Unincorporated Tehama County, California requires a building permit, issued by the county's Building & Safety Department, before you build1. The county's own zoning ordinance covers unincorporated Tehama County, and property-specific rules for setbacks, minimum lot size and permitted uses come from the Planning Department using your property address or APN2. Septic systems also go through the county: Tehama County Environmental Health issues onsite wastewater (OWTS) permits countywide3. California lets an owner-builder skip contractor licensure under specific conditions, but that does not remove Tehama County's own building-permit or inspection requirements4.
At a glance
- Building permit
- Required in unincorporated Tehama County, through Building & Safety1
- Zoning
- Yes, countywide in unincorporated areas; call Planning with your address or APN2
- Septic permit
- Tehama County Environmental Health (OWTS permits)3
- Owner-builder exemption
- Available, conditioned on doing the work yourself or using licensed subcontractors4
- Accessory dwelling unit (ADU)
- Allowed in zoning districts permitting single- or multi-family use; one ADU plus one JADU per residence5
- Agricultural exempt building
- Up to 12,000 sq ft on parcels over 10 acres, with conditions6
- Septic-friendly soils
- Only 1.9% of soils rate free of severe limits for a conventional drain field7
- Median property tax bill
- About $1,996/yr (0.6% effective rate)89
Who to call
Building permits
Tehama County Building & Safety Department
Building permit applications, plan review and inspections for construction in unincorporated Tehama County
444 Oak Street, Room H, Red Bluff, CA 96080
Zoning
Tehama County Planning Department
Property-specific zoning information (permitted uses, use permits, setbacks, minimum lot sizes, building heights, parking) for unincorporated Tehama County
444 Oak Street, Room I, Courthouse Annex, Red Bluff, CA 96080
Septic permits
Tehama County Environmental Health
Septic (OWTS) permits and inspections, well and water-supply oversight, and related land-use environmental review for Tehama County
633 Washington Street, Room 36, Red Bluff, CA 96080
Contact details are copied from each office’s official page and were checked against it on September 25, 2026.
Do you need a building permit in Tehama County, California?
Yes: the county's Building and Safety Division processes building permits for residential construction in unincorporated Tehama County under the California Building Code1. Tehama County adopted Ordinance #2150 for the 2025 code cycle, and local conditions include Climate Zone 11 on the valley floor and at Paynes Creek, Climate Zone 16 at Manton and areas east of Ponderosa, a 90 MPH design wind speed, and Seismic Zone D with Exposure C10. A submitted building-permit application expires after 180 days, and once a permit is issued, the work must reach final inspection and a certificate of occupancy within two years of issuance1112. California separately lets an owner-builder skip contractor licensure when doing the work personally, through employees paid wages as their sole compensation, or by contracting with properly licensed subcontractors, but this exemption does not replace Tehama County's own permit and inspection requirements, and property owners are barred from doing well-drilling work themselves13.
Who is the Tehama County building department, and how do you reach them?
The Tehama County Building & Safety Department, at 444 Oak Street, Room H in Red Bluff, reviews plans, issues permits and inspects construction in unincorporated Tehama County14. Call (530) 527-7002, or apply online through the county's permitting portal at tehamacountyca.viewpointcloud.com14. If you are building a house, have an approved plot plan, a complete set of building plans, energy calculations, truss calculations, a modified soils test, structural calculations if applicable, solar plans and a Manual J report, and a flood elevation certificate if applicable ready when you apply11. After the permit issues, required inspections include the foundation, underfloor, roof sheathing and framing stages, plus County Fire, County Road/CalTrans and Environmental Health clearances before the final inspection15.
Does Tehama County have zoning?
Yes, but only in the unincorporated areas: the Planning and Building & Safety Departments enforce the Tehama County Zoning Ordinance and Building Code outside the cities of Corning and Red Bluff, which set their own separate zoning216. For your specific parcel's permitted uses, use-permit requirements, setbacks, minimum lot size, building height or parking requirements, call the Planning Department at (530) 527-2200 with your property address or APN, or visit the counter at 444 Oak Street, Room I17. Height limits illustrate how much this varies by district: the RE, R-1, R-2 and R-3 residential districts cap buildings at 35 feet, while R-4 allows up to 65 feet18. Tehama County has no separately codified minimum dwelling-unit size, so the California Building Code's own minimums apply by default19. An accessory dwelling unit is allowed in any zoning district that permits single-family or multifamily use, up to one ADU and one JADU per residence, once the Planning Department verifies the property and you obtain a county-approved plot plan and building permit5.
How do septic permits work in Tehama County?
Tehama County Environmental Health is authorized under county code and the state's OWTS Policy, through the Central Valley Regional Water Quality Control Board, to issue onsite wastewater (septic) permits countywide3. Reach that office at (530) 527-8020, 633 Washington Street, Room 36, Red Bluff20. Only 1.9% of Tehama County's soils rate free of severe limitations for a conventional septic drain field under the USDA soil survey, so expect a site evaluation and plan for the possibility of an alternative or engineered system7. Cesspools are not authorized under the county's Local Agency Management Plan, and an existing cesspool found through a complaint, a repair request or a capacity-increase application must be destroyed and replaced with an approved system21. Groundwater use also has its own rule: extracting water for use on a parcel other than the one where the well sits, or on a non-contiguous parcel, needs a permit, and an individual well of 8 inches or less in casing diameter generally will not be permitted unless the parcel has a permitted use the well will supply22.
Can you live in an RV or tiny home on your land in Tehama County?
