Gardena Building Permits Guide for Homeowners

Last updated November 13, 2026. Reviewed by the Cash Home Buyers CA team.

Gardena says a first plan check typically takes about 10 business days and a resubmittal about 5, and simple over-the-counter permits such as fences and water heaters usually turn around in about three business days. This guide explains when a Gardena homeowner needs a permit, how to apply, how inspections are scheduled, and what permit history means when you sell.

Gardena permits at a glance

Department	Building Services, Community Development Department, City Hall, 1700 West 162nd Street, Gardena, CA 90247
Phone	(310) 217-9672 (Building Official and permit technician); City Hall main line (310) 217-9500
Email	building@cityofgardena.org
City Hall hours	Monday to Thursday 7:30 a.m. to 5:30 p.m., Friday 7:30 a.m. to 4:30 p.m.
Over-the-counter help	Deputy Building Official, Tuesday 8:00 a.m. to 4:30 p.m. and Wednesday 1:00 p.m. to 4:30 p.m.
How to apply	Permit application and PDF plans submitted electronically
Typical plan review	About 10 business days first submittal, about 5 for resubmittals (unless a special zoning approval is needed)
Permit validity	180 days, continuing while work is active and progressing
Inspection requests	Inspection request line (310) 217-9510

When you need a building permit in Gardena

The city explains that most residential, commercial and industrial construction and demolition, whether new construction, an addition, a remodel, a repair or an alteration, requires a building permit.

Building Services reviews construction plans for compliance with building codes, issues permits, inspects construction, and enforces the construction codes the city has adopted. Grading, landscaping, mechanical, plumbing and electrical projects are all listed on the city’s permit information page alongside building work.

The city also lists some permits that homeowners overlook. Alarm systems need an alarm permit, with a late fee if the permit is not obtained within 60 days of installation, according to the city’s building permit FAQ. Landscape irrigation systems need a permit even though landscaping itself does not.

Signs and banners, including temporary ones, are regulated under Chapter 18.58 of the Gardena Municipal Code. When a project is unusual or you are unsure whether it needs approval, the Building Official can be reached at (310) 217-9672.

The city notes that many proposed construction activities require plans prepared by a licensed design professional, such as an architect or engineer, and it publishes the supporting forms homeowners and contractors need: a building, mechanical, electrical and plumbing permit application, grading requirements, a water-efficient landscape ordinance information sheet and application, residential low-impact development and EV charger checklists, and a fee schedule effective July 1, 2026.

Step by step: how a Gardena permit works

1. Prepare and submit plans

Before grading or construction can begin, an application and plans must be prepared and submitted to the city in PDF format.

The city reviews them for compliance with zoning regulations, the current building code and other regulations, with the focus on public health and safety issues such as structural integrity, earthquake safety, fire protection and accessibility.

Applications can be emailed to the Building Official with a completed permit application and all supporting documents as PDFs, and the city’s online services page also lists a booking page for new work permit applicants.

2. Plan check and corrections

Unless a special zoning or other approval is required, such as Planning Commission approval, the city says plan check should take about 10 business days on the first submittal and 5 business days on resubmittals.

The Building and Safety Division, Planning, Public Works and other agencies may each need to sign off, and the applicant is notified through the city’s Microsoft Teams channel when review is complete or corrections are required.

Simple projects that are properly documented may be issued over the counter the same day without a plan check.

3. Pay fees and receive the permit

Once plans meet federal, state and local requirements, a permit technician contacts the applicant or designer to collect fees and issue the permit. The city accepts credit and debit cards for plan review payments on some programs, so confirm payment methods when the technician contacts you. Fees follow the city’s current fee schedule, which is effective July 1, 2026 for the 2026-2027 year.

4. Build, and keep the permit alive

A Gardena permit is valid for 180 days, unless work is active and progressing, in which case it stays valid until the project is complete. An older version of the city’s FAQ describes the same idea as substantial progress within six months, so treat a long pause as a risk to the permit and ask the Building Division before restarting a stalled project.

5. Inspections through final

Inspectors review work at various phases of construction to confirm it follows the approved plans and the law. The next section covers how to request them.

How Gardena inspections are scheduled

To request an inspection, call the inspection request line at (310) 217-9510 and state your name, a call-back number, every permit number that needs an inspection, every inspection type needed, and the date and time you want.

The city’s inspections page lists morning inspections between 8:30 a.m. and 12:00 p.m. and afternoon inspections between 1:00 p.m. and 4:30 p.m. Next-day requests may be accommodated, but requests for a Monday inspection cannot be accommodated if left on the voicemail after 2 p.m. on Thursday or anytime Friday through Sunday.

To confirm that your inspection is on the schedule, the city posts a Daily Inspection List on the same page.

The city’s older permits FAQ gives a different phone number, (310) 217-9530, and shorter windows, so use the current inspections page and call Building Services if the two do not match. Either way, plan for at least 24 hours of notice and keep the permit card and approved plans on site.

Preapproved accessory dwelling units

Gardena now preapproves plans for detached accessory dwelling units submitted by designers, architects, builders and other qualified professionals. Preapproved plans are meant to save homeowners the expense of custom drawings and speed review, they are for new construction only, and they still require site-specific plans, studies and engineering.

The property must have or be planned to have a single-family dwelling on a legally zoned residential lot. Changes to a preapproved plan take the project to regular ADU plan review. See our Gardena zoning and ADU guide for the land-use side.

Permits and selling a Gardena house

Permit history matters at sale time. Buyers, lenders and appraisers often ask whether additions, garage conversions or remodels were permitted, and California sellers generally disclose known unpermitted work. Our statewide guide to selling as-is with unpermitted work explains the disclosure rules, and the seller closing costs guide covers what else to budget for.

If your Gardena home has open permits, expired permits or work done without one, you generally have three paths: finish and close the permit before listing, disclose and discount the price on the open market, or sell as-is to a cash buyer who takes the property in its current condition. A practical checklist:

• Ask Building Services for the permit record on your address and note anything open or expired, especially permits that lapsed after the 180-day window.
• List improvements made without a permit, such as converted garages, enclosed patios, added bedrooms or bathrooms, and unpermitted electrical or plumbing work.
• Collect final inspection records, contractor invoices and any correction notices.
• Ask what it would take to legalize each item: drawings, fees, inspections and any zoning approval.
• Compare that cost and timeline with a no-repairs cash sale.

How to sell a house in Gardena

1. Review which work on the property was permitted and which was not.
2. Collect permits, final inspection records and any city notices.
3. Request a no-obligation cash offer for the house as it stands.
4. Choose your closing date.
5. Close with no repairs, permit cleanup or showings required.

Our local pages cover related situations in Gardena, including selling as-is, selling fast and the cash offer process.

Frequently asked questions

How long does Gardena plan check take?

The city says the first plan check typically takes about 10 business days and resubmittals about 5 business days, unless a special zoning or other approval is required.

Can I get a simple permit the same day in Gardena?

The city says simple projects that are properly documented can be issued over the counter the same day without plan check, and typical over-the-counter permits such as fences and water heaters usually take about three business days.

How long is a Gardena building permit valid?

The city states a permit is valid for 180 days, unless work is active and progressing, in which case it remains valid until the project is complete.

How do I schedule a Gardena building inspection?

Call the inspection request line at (310) 217-9510 with your name, call-back number, permit numbers, inspection types and requested date and time. Morning and afternoon inspections are offered.

Can I submit plans by email in Gardena?

The city says permit applications can be emailed to building@cityofgardena.org with a completed application and all documents in PDF format.

Can I sell my Gardena house with unpermitted work?

Yes. You can disclose it and sell as-is, including to a cash buyer. Our statewide guide explains the disclosure rules.

More guides

• We Buy Houses in Gardena
• We Buy Houses in Los Angeles County
• Los Angeles County Property Tax Guide
• Gardena Code Enforcement Guide
• Gardena Zoning and ADU Guide
• All California Guides

Sources

• City of Gardena: Permit Information
• City of Gardena: Building Services
• City of Gardena: Inspections
• City of Gardena: FAQ, Building Permits and Inspections
• City of Gardena: Preapproved ADU Plan Program

This guide is general information from public sources, not legal advice. Confirm current rules with the city.