Selling a Home With Unpermitted Work in Roseville, CA

Can you sell a house with unpermitted work in Roseville, CA?

Yes. California has no law preventing you from selling a home with unpermitted work — but you are legally required to disclose it. The Transfer Disclosure Statement asks directly about "room additions, structural modifications, or other alterations or repairs made without necessary permits," and the Seller Property Questionnaire asks you to list those improvements and attach any permits you do have. The real cost usually isn't legal, it's financial: appraisers exclude unpermitted square footage from Gross Living Area, so a 400-square-foot addition without a permit on a median-priced Roseville home can strip $80,000 or more off the appraised value and quietly eliminate FHA and VA buyers from your pool.

By Rich & Kat Farless | August 31, 2026

The converted garage. The enclosed patio that became a bonus room. The bathroom the previous owner added in 1998 with a friend who "knew a guy."

We see this constantly — in older Roseville neighborhoods like Sierra Gardens and Roseville Heights, on Loomis and Granite Bay acreage where a barn quietly became a workshop with plumbing, and in Folsom and Lincoln homes that changed hands three times since the work was done. It's one of the most searched seller questions in California right now, and the panic behind it is almost always the same: does this kill my sale?

Usually, no. But how you handle it decides whether you lose $5,000 or $80,000.
What California actually requires you to disclose
Start with the part that isn't negotiable.

California's Transfer Disclosure Statement (TDS) includes a specific line item for alterations made without permits. Your Seller Property Questionnaire (SPQ) goes further — it asks you to list improvements, identify which ones were permitted, attach copies of those permits, and provide contractor contact information for any work over $1,000.

The legal standard is what you know. If a prior owner enclosed the patio in 1994 and you genuinely have no idea whether it was permitted, you're not committing fraud by not knowing. But California also expects you to conduct a reasonably competent visual inspection of your own property, and a 400-square-foot room that isn't on the county's records is not a subtle thing. If you suspect it, disclose the suspicion. "Seller is unaware whether the sunroom was permitted" is a legitimate, protective answer.

Here's what sellers get wrong most often: selling "as-is" does not erase your disclosure duty. An as-is clause limits your obligation to repair. It does nothing to limit your obligation to disclose. Under California Civil Code section 1102.13, a seller who willfully or negligently fails to perform a disclosure duty is liable for the buyer's actual damages — repair costs, diminished value, lost rent, and in concealment cases, attorney's fees.

That's the asymmetry that should drive your decision. Disclosing unpermitted work costs you some negotiating room. Concealing it exposes you to a lawsuit that can arrive years after escrow closed. We've never once seen a seller regret over-disclosing. If you want the full picture of the forms involved, our guide to what California sellers have to disclose when selling a home walks through the TDS, SPQ, and Natural Hazard Disclosure package in order.
What unpermitted space does to your price — and your buyer pool
This is where the real money is, and it surprises people.

Appraisers follow ANSI Z765 measurement standards and Fannie Mae guidelines, and both point the same direction: square footage that isn't permitted generally can't be counted as Gross Living Area. The appraiser will note the space exists and may give it some contributory value, but it won't be added to your official square footage.

Run the math on a Roseville home. The median sold price here sat right around $630,000 this August. Say your home is marketed at 2,400 square feet at roughly $290 per foot — and 400 of those feet came from an unpermitted addition. When the appraiser drops your GLA to 2,000 feet, you're not arguing about a $10,000 repair credit. You're looking at a six-figure gap between contract price and appraised value.

Your buyer pool shrinks at the same time:

FHA and VA buyers are largely screened out — those programs generally require permanent living space to be permitted.
Conventional lenders often won't finance the unpermitted portion, and some require the work to be legalized before close of escrow.
Cash buyers don't care — which is exactly why they'll offer you less.

And this is happening in a market that already gives buyers room to push. Price reductions in Roseville have climbed from about 9% of listings to more than 23%, with inventory in Roseville, Folsom, and the surrounding submarkets up 15 to 20 percent. Buyers here have options. Handing them an unexplained appraisal problem in the middle of escrow is how a solid deal turns into a renegotiation — or a cancellation. If you've already been through that, our breakdown of what to do when your home appraisal comes in low covers your options once the number is in.
Permit it first, or disclose it and price accordingly?
There's no universal answer. There is a decision framework.

Permit it first when:

The work is structurally sound and would likely pass inspection with modest corrections
The added square footage is large enough to move your appraised value meaningfully
You have 60 to 120 days before you need to be on the market
The unit is an ADU or junior ADU built before January 1, 2020 — see below, because this one is a gift

Disclose and price it when:

The work would require demolition to bring up to code
The space is small — a wet bar, a partial bath, a covered patio — and won't swing the appraisal much
You need to be listed in the next 30 days
The corrections would cost more than the value the square footage would add
The AB 2533 exception for ADUs and garage conversions
If your unpermitted space is an accessory dwelling unit or junior ADU that existed before January 1, 2020, California's AB 2533 changed the calculus entirely as of January 1, 2025. Cities and counties cannot deny a permit for a pre-2020 ADU simply because it doesn't meet current zoning — setbacks, size, or height — and they can't charge impact fees or penalties. The unit is reviewed against a basic health-and-safety checklist rather than a full current-code retrofit, and you can request a confidential third-party inspection before you ever file.

For a converted garage in Roseville or a cottage behind a Loomis farmhouse, this can turn an appraisal liability into a legitimate, financeable second unit. Proof of pre-2020 existence is the hinge — assessor records, old insurance documents, prior escrow paperwork, dated photos, or a notarized letter from a prior owner all work.
Know which building department you're actually dealing with
This trips up more sellers in our market than almost anything else, because Placer County isn't one jurisdiction — it's several.

Roseville, Rocklin, and Lincoln homes go through their own city building divisions. Roseville publishes a specific policy, "Work Commencing Before Permit Issuance," describing how to get approval for work already performed. The Building Division is at 311 Vernon Street and reachable at 916-774-5332.
Granite Bay is unincorporated Placer County. So is much of the land around Loomis. County Building Services has its own after-the-fact construction policy, and investigation of work done without a permit is billed hourly — currently around $156 per hour.
Loomis is the tricky one. A Loomis mailing address can sit inside the incorporated Town of Loomis or in unincorporated Placer County, and the two have separate permitting authorities. We ran into the same split when we wrote about buying a Loomis home on well and septic — verify the jurisdiction before you make a single phone call, or you'll get confidently wrong answers.
Folsom and El Dorado Hills answer to Sacramento County and El Dorado County respectively, with their own fee schedules and timelines.

Statewide, California regulations let a jurisdiction increase permit fees for work started before a permit was issued — but cap that increase at double the normal fee. So the penalty is real, and it's bounded. For a typical Roseville addition, retroactive permitting usually runs a few thousand dollars in as-built plans, plan check, and doubled permit fees, plus whatever corrections the inspector requires.

One consequence sellers rarely anticipate: every building permit issued in Placer County gets reported to the County Assessor. Legalizing an addition triggers a supplemental assessment on the value the addition added. Your existing Proposition 13 base year value doesn't get reappraised — only the new construction does — but there will be a new supplemental bill. If you're selling immediately, that's a rounding error. If you're legalizing and staying put for a few years, run the number first.

Whichever path you choose, get a licensed contractor's written estimate before you list. Sellers who walk into negotiations with a documented number control the conversation. Sellers who walk in with an unknown get whatever the buyer imagines it costs — and buyers always imagine the worst. That dynamic plays out the same way it does with inspection items, which we covered in our guide to negotiating repairs after a home inspection in California.
Frequently Asked Questions
Do I have to disclose unpermitted work if the previous owner did it?

You have to disclose what you know or reasonably should know. If you were never told and the work isn't obvious, you may not have a duty to disclose something you genuinely don't know about. But if the square footage on your listing doesn't match county records, that's a red flag you're expected to notice — and the safest answer is to disclose your uncertainty in writing.

Will a lender refuse to finance a Roseville home with unpermitted work?

Some will, and most will refuse to lend against the unpermitted portion. Conventional lenders often require legalization before close of escrow when the work is significant, and FHA and VA loans generally require permanent living space to be permitted. That effectively narrows your buyer pool to conventional buyers with larger down payments and cash buyers.

How much does it cost to permit an addition after the fact in Placer County?

Expect as-built plans from an architect or engineer, plan check fees, and permit fees that California allows a jurisdiction to double when work began without a permit. Placer County also bills investigation time hourly — currently about $156 per hour. Most straightforward residential legalizations in our market land in the low thousands before any corrective construction.

Will legalizing an addition raise my property taxes?

Yes, on the new construction only. Building departments send permit records to the County Assessor, which triggers a supplemental assessment on the value the addition contributes. Under Proposition 13, the rest of your home keeps its existing base year value — it isn't reassessed because you pulled a permit.

Can I just sell as-is and let the buyer handle it?

You can, and plenty of sellers do. Just understand what you're accepting: "as-is" limits your repair obligation, not your disclosure obligation, and the buyer will price the unknown risk into their offer — usually more aggressively than the actual cost. In this market, sellers who disclose early with a contractor's estimate in hand tend to net more than sellers who let the buyer guess.

Unpermitted work almost never kills a Roseville home sale. Undisclosed unpermitted work does — sometimes at the appraisal, sometimes in a lawsuit two years later. The winning move is to find out exactly what you're working with, get the number in writing, and decide deliberately whether to legalize it or price it in.

That's a judgment call that depends on your home, your timeline, and which building department you're dealing with — and it's exactly the kind of thing we sort out with sellers before a listing ever goes live. If you're ready to talk through your situation, whether you're buying, selling, or just figuring out your next move, Rich & Kat are here to help. Schedule a free consultation at richandkatsoldthat.com/talktous.

About Rich & Kat Farless

Rich and Kat Farless are a husband-and-wife real estate team with over 30 years of combined experience serving buyers and sellers across the Sacramento region. As the #1 husband-and-wife team in Roseville, CA, they specialize in single family, new construction, and luxury properties across Placer, Sacramento, and El Dorado counties. Connect with them at richandkatsoldthat.com.