Under California's default rule, an RV is not meant for occupancy as a permanent dwelling, and unless a local ordinance says otherwise, RVs may only be occupied in mobilehome parks or special occupancy parks23. A structure marketed as a tiny home must be approved as one of several defined types, such as a HUD-Code manufactured home, a California Residential or Building Code home, factory-built housing, a recreational vehicle, a park trailer or a camping cabin; a tiny home that fits none of those categories and does not meet the state building code is a noncomplying structure that cannot legally be occupied24. Tehama County passed a temporary urgency ordinance letting people displaced by the Park Fire occupy one RV, movable tiny house or post-2014 manufactured home per premises as a Temporary Dwelling, with utility hookups, written owner consent and setback compliance, but this rule is limited to Park Fire-displaced residents and expires three years after its effective date unless the Board extends it, so it is not a general path to RV or tiny-home living on rural land here2526.
Building a home in Tehama County: the steps, in order
- Call the Planning Department at (530) 527-2200 with your property address or APN to confirm the zoning district, permitted uses and setbacks before you design or site a home17.
- If your project is a subdivision or larger development, note that any proposal over 50 lots, or over five acres if that is the smaller threshold, must identify the flood hazard area and base flood elevation27.
- Gather your building-permit documents (approved plot plan, complete building plans, energy and truss calculations, a soils test, structural calculations if applicable, solar plans and a Manual J report, and a flood elevation certificate if applicable), then apply online or in person with the Building & Safety Department at 444 Oak Street, Room H1411.
- Apply for an OWTS (septic) permit with Tehama County Environmental Health if you are not on public sewer20.
- If you plan an agricultural exempt building instead of a residence, confirm it meets the program's rules, including a one-acre minimum parcel size and size limits by parcel size6.
- Schedule inspections after the permit issues, including County Fire, County Road/CalTrans and Environmental Health clearances, and complete the final inspection and certificate of occupancy within two years of the permit's issuance1512.
What to check before you buy land in Tehama County
Soils: only 1.9% of Tehama County's soils rate free of severe limitations for a conventional septic drain field, so budget for a site evaluation from Environmental Health before counting on a standard system720. Water: a well permit generally is not required for on-parcel use only, but extracting groundwater for use on a different or non-contiguous parcel needs one, and a small-diameter individual well typically will not be permitted without a qualifying use on the parcel22. Flood: in a floodway, new construction, fill and other development are prohibited unless a registered engineer certifies no increase in the base flood elevation, so ask Planning whether your parcel is mapped in a special flood hazard area27. Income plans: if you are considering a short-term vacation rental, unincorporated Tehama County has required a Short-Term Rental permit since June 20, 2024, and levies an 8% transient occupancy tax on stays of 30 days or less28. Taxes: Tehama County's effective property tax rate runs about 0.6%, for a median bill near $1,996 a year98. About 26.2% of the county is federal land, and the nearest metro area is about 34 miles from the county's center2930.
Watch-outs
- Tehama County's temporary Park Fire housing ordinance allows a displaced resident to occupy one RV, movable tiny house or post-2014 manufactured home per premises as a Temporary Dwelling, but its more relaxed hookup rule ended on June 30, 2026, and the whole ordinance expires three years after its effective date unless extended; confirm current status with the county before relying on it, and it never applies to a general land purchase unrelated to the Park Fire25.
- Tehama County's zoning ordinance applies only in unincorporated areas; land inside the City of Corning or City of Red Bluff follows that city's own zoning instead, as a Corning use-permit hearing for a PQ-zoned parcel illustrates16.
- Only 1.9% of Tehama County's soils rate free of severe limitations for a conventional septic drain field, so do not assume a standard system until Environmental Health evaluates the site7.
Sources
- Tehama County Building and Safety - Permit Information (2026 county census)
- Code Enforcement | Tehama County (2026 county census)
- Tehama County Environmental Health (2026 county census)
- California Business and Professions Code Section 7044 (2026 county census)
- Tehama County Accessory Dwelling Units Quick Guide, quoted and re-checked
- Agricultural Exemption, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Codes and Ordinances | Tehama County, quoted and re-checked
- Permit Information, quoted and re-checked
- Inspection Request Instructions, quoted and re-checked
- Building Official Information Guide - CSLB, quoted and re-checked
- Tehama County Building & Safety Department (tehama.gov)
- Inspection Request Instructions, quoted and re-checked
- Code Enforcement | Tehama County, quoted and re-checked
- Tehama County Planning Department (tehama.gov)
- Tehama County Housing Element, quoted and re-checked
- Tehama County Housing Element, quoted and re-checked
- Tehama County Environmental Health (tehama.gov)
- Tehama County Local Agency Management Plan, quoted and re-checked
- Tehama County Groundwater Ordinance, quoted and re-checked
- Information Bulletin 2016-01: Tiny Homes (California statewide rule), quoted and re-checked
- Information Bulletin 2016-01: Tiny Homes (California statewide rule), quoted and re-checked
- 24-1639 - Urgency Ordinance for Temporary Housing - Park Fire, quoted and re-checked
- 24-1639 - Urgency Ordinance for Temporary Housing - Park Fire, quoted and re-checked
- Title 15—Buildings and Construction, Chapter 15.52—Floodplain Management Regulations, quoted and re-checked
- Transient Occupancy Tax (TOT), quoted and re-checked
- Federal land share: Bolthole Index county data
- Distance to the nearest metro area: Bolthole Index county data
Written September 25, 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.