Buying a new or remodeled home
California rules, checked October 21, 2026
A new or freshly remodeled home can hide problems a quick tour won't show. Check these before you make an offer.
What to check
- Permits. Confirm that each addition, remodel, and ADU has a finaled permit that matches what was built.
- Certificate of occupancy. A new home needs one before anyone can live in it.
- Warranty. Ask for the builder's written warranty. California's Right to Repair Act (SB 800) sets standards for new homes and a process for defect claims.
- Unpermitted space. An unpermitted unit can't be counted as a legal home, and it can be hard to insure, rent, or finance.
- Solar and batteries. Find out whether they are owned, leased, or financed, since a lease or loan has to be transferred or paid off.
- Inspections. Get a general inspection and, for older homes with new finishes, a sewer lateral and foundation check.
Sources: California Civil Code 895 to 945.5 (Right to Repair Act).
General information as of October 21, 2026, not legal or tax advice. Rules change and local ordinances differ. Confirm the details for your property with the agency named above, an attorney, or a tax advisor.
Questions about your home?
Tell Sean what you are weighing. Or call or text 650-400-0686.
FAQs
How do I check permits on a California home?
Ask the seller for permit records and look up the address with the city's building department. Most Peninsula and South Bay cities have an online permit search. Compare what was permitted with what was built.
Who can I talk to about this on the Peninsula or in the South Bay?
Sean Rossiter is a Senior Premier Agent at Redfin based in Mountain View, California DRE #02105207. Call or text 650-400-0686 or email sean@seanrossiter.com.
More guides: SB 9 lot splits and duplexes | ADU law updates | Prop 19 property tax transfers | Property tax when you buy | Prop 13 and reassessment when you remodel | Taxes when you sell | FIRPTA when a seller is not a US tax resident | Seller disclosure updates | All guides