Costa Mesa Code Enforcement Guide for Homeowners and Sellers

Last updated November 13, 2026. Reviewed by the Cash Home Buyers CA team. Information comes from the City of Costa Mesa; sources are listed at the end.

Costa Mesa’s code enforcement staff say they generally respond to a submitted concern within three business days. If you received a notice, the code officer’s phone number and email are at the bottom of it.

Costa Mesa code enforcement at a glance

What do I do if I get a violation notice in Costa Mesa?

Call the officer named on the notice, or the duty officer at (714) 754-5638, and ask what must be fixed and by when. Keep copies of the notice and anything you send back.

How does a code case affect selling a house?

Open violations, especially for work without permits, are usually something buyers and lenders want resolved. Sellers generally have to disclose known problems. See our Costa Mesa building permits guide for permit records.

How to sell a house in Costa Mesa with code violations

1. Read the notice. Note the violation, the deadline and the officer’s contact.
2. Ask the city what closes the case. Corrections, permits or an inspection.
3. Compare options. Fix it, sell with a price credit, or sell as-is to a cash buyer.
4. Disclose honestly. A cash offer does not change what you must disclose.

We buy Costa Mesa houses as they are. See selling a house as-is in Costa Mesa or our Costa Mesa cash-offer process.

Have a notice and not sure what to do? Call (424) 435-2326 or request a cash offer. No cost, no obligation.

Who to call about what in Costa Mesa

Not every neighborhood complaint belongs to code enforcement, and a notice sometimes points you to another agency. The city’s code enforcement page lists these contacts, which is useful if you are trying to clear a problem before a sale:

• Violation notice questions: the code officer named at the bottom of the notice, or the duty officer at (714) 754-5638.
• Noise after hours: Costa Mesa Police non-emergency line, (714) 754-5252.
• Trash cans left in public view and bulk item pickup: Costa Mesa Sanitary District, (949) 645-8400.
• Graffiti: Costa Mesa graffiti hotline, (714) 327-7491.
• Landlord and tenant questions: OC Fair Housing Foundation, (714) 918-8001.
• Mosquitoes and vermin: OC Vector Control, (714) 971-2421.
• Water conservation and quality: Mesa Water District, (949) 631-1200.

What the city’s own numbers say about a typical case

Costa Mesa publishes average workload indicators for code staff. Per fiscal year the city lists about 1,292 code cases generated and 1,130 violations cleared, with 270 administrative citations, 3 inspection warrants, 15 criminal court cases and 2 court-appointed receiverships.

Read plainly, most cases are opened and closed without escalating to a citation or a court, and the court and receivership figures are small. A notice on your house is therefore a problem to answer promptly, not a sign the city is about to take the property. Ignoring it is what moves a case toward citations and court.

Which laws Costa Mesa code officers enforce

The city says staff are directly responsible for Title 20 of the municipal code, which covers property maintenance. They also enforce parts of Title 13 (planning, zoning and development) as it relates to land use, and Title 9 as it relates to business licensing. On the state side, officers enforce California Building Code Section 105.1 as it relates to building permits, and the Health and Safety Code as it relates to substandard housing.

For a seller, the practical point is that a code case can come from three very different places: an overgrown or poorly kept yard under the property maintenance title, work done without a permit under the building code, or a habitability complaint about the structure.

The fix, the paperwork and the inspector are different in each, so ask the officer which category your notice falls into before you decide how to handle the sale.

A seller’s checklist when a code case is open

1. Get everything in writing. Keep the notice, the officer’s email, and any reinspection date. The city says its staff generally respond to submitted concerns within three business days, so follow up in writing and keep the thread.
2. Separate cosmetic items from permit items. Trash cans, debris and weeds are usually quick to clear. Unpermitted work needs a different path; start with our Costa Mesa building permits guide.
3. Check any converted space. A garage or room turned into living space can run into both permit and zoning rules. See the Costa Mesa zoning and ADU guide.
4. Tell your agent or escrow officer early. California’s Civil Code section 1102.1 keeps your duty to disclose material facts in place even in an as-is sale, and a known open case is the kind of fact to raise. See our California as-is and unpermitted work guide.
5. Decide how you want to sell. Clearing the case first can take time and money. A cash buyer can purchase the house with the case unresolved and account for it in the price.

Mistakes that make a code case harder to sell around

• Waiting for a second notice before calling the officer.
• Doing repairs that need a permit without pulling one, which can add a new violation.
• Assuming a tenant’s complaint goes away when the tenant moves out.
• Listing the house without knowing whether the case is open, then learning about it when a buyer’s agent asks.

More Costa Mesa code enforcement questions

Who handles trash cans left in public view in Costa Mesa?

The city lists the Costa Mesa Sanitary District, (949) 645-8400, for trash cans in public view and bulk item pickup.

Does Costa Mesa code enforcement look at work done without permits?

Yes. The city says staff enforce California Building Code Section 105.1 as it relates to building permits, along with property maintenance and land use rules.

Do I have to disclose a code violation when I sell in California?

Section 1102.1 of the Civil Code keeps your duty to disclose material facts in place, even in an as-is sale. A known open case is worth raising with your agent or escrow officer.

Costa Mesa code enforcement FAQ

How do I report a code violation in Costa Mesa?

Call the duty officer at (714) 754-5638 or use the Costa Mesa Connect online form or mobile app.

How fast does Costa Mesa respond to a complaint?

The city says code staff generally respond within three business days, and complex cases can take longer.

Who do I call about noise after hours?

The city lists the Costa Mesa Police non-emergency line, (714) 754-5252.

Can I sell a house in Costa Mesa with an open code violation?

Yes. An open case does not legally stop a sale, but it can slow a traditional one. A cash buyer can purchase the house with the violation unresolved.

Sources

• City of Costa Mesa: Code Enforcement
• California Legislature: Civil Code section 1102.1

This guide is general information, not legal advice. Rules change; confirm requirements with the City of Costa Mesa.