Unincorporated Calaveras County, California requires a building permit for a new home1. County zoning applies throughout the unincorporated area, and the county Environmental Management Agency handles septic permits and inspections23. The Building Department, Planning Department and Environmental Management Agency each handle part of the approval process456.
At a glance
- Building permit
- Required for new dwelling construction, issued by the Calaveras County Building Department14
- Zoning
- County Zoning Code applies to land, uses, structures and development in unincorporated areas25
- Septic permits
- County-issued OWTS permits through the Environmental Management Agency; required before a dwelling building permit is issued36
- RV / tiny home living
- Private-property RV camping is limited to 14 continuous days or 30 cumulative days per calendar year7
- Owner-builder
- Available under state law and the county's own Owner-Builder process, including Limited Density Owner-Built Rural Dwellings8
- Well permits
- Required from the county before drilling a new well or working on an existing one9
- Building code
- County-enforced California Building Code; the 2025 state code applies to applications on or after 2026-01-011011
- Septic soil difficulty
- Only 0.3% of county soils are free of severe limits for a conventional drain field12
Who to call
Building permits
Calaveras County Building Department
Building permits, plan review, inspections and code compliance for unincorporated Calaveras County; contact is the Chief Building Official
891 Mountain Ranch Road, Building E, San Andreas, CA 95249
Septic permits
Calaveras County Environmental Management Agency - On-Site Wastewater
Onsite Wastewater Treatment System (OWTS/septic) permits, site evaluations and inspections for Calaveras County; the same Environmental Health division also runs the county's well-permitting program; contact is the Environmental Health Director
891 Mountain Ranch Road, Building E, San Andreas, CA 95249
Planning & zoning
Calaveras County Planning Department
Zoning Code administration, flood plain administration, general plan updates, and zone changes, variances, subdivisions, parcel maps and use permits for unincorporated Calaveras County
891 Mountain Ranch Road, Building E, San Andreas, CA 95249
Floodplain permits
Calaveras County Department of Public Works
Permits and Inspections, including grading permits required for development within FEMA-mapped flood plains, and road-related permitting for unincorporated Calaveras County; contact is the Public Works Director
891 Mountain Ranch Road, Building D, San Andreas, CA 95249
Contact details are copied from each office’s official page and were checked against it on October 7, 2026.
Off-grid gear
Going off-grid in Calaveras County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit 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 Department10. The 2025 California Building Standards Code applies to permit applications dated on or after January 1, 202611. 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 employers8.
Who is the Calaveras County building department, and how do you reach them?
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 projects134. 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 less13. Inspection requests may go through the permit portal, online form or inspection line14. 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 inspection144. 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 certificate15.
Does Calaveras County have zoning?
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 Code1617. 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 centerline18. Maximum height is 35 feet in RR, R1 and R2 districts and 45 feet in R3, subject to code exceptions19. Subdivisions are regulated under the General Plan, zoning and the County Subdivision Ordinance20. Ask the Planning Department to confirm the parcel's zoning, minimum size, overlays and special-plan standards before designing5.
How do septic permits work in Calaveras County?
Calaveras County's On-Site Wastewater Department handles OWTS permits, profile-hole review, plan approval and construction inspections36. 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 check21. The stated fees are $760 for a standard installation permit, $823 for an engineered installation permit and $253 for engineered plan check21. County staff verify construction at open-trench and final inspections, and the completed system must receive final inspection before use22. This provides a legal off-grid sanitation path, but approval depends on the parcel's site and soil conditions23. Only 0.3% of county soils are free of severe limitations for a conventional drain field, so investigate septic feasibility before fixing the house location12.
Can you live in an RV or tiny home on your land in Calaveras County?
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 year7. 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 permitted24. 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 standard25. Qualifying unincorporated lots may add ADUs through the building-permit process, subject to zoning, water, wastewater, fire and building requirements26.
How do you build a home in Calaveras County, step by step?
- Ask the Planning Department to confirm the parcel's zoning, allowed residential use, minimum parcel size, setbacks and overlays517.
- 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 review27.
- For a private well, apply through the county before drilling or covered well work and include the proposed placement on a plot plan9.
- For septic, obtain profile-hole and plan approval, then the OWTS installation permit before construction21.
- Submit plans and the building-permit application to the Building Department, using the online portal where available134.
- Schedule building inspections and the required OWTS open-trench and final inspections1422.
- Complete applicable grading and waste-documentation conditions before project finalization or issuance of a Certificate of Occupancy15.
What should you check before buying land in Calaveras County?
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 site12. 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 parcel282930. A county permit is required before developing a new well or performing covered work on one9. A parcel contiguous to an available Calaveras County Water District line may connect when capacity is available, while other parcels may need a line extension27. Floodplain grading in unincorporated Calaveras County requires a Public Works grading permit despite ordinary grading exemptions31. 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 floodproofing32. 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 application33.
Watch-outs
- Private-property RV camping outside a designated camping area in unincorporated Calaveras County is limited to 14 continuous days or 30 cumulative days in a calendar year7.
- Only 0.3% of Calaveras County's soils are free of severe limitations for a conventional septic drain field, and an OWTS installation permit requires profile-hole and plan approval, so test septic feasibility before finalizing a house site1221.
Sources
- Calaveras County Building Department Fee Schedule, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Procedures For Obtaining An Onsite Sewage Disposal System, quoted and re-checked
- Calaveras County Building Department (building.calaverasgov.us)
- Calaveras County Planning Department (planning.calaverasgov.us)
- Calaveras County Environmental Management Agency - On-Site Wastewater (ema.calaverasgov.us)
- Calaveras County Zoning Code, quoted and re-checked
- Calaveras County Building Department - Permit Application, quoted and re-checked
- Well Program, quoted and re-checked
- publicworks.calaverasgov.us, quoted and re-checked
- Approved Building Standards (California statewide rule), quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Calaveras County Building Department FAQs, quoted and re-checked
- Inspections, quoted and re-checked
- Grading and Drainage Ordinance, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Procedures For Obtaining An Onsite Sewage Disposal System, quoted and re-checked
- Procedures For Obtaining An Onsite Sewage Disposal System, quoted and re-checked
- Procedures For Obtaining An Onsite Sewage Disposal System, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- Rancho Calaveras Special Plan, quoted and re-checked
- Calaveras County Zoning Code, quoted and re-checked
- New Connections, quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Calaveras County Code Title 15, Chapter 15.05 Grading and Drainage Ordinance, quoted and re-checked
- Calaveras County General Plan Safety Element, quoted and re-checked
- Calaveras County General Plan Safety Element, quoted and re-checked
Written October 7, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.