides; all have 20 ft rears. Always apply the County’s measurement rules in § 17.02.030. § 17.05.030; § 17.02.030.

Do I need design review for my project?

Only if your unincorporated parcel has the Design Review (DR) overlay. When mapped, Design Review under Chapter 17.29 applies in addition to base-zone standards. Check § 17.11.020 and the Calaveras County Design Review page.

How tall can my commercial building be?

Heights vary: C1/HC allow 35 ft; C2 allows 45 ft; CP allows 35 ft. In all commercial zones, front and street-side setbacks can be 0 ft unless the 30 ft-from-centerline rule produces a greater distance. See § 17.06.040.

What’s the FAR limit in Calaveras County commercial zones?

FAR for the non-residential portion is up to 2.0 in HC and C1, and up to 1.0 in C2 and CP, measured per the County’s FAR definition in § 17.02.030(G). § 17.06.040; § 17.02.030(G).

Are there special setbacks from creeks or wetlands?

Yes. New development must be at least 50 ft from the top of bank of intermittent/perennial streams and from the outer edge of wetlands, unless the Planning Director adjusts the buffer via Administrative Use Permit based on a biologist’s recommendation. § 17.16.080(B).

Does the Airport Overflight (AO) overlay change height limits?

It can. AO applies FAA Part 77 airspace surfaces; if a proposed structure would penetrate an obstruction surface, it may be limited, and FAA notice may be required. There is also a baseline statement that nothing prohibits structures/trees up to 35 ft where consistent. See § 17.09.070–.080.

Can I put residential units in a commercial zone?

Yes, but they must be above or behind the street-front commercial, and the ground floor along the frontage must remain commercial to the required depth unless waived by a Conditional Use Permit. See § 17.06.030.

What are industrial setbacks?

In M1/M2, fronts and street sides are 30 ft or 60 ft to road centerline (whichever is greater), interior sides are 20 ft, and rears are 30 ft (M4 rear is 20 ft). Max height is 45 ft, with FAR up to 0.75 on public services. See § 17.07.030.

Do public facilities have height limits?

In the PS zone, the table shows “none applicable” for maximum building height; check any overlay constraints (e.g., AO). See § 17.08.030.

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