Selling a Marin County home in a fire zone: what does AB 38 require?

AB 38 is California’s answer to a blunt problem: homes in high-fire-hazard zones changing hands without anyone confirming the property meets defensible-space law. If you’re selling — or administering an estate that’s selling — a Marin property in one of those zones, this requirement belongs at the top of the prep list, because handled early it’s routine, and discovered late it’s an escrow complication.

What the requirement is

For properties in a High or Very High Fire Hazard Severity Zone, the seller must obtain documentation that the property complies with defensible-space requirements and provide it to the buyer. Marin County runs an inspection process for this, and provides an address lookup that tells you in seconds whether a property is in scope (apps.marincounty.gov/FireLookup). Much of unincorporated Marin, the hillside towns, and the wildland-urban edge falls in these zones — but the map, not the neighborhood’s reputation, is the authority.

The timing that matters

The clean sequence is: lookup at the start of listing prep → inspection requested early → any vegetation or clearance work done alongside the rest of the prep → documentation in the disclosure package before the home hits the market. The county’s guidance also recognizes reality: if documentation can’t be provided by closing, the parties can negotiate an agreement — including the buyer taking responsibility for obtaining compliance documentation within one year after close. That flexibility keeps deals alive, but it trades a seller task for a negotiated term in the buyer’s favor, which is rarely the strong side of the table.

Why this hits estate sales hardest

Long-held homes — the ones most often sold by executors, trustees, and adult children — are the ones most likely to carry years of deferred