AB 2533: I Have an Unpermitted Unit in Santa Ana and I Plan to Sell — Should I Legalize It?

If you have an unpermitted unit in Santa Ana and you're getting ready to sell, you've probably stumbled across AB 2533 — California's amnesty law that lets property owners legalize unpermitted ADUs built before January 1, 2020. And now you're wondering: should I use it before I list?

Here's an honest answer.

The Real Fear

You're not really asking about AB 2533. What you're worried about is whether you can even sell with an unpermitted unit — whether the city is going to flag you, whether buyers are going to walk, or whether the whole thing is going to blow up in escrow.

That's a fair concern. But it doesn't mean legalization is the right move before a sale. Let me explain why.

Your Actual Options

Option 1: Legalize it with AB 2533.

On paper, AB 2533 sounds like the clean solution. Local agencies can't deny your permit application outright — they have to give you a path to compliance. But in practice, legalizing an unpermitted unit into a fully permitted ADU typically costs $100,000 or more by the time you've covered structural work, electrical, plumbing, inspections, and contractor fees. It also takes six months or longer, which means you're delaying your sale, carrying the property, and spending six figures on a unit that was already generating income.

For most Santa Ana sellers who want to move their property this year, that math doesn't work. The City of Santa Ana's ADU permit process has gotten more streamlined, but streamlined doesn't mean cheap or fast when there's existing unpermitted work to bring up to code.

Option 2: Sell it the right way — with the right agent.

Here's what I'd actually do.

Pair with an agent who knows how to handle an unpermitted unit. The strategy isn't to hide it — that's a legal problem — it's to disclose it correctly without torpedoing your listing before the right buyers even see it.

Here's how that works in practice:

• Keep it out of the public-facing description. The MLS listing description that feeds Zillow, Redfin, and every other consumer site doesn't need to mention the unpermitted unit. You're not misrepresenting — you're simply not advertising something that will cause uninformed buyers to pass before they understand the full picture.

• Disclose in the private agent remarks. The agent-to-agent remarks field in the MLS is visible to buyer's agents but doesn't syndicate to consumer portals. That's where you note the unpermitted unit — so any agent representing a buyer sees it before showing the property, and you've already started the disclosure process.

• Disclose it in writing in your seller disclosures. This is non-negotiable. California law requires sellers to disclose known unpermitted work on the Transfer Disclosure Statement, regardless of whether you did the work yourself. Your agent will make sure this is documented properly in your disclosures package so you're covered.

And as a buyer reading this: understanding what you're taking on when you purchase a property with an existing ADU situation is just as important as how the seller handles it.

What Loan Types Work

Not every buyer can purchase a property with an unpermitted unit — and that's actually fine, because not every buyer is the right buyer for this sale.

FHA and VA loans are going to be a problem. Those loan programs require the appraiser to flag unpermitted square footage, and the lender may require it to be corrected as a condition of the loan. That's a deal-killer.

Conventional loan offers and cash offers are your best bet. Conventional financing gives appraisers and underwriters more flexibility in how they handle non-permitted space. Cash buyers bypass the appraisal entirely. Either way, you're targeting a buyer pool that can actually close — and how an unpermitted unit gets treated at appraisal is something you need to understand before you're in escrow, not during it.

If you're curious what your property is worth in Santa Ana's current market — with or without the unpermitted unit factored in — the Santa Ana ADU market has been active this summer and there's real comp data to work with. Pricing a property with income units correctly is a different exercise than a standard CMA, and getting that number wrong — in either direction — costs you.

The Bottom Line

You can sell your Santa Ana property with an unpermitted unit. The key is disclosing it correctly, targeting the right buyer pool, and working with an agent who knows how to position it rather than one who's going to panic or over-correct.

If you want to talk through your specific situation — what the unit looks like, what your timeline is, and what your options actually are — reach out to Dylan Serna to schedule a consult. This is exactly the kind of deal that looks complicated from the outside and is very manageable with the right guidance.

Schedule consult through text or call - (714) 860 - 2868