Nevada County Building Permit Guide (Unincorporated Area)

Permit Authority

This department administers building permits for unincorporated areas of Nevada County. County zoning regulations also state they apply to land uses and development within the unincorporated areas of Nevada County.

Department

Nevada County Community Development Agency, Building Department

Address

950 Maidu Avenue, Suite 170, Nevada City, CA 95959-7902

Phone

(530) 265-1222 Option 1

Email

buildingdept@nevadacountyca.gov

Website

https://www.nevadacountyca.gov/1114/Building-Department

Online Permit Portal

Application Process

1. Research parcel constraints before applying. Use the County Research page, My Neighborhood map, and zoning resources to confirm zoning, snow load, permit history, and site constraints.
2. Prepare the application package. For in-person submittals, bring construction plans, site plans, truss calculations if applicable, engineering calculations if applicable, and septic design or site plans for a new dwelling. For online submittals, create an Accela account, choose the Building module, enter project details, and upload plans plus calculations or miscellaneous documents.
3. Submit the application online through Accela Citizen Access or in person at the CDA counter.
4. Pay intake fees. The County requires plan check fees at application for paper submittals; online full-review applications are reviewed by staff first so fees can be calculated and then paid.
5. Monitor plan review status in the Citizen Access Portal and respond to corrections. The County posts workflow status, notes, and documents in the permit record.
6. After approval, satisfy issuance prerequisites such as site plan approval, Environmental Health approval where required, and outside fees or receipts, then pay remaining permit fees and obtain the permit card.
7. Schedule inspections during construction and obtain final inspection before permit expiration.

Typical processing time: New residences are reviewed in about 4 weeks; most other projects are reviewed in 10 days to 4 weeks depending on project size and type. The online-application handout also says initial application processing is 24-48 hours from receipt for express permits and staff intake of full-review applications.

Source: Nevada County Community Development Agency, Building Department

General Requirements

If the project is not on the County exempt-work list, a permit is required. Typical permitted work includes new residences, additions, remodels, garages, structures with utilities, reroofs beyond the exempt threshold, and other work subject to the California building codes and local amendments.

Required Documents

• Construction plans
• Site plans
• Truss calculations if manufactured trusses are used
• Engineering calculations if an engineer is involved
• Septic design or site plans for a new dwelling
• Completed site plan checklist
• Energy calculations where applicable
• Signed and stamped plans where applicable

Permit validity

Permits are active for one year from issuance and are eligible for one one-year extension based on justifiable cause. County policy also states permits expire if work is not commenced, or is suspended or abandoned, for 180 days at elevations of 5,000 feet and lower, and one year at elevations above 5,000 feet.

Building code

For projects submitted on or after January 1, 2026, Nevada County requires compliance with the 2025 California Building Standards Code, including current Energy Codes, plus local amendments in the Nevada County Land Use and Development Code effective January 1, 2026.

Owner-builder

Owner-builders may perform their own work without workers' compensation insurance only if they do the work themselves or with immediate family and no wages or contracts are involved; otherwise, with proof of workers' compensation insurance, an owner-builder may hire by the hour, use licensed contractors, or use unlicensed persons for up to $500. Owner-builder agents may need an authorization letter and owner-builder verification form.

Contractor requirements

The online application handout requires a licensed contractor number unless the applicant is owner-builder. The owner-builder application form states the applicant is either a California licensed contractor, the property owner, or an authorized agent, and cites the Contractors' State License Law.

Fees

Minimum permit fee

Administrative minimums start at $92.74 for over-the-counter permit processing and $185.48 for non-over-the-counter permit processing under the FY 2025-26 Building Fees schedule.

Plan check fee

Varies by occupancy, type, and square footage under the FY 2025-26 Building Plan Review and Inspection Rates schedule. Example: site-built residence plan review uses a base of $975.62 plus $0.03 per square foot. The plan review fee includes one plan recheck; additional rechecks or plan changes are billed at the department hourly rate.

Permit fee formula

Mixed. Many building permit fees are occupancy- or type- and square-foot-based using the FY 2025-26 plan review and inspection rate tables, while some other items are hourly, per inspection unit, or at cost.

Reinspection fee

Reinspection fee B114 is $185.48 per inspection unit or site visit under FY 2025-26 fees. Reinspection fees must be paid before the next inspection is scheduled.

Penalty (no permit)

Verified code-violation investigations and nuisance-abatement assistance are charged at cost.

Payment note

For paper submittals, plan check fees are due when plans are submitted. At permit issuance, applicants must bring certificates or receipts from applicable outside agencies and pay the remaining balance. The Building Department page also links to an online payment service.

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

Work That Does NOT Require a Permit

• One 200 square foot one-story detached accessory structure, plus unlimited one-story detached accessory structures that do not exceed 120 square feet
• Fences not over 7 feet high
• Retaining walls not over 4 feet high unless supporting a surcharge
• Water tanks on grade up to 5,000 gallons if the height-to-diameter or width ratio does not exceed 2:1
• Sidewalks and driveways
• Painting, papering, tiling, carpeting, cabinets, countertops, and similar finish work
• Prefabricated swimming pools less than 24 inches deep
• Swings and other playground equipment
• Window awnings meeting the code size and support limits
• Detached decks not over 200 square feet, not more than 30 inches above grade, not attached to a dwelling, and not serving the required exit door
• Listed minor electrical, gas, mechanical, and plumbing repair or replacement items on the County exempt-work page
• Certain agricultural structures may be exempt only with site plan review and a letter of exemption from Building and Planning, and only if they meet zoning, size, setback, use, and construction limits stated in the handbook

Important: Nevada County says if a project is not on the exempt-work list, a permit is required. Exempt structures still must meet setbacks and other zoning and fire rules.

Inspections

How to Schedule

• Citizen Access portal (online)
• (530) 265-1222 Option 1 (phone)

Scheduling deadline

Next-day requests are due by 12:00 a.m. the day before. Inspections can be scheduled as much as 15 days in advance.

Inspection hours

Inspections are performed Monday-Friday.

Time windows

The posted inspection time is the start of a two-hour window, and estimated arrival times are available as early as 7:30 a.m. on inspection day.

Typical inspection sequence: Varies by permit type. County materials show typical sequences such as foundation, framing, and final for common building work; deck and final for reroofing; and pre and final for demolition. The permit must also receive a final building inspection before expiration.

Virtual inspections are available for qualifying inspection types through the County virtual inspection calendar and handout.

Additional Resources

• Building code: For projects submitted on or after January 1, 2026, Nevada County requires compliance with the 2025 California Building Standards Code, including current Energy Codes, plus local amendments in the Nevada County Land Use and Development Code effective January 1, 2026.
• Zoning information: View zoning info
• My Neighborhood map
• County code and local amendments
• 2025 building codes and design criteria
• Work exempt from permits
• License lookup guide: California Contractor License Requirements
• Contract template: California Homeowner-Contractor Agreement