Carson building permits

Verified

Department contacts, adopted codes, permit types, fees, and gotchas for Carson, California.

Last verified 2026-09-21 · Source · Embed this page’s badge · Version history

Building department

Address: 701 E Carson Street, Carson, CA 90745
Phone: (310) 830-7600 is the staffed number and its availability is published as the same window as the counter - "(310) 830-7600, 7 AM - 6 PM Monday - Thursday". A second number is published as "24-hour automated: (310) 952-1700" and WHAT IT DOES IS NOT STATED on the pages read - it is not labelled as inspections, permits or status, so do not assume.
Email: building@carsonca.gov
Office hours: A FOUR-DAY WEEK OF ELEVEN-HOUR DAYS: "7 AM - 6 PM Monday - Thursday", stated identically on both live city domains. That is forty-four hours across four days: long days rather than a short week. Nothing is published about Friday on either page read, so treat Friday as closed and confirm before travelling.
Website: Official site

Codes adopted

California publishes its building standards as Title 24, adopted by state agencies and republished on a three-year cycle. A city or county may change those standards only after its governing body makes an express finding that the change is reasonably necessary because of local climatic, geological, or topographical conditions, and no change becomes operative until the finding and the change have been filed with the California Building Standards Commission.

NO CODE EDITION IS STATED ON EITHER PAGE READ. Two reads of the carsonca.gov page under different framings agree, and the ci.carson.ca.us page names none either. No adoption date, no ordinance number, no municipal code title appears.
SO THE EDITION QUESTION IS SETTLED BY STATE LAW RATHER THAN BY CARSON'S PAGES. Health and Safety Code 18938(b) provides that building standards in the California Building Standards Code apply to all occupancies throughout the state, and the 2025 edition took effect statewide on 1 January 2026. That is the floor in Carson whatever the city adds.
WHAT CARSON ADDS ON TOP IS UNKNOWN FROM THIS RECORD rather than absent. The Carson Municipal Code was not opened here.

Permit types & fees

Building Permit
Carson runs a four-day counter of eleven-hour days and maintains two live city websites that both serve building-permit content, with neither pointing at the other.
See fee schedule

Carson's permit history isn't searchable here yet

This page covers what the permit requires. What we don't have for Carson yet is the record of permits actually issued — the history you'd search by street address. That is a gap in our coverage, not a statement about any particular property.

Your email, and the place — never an address. We only use it to tell you when Carson lands. Privacy.

Tips & gotchas

CARSON RUNS TWO LIVE OFFICIAL WEBSITES AND NEITHER MENTIONS THE OTHER. carsonca.gov and ci.carson.ca.us both serve current Building and Safety content, and the older-looking domain carries no archival or relocation notice. A reader landing on either has no way to tell whether they are looking at the maintained one. THIS RECORD CITES carsonca.gov AS ITS PRIMARY SOURCE, and the reason is the domain rather than the content: carsonca.gov is the city-branded .gov name, while ci.carson.ca.us is the older ci.<city>.<state>.us municipal form. That is a convention, not evidence, and it is stated here so that whoever re-derives this record knows which origin was chosen and on what basis rather than having to guess.
ON THE FACTS THAT APPEAR ON BOTH, THEY AGREE - and that is worth stating because it is the reassuring half. Address, staffed telephone number and the 7 AM to 6 PM Monday to Thursday window are identical across the two. Nothing here suggests the sites contradict each other today; the risk is that nothing keeps them in step tomorrow.
THE COUNTER WEEK IS FOUR ELEVEN-HOUR DAYS: Monday to Thursday, 7 AM to 6 PM, forty-four hours total. An applicant who can only come at 7 AM or 5:30 PM is well served by that; an applicant who needs a Friday is not served at all.
THE STAFFED PHONE HAS THE SAME HOURS AS THE COUNTER, so there is no phone fallback on a Friday. Both are "7 AM - 6 PM Monday - Thursday".
A SECOND NUMBER IS PUBLISHED WITH NO LABEL: "24-hour automated: (310) 952-1700". Neither page says what it does, and this record does not fill the gap by inference. An unlabelled number is a question, not an answer.
A THIRD-PARTY SUMMARY CLAIMS AN OVER-THE-COUNTER SLOT THAT THE CITY DOES NOT PUBLISH. The claim is a Thursday 8:00 AM to 12:00 PM over-the-counter plan check beginning 4 December 2025. A targeted second read of the city page for over-the-counter, OTC, appointment and Thursday returned NOT ON PAGE for every one. It is excluded rather than hedged, because a turnaround a reader can plan around is exactly the kind of claim that must not rest on a summary.
NO CODE EDITION APPEARS ON EITHER PAGE. Not a year, not an ordinance, not a municipal code chapter. The operative standard is the statewide 2025 suite under Health and Safety Code 18938; any Carson amendments are not published where an applicant would look for them.
THE ONLINE PORTAL AND THE INSTRUCTIONS DOCUMENT CARRY DIFFERENT VINTAGES. Carson Civic Access is described as available since 4 June 2024, while an "Instructions to Submit Online" PDF on the older domain is dated 07/2023. Neither was opened for this record; the mismatch is flagged because a 2023 instruction sheet may predate the portal it purports to explain.
NOTHING ABOUT INSPECTIONS IS ESTABLISHED HERE - no booking route, no lead time, no cut-off, no re-inspection rule. That is an absence in two pages, not a finding about the city.