City of Norwalk

Norwalk requires a permit before an owner or authorized agent constructs, enlarges, alters, repairs, improves, moves, demolishes, or changes the use/occupancy of a building or structure, performs grading, or installs/replaces regulated electrical, gas, mechanical, or plumbing systems. The Building and Safety page also states permits are required for new construction, modifications to existing development, and most plumbing, mechanical, and electrical improvements.

• Exempt One-story detached accessory structures for R-3 occupancy under 120 square feet and under 10 feet high, subject to zoning setbacks and Fire Code
• Exempt Wood, chain link, or tubular steel fences, and masonry walls other than pool barriers, not over 6 feet high
• Exempt Retaining walls not over 4 feet high unless supporting surcharge, impounding certain liquids, or within 30 inches of a property line
• Exempt Water tanks on grade up to 5,000 gallons with height-to-width ratio not over 1.5:1
• Exempt Sidewalks and driveways not more than 30 inches above adjacent grade and not over basements, near property lines, or part of required egress/accessibility routes
• Exempt Painting, papering, carpeting, non-shower/tub tiling, cabinets, counters, and similar finish work that does not involve electrical, mechanical, or plumbing work
• Exempt Prefabricated above-ground pools for Group R-3 occupancy under 18 inches deep and up to 5,000 gallons
• Exempt Swings and playground equipment accessory to detached one- and two-family dwellings
• Exempt Minor electrical repair work such as replacing lamps, switches, receptacles, and sockets
• Exempt Portable gas appliances and minor gas-equipment part replacement that does not alter approval or create unsafe conditions
• Exempt Portable mechanical equipment, certain piping within regulated equipment, and replacement of parts that do not alter approval or create unsafe conditions
• Exempt Minor plumbing leak/stoppage repairs that do not require replacement or rearrangement of valves, pipes, or fixtures

Note: Exemptions do not authorize code violations. Separate plumbing, electrical, or mechanical permits may still be required for otherwise exempt building items. Ordinary repairs lose their exemption if they involve structural work, egress changes, or replacement/relocation of regulated piping, wiring, or mechanical work affecting health or safety.

Building code

Norwalk adopted the 2025 California Building Code, based on the 2024 International Building Code, plus local amendments. The city also states it adopted CALGreen and enforces other state and city codes through Title 15.

Permit validity

Permit applications are deemed abandoned after 180 days unless pursued in good faith or a permit is issued; the Building Official may grant extensions of up to 90 days each. Issued permits expire if work does not start within 12 months, or if work is suspended/abandoned for 180 days. Extensions may be granted in writing for up to 180 days each with justifiable cause.

Owner-builder

A permit may be issued to the property owner shown on the grant deed. The owner must show California ID and sign an Owner Builder Declaration accepting responsibility for the project. Norwalk states electrical permits must be issued to a C-10 licensed contractor.

Contractor requirements

Contractors must obtain a City business license, show their state pocket license, and show workers' compensation coverage.

1. 01
   Confirm the project requires a permit and download the applicable forms and handouts from the City's Applications and Online Documentation page.
2. 02
   For eligible permit types, apply through the Citizen Access Portal; for other projects, submit the plan check and permit application and supporting plans/documents to Building and Safety. Applicants can also make an appointment with a Permit Technician in Room 12.
3. 03
   Building and Safety reviews the application, and other City departments may also review plans for compliance with laws under their jurisdiction. Some minor project types may qualify for over-the-counter plan review, subject to staff approval and complete submittal.
4. 04
   Pay required fees. The Building Official issues the permit after confirming code compliance and payment of required fees.
5. 05
   Keep the approved plans on site, complete the work, and request required inspections online or by email. Final inspection is required for the permit to be complete.
6. 06
   If work must be done in an emergency, submit the permit application by the next working business day.

Typical processing time: No general citywide turnaround is published. Norwalk states certain smaller project types may qualify for over-the-counter plan review.

Source: City of Norwalk Community Development Department, Building and Safety Division ↗

Norwalk's fee schedule notes that additional permit processing fees, planning review fees, and fees collected on behalf of other agencies may apply. Valuation may be adjusted by the Building Official using ICC or Marshall Swift valuation data if the application valuation is underestimated.

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

• Online via Citizen Access Portal at (online)
• Online via Citizen Access Portal at https://norwalk.edgesoftinc.com/cap/ or direct inspection request page at (online)
• building@norwalkca.gov (email)
• (562) 929-5733 (phone)

Inspection hours

Inspections are conducted Monday through Thursday from 9:00 a.m. to 5:00 p.m. On open alternative Fridays, inspections are conducted from 9:00 a.m. to 4:00 p.m.

Typical sequence: Norwalk states inspectors visit at predetermined intervals during construction, work may not proceed beyond each required stage without approval, and final inspection is required after all permit work is complete.