Costa Mesa building permits

Costa Mesa building permits: how it works

We can't prepare Costa Mesa permit documents yet. Joining the list below does not start, submit or speed up a permit, and your information isn't sent to the City. If you need a permit now, apply directly with the City of Costa Mesa through its building division website.

What to know about permits in Costa Mesa

Building permits for homes in Costa Mesa are issued by the City of Costa Mesa's building division, not by the County.
Simple like-for-like replacements (water heaters, HVAC changeouts, re-roofs) usually need a permit but no plans; remodels and additions usually need plan review.
Many Orange County cities now take common residential permits online. Check the City's website for its online permit portal before visiting the counter.

Requirements change; confirm details with the City of Costa Mesa. City of Costa Mesa official website.

Working in a nearby city we already support? Irvine, Anaheim and Rancho Santa Margarita permit packages are available now.

Want us to add Costa Mesa?

Leave your email and we'll send one message if and when we start preparing Costa Mesa permit packages. It helps us decide which city to add next. It won't help with a permit you need today.