Sierra County Building Permit Guide (Unincorporated Area)

Permit Authority

The Building Inspection Division serves unincorporated Sierra County and states that city-area building requests in Loyalton are handled through the city.

Department

Department of Planning and Building, Building Inspection Division

Address

101 Courthouse Square, P.O. Box 530, Downieville, CA 95936

Phone

(530) 289-3251

Email

building@sierracounty.ca.gov

Website

https://www.sierracounty.ca.gov/194/Building

Online Permit Portal

Application Process

1. Contact the Building Department at (530) 289-3251 before beginning a building or remodeling project.
2. Gather required submittal documents from the County Forms and Policies index, including BD-01 and any work-specific checklists or forms.
3. Assemble a complete package with project scope, APN, valuation, drawings, related system permits, and required signatures.
4. Submit the complete submittal package to the County.
5. Pay filing and plan review fees.
6. Respond to review comments, then receive permit issuance.
7. Request inspections as construction proceeds.

Typical processing time: No general countywide processing-time estimate for standard building permits was found. The EVCS ordinance page notes a streamlined electronic route for EVCS only.

Source: Department of Planning and Building, Building Inspection Division

General Requirements

Sierra County Code Section 12.04.050 requires a permit for construction, erection, enlarging, alteration, repair, demolition, conversion, moving, improvement, and use of any building or structure, including septic systems.

Required Documents

• BD-01 Building Permit Application
• BD-02 Authorization to Act on Property Owner's Behalf for agent applications
• BD-03 Owner-Builder Notice/Certification and BD-04 Owner-Builder What to Know for owner-builder applications
• Work-type requirements via checklists and forms such as BD-05, BD-08, BD-10, BD-11, BD-19, and BD-20
• Valuation information
• Site plan information
• Separate environmental health review and approvals when required, including septic systems

Permit validity

The County fee schedule indicates expiration and renewal standards tied to progress and inspection activity, and OWTS-related permit references also discuss a 180-day permit validity context.

Building code

Sierra County Building Division applies the California Building Code framework through Sierra County Code Part 12, plus related local requirements.

Owner-builder

Owner-builder applications require signed owner-builder forms. Owner-builders assume responsibility and must meet legal obligations, including licensing, employment, and coverage responsibilities where applicable.

Contractor requirements

Non-owner-builder permits require a contractor declaration in BD-01, and contractors must provide license details.

Fees

Plan check fee

70% of the computed building fee.

Permit fee formula

Base permit fees use valuation inputs and Table 1-A values; mechanical, plumbing, and electrical permits have fixed application fees; grading has minimum plus cubic-yard and inspection components.

Reinspection fee

$65 per hour. First reinspection is often included per permit context in the fee notes.

Penalty (no permit)

Expired permit conditions can trigger additional charges.

Payment note

The county publishes online payment pathways via PointandPay and identifies convenience charges for certain online payment methods.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

Contact the Department of Planning and Building, Building Inspection Division to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

• (530) 289-3251 (phone)

Inspection hours

Monday-Friday, 8:00 AM to 5:00 PM, closed noon-1:00 PM

Typical inspection sequence: Typical sequence is plan submittal and review, permit issuance, inspections during construction, final inspection, and closeout.

Additional Resources

• Building code: Sierra County Building Division applies the California Building Code framework through Sierra County Code Part 12, plus related local requirements.
• Zoning information: View zoning info
• Forms and Policies
• Building Code
• Payments
• County Ordinance Code
• County Master Fee Schedule
• BD-01 Building Permit Application
• BD-03 Owner-Builder Notice and Certification
• BD-04 Owner-Builder What to Know
• County Document
• License lookup guide: California Contractor License Requirements
• Contract template: California Homeowner-Contractor Agreement