City of Twentynine Palms

The Building and Safety Division reviews plans, issues permits, and performs inspections for structures constructed or reconstructed within the city. The city states permit applications for building work must be completed online. Because Twentynine Palms adopted the 2025 California Building Standards Code effective no earlier than January 1, 2026, permit triggers follow the adopted Title 24 codes as locally amended.

Note: The city pages reviewed do not publish a local standalone exemption handout. Because the city adopted the 2025 California Building Code, exempt work generally follows CBC Section 105.2 unless a local amendment applies. Common CBC building exemptions include very small detached accessory structures, limited-height fences, some low retaining walls, certain sidewalks/driveways, finish work such as painting/carpet/cabinets/countertops, some shallow above-ground prefabricated pools, some playground equipment, and qualifying residential window awnings. Exemption from permit does not waive zoning, fire, environmental, utility-clearance, or code-compliance requirements. The city should confirm any claimed exemption before work starts, especially for desert lots with grading, drainage, fire, or utility issues.

Building code

The city adopted the 2025 California Administrative, Building, Residential, Electrical, Mechanical, Plumbing, Energy, Wildland-Urban Interface, Fire, Existing Building, Green Building Standards, and Referenced Standards Codes, plus the 2024 International Property Maintenance Code, effective 30 days after adoption but not before January 1, 2026.

Permit validity

The city pages reviewed do not publish a local permit-expiration summary. Permit validity is governed by the adopted California Building Standards Code and any local amendments in the city's adopted ordinance.

Owner-builder

No city-specific owner-builder summary was located on the reviewed city pages.

Contractor requirements

The city expressly requires all contractors requesting permits or submitting plans to have a City of Twentynine Palms business license. Separately, California generally requires CSLB licensure for contractors when the project requires a permit, uses employees, or meets the state cost threshold.

1. 01
   Create a Citizenserve account and submit the building permit application online through the city's portal.
2. 02
   Upload digital plans and supporting materials for permit or plan-check review.
3. 03
   If a contractor is applying, confirm the contractor has a City of Twentynine Palms business license; staff will require a business license application and fee payment if one is missing.
4. 04
   Staff reviews the application and contacts the applicant if questions or corrections are needed.
5. 05
   After approval, staff emails the issued permit and job card to the applicant.
6. 06
   Schedule required inspections by the 24-hour inspection request line or through the portal if your permit workflow supports online scheduling.
7. 07
   For photovoltaic reviews, the city states a 10 working day plan-review period; for other plan reviews, it states 15 working days.

Typical processing time: 10 working days for photovoltaic plan review; 15 working days for other plan review.

Source: Building and Safety Division, City of Twentynine Palms ↗

Portal users can pay application fees online through Citizenserve; the city fee schedule also notes additional surcharges and agency fees may apply depending on project type.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

• https://www2.citizenserve.com/Portal/PortalController?Action=showHomePage&ctzPagePrefix=Portal_&installationID=367 (online)
• 760-361-5140 (phone)

Inspection hours

The Building Official is available Monday through Thursday, 7:00 a.m. to 9:00 a.m. and 3:00 p.m. to 5:00 p.m., closed 1:00 p.m. to 2:00 p.m.; general City Hall hours shown on the city website footer are Monday through Thursday, 7:00 a.m. to 6:00 p.m.

Typical sequence: Depends on project scope and the issued job card. Inference from the city's permit-and-job-card workflow: inspections are tied to the approved plans and typically proceed by the required milestones listed on the job card.

Source: Building and Safety Division, City of Twentynine Palms ↗