Building permits, zoning and septic rules in Calaveras County, California

Yes. Calaveras County lists building permits for limited-density rural dwellings, manufactured dwellings, single- and two-family homes, agricultural buildings, additions, remodels and other building work¹. The published fee schedule effective August 8, 2026 lists a $5,701 base fee for a single- or two-family dwelling; plan-check fees are due at submittal, and other departmental fees may apply¹. Calaveras County has adopted the California Building Code for construction administered by its Building Department⁹. The 2025 California Building Standards Code applies to permit applications dated on or after January 1, 2026¹⁰. A qualifying owner-builder may act as the responsible party on the county permit, but must sign the applicable declaration and comply with laws governing owner-builders and employers⁷.

Calaveras County's Building Department is at 891 Mountain Ranch Road, Building E, San Andreas, CA 95249, phone (209) 754-6390⁴. Its online portal lets applicants submit applications, upload plans, track permit status and manage projects^4,12. Plans may be submitted digitally or on paper; listed projects eligible for a digital or single plan set include residential additions of 1,000 square feet or less¹². Inspection requests may go through the permit portal, online form or inspection line¹³. E-Inspect is limited to qualifying licensed contractors and eligible inspections; it requires the county form and clear photographs, and a rejected submission may require a field inspection^4,13. For projects subject to county grading or construction-waste rules, specified completion, fee and waste-log conditions must be cleared before finalization or a Certificate of Occupancy; we could not confirm that every project needs that certificate¹⁴.

Yes. Calaveras County's Zoning Code governs land, uses, structures and development throughout the unincorporated county². The Official Zoning Map identifies each parcel's district, and minimum parcel size can be encoded in the zoning designation; the General Plan controls if it conflicts with the Zoning Code². Dimensional standards vary by district: resource zones generally use a 30-foot property-line or 60-foot road-centerline front and street-side setback, whichever is greater, while residential districts generally use 20 feet from the property line or 50 feet from centerline². Maximum height is 35 feet in RR, R1 and R2 districts and 45 feet in R3, subject to code exceptions². Subdivisions are regulated under the General Plan, zoning and the County Subdivision Ordinance². Ask the Planning Department to confirm the parcel's zoning, minimum size, overlays and special-plan standards before designing⁵.

Calaveras County's On-Site Wastewater Department handles OWTS permits, profile-hole review, plan approval and construction inspections^3,6. An installation permit is required before construction; standard systems need satisfactory site and soil conditions, while unsuitable soils require a qualified professional to design an engineered system for county plan check³. The stated fees are $760 for a standard installation permit, $823 for an engineered installation permit and $253 for engineered plan check³. County staff verify construction at open-trench and final inspections, and the completed system must receive final inspection before use³. This provides a legal off-grid sanitation path, but approval depends on the parcel's site and soil conditions³. Only 0.3% of county soils are free of severe limitations for a conventional drain field, so investigate septic feasibility before fixing the house location¹¹.

Outside a designated camping area in unincorporated Calaveras County, a property owner may camp in an RV or other shelter for up to 14 continuous days or 30 cumulative days in a calendar year². The county's current materials do not expressly classify a tiny home for occupancy, so ask the Planning Department how the proposed unit and parcel would be treated⁵. A manufactured home installed on the required foundation can qualify as a detached single-unit dwelling in a district where that use is permitted or conditionally permitted². In the Rancho Calaveras Special Plan area, a manufactured home is allowed where a conventional house is permitted, except in historical districts, and must meet the stated HUD construction standard¹⁵. Qualifying unincorporated lots may add ADUs through the building-permit process, subject to zoning, water, wastewater, fire and building requirements².

1. Ask the Planning Department to confirm the parcel's zoning, allowed residential use, minimum parcel size, setbacks and overlays^2,5.
2. If the parcel borders an available Calaveras County Water District line and capacity is available, budget for the connection; a line extension instead requires concept review¹⁶.
3. For a private well, apply through the county before drilling or covered well work and include the proposed placement on a plot plan⁸.
4. For septic, obtain profile-hole and plan approval, then the OWTS installation permit before construction³.
5. Submit plans and the building-permit application to the Building Department, using the online portal where available^4,12.
6. Schedule building inspections and the required OWTS open-trench and final inspections^3,13.
7. Complete applicable grading and waste-documentation conditions before project finalization or issuance of a Certificate of Occupancy¹⁴.

Only 0.3% of Calaveras County land is free of severe limitations for a conventional drain field, so establish septic feasibility before committing to a house site¹¹. Just 18.4% of the county has a slope of 15% or less, 70.4% is wooded, and severe drought occurs in 36.8% of years; investigate buildable area, water supply, fire access and defensible space parcel by parcel¹¹. A county permit is required before developing a new well or performing covered work on one⁸. A parcel contiguous to an available Calaveras County Water District line may connect when capacity is available, while other parcels may need a line extension¹⁶. Floodplain grading in unincorporated Calaveras County requires a Public Works grading permit despite ordinary grading exemptions¹⁴. New construction in a designated special flood hazard area must be outside the hazard area or meet county flood standards; residences must be two feet above base flood elevation and nonresidential structures require floodproofing¹⁷. The county uses its Flood Damage Prevention Ordinance to evaluate whether and how new development may be located in a flood hazard zone, but we could not confirm a separate floodplain-development application¹⁸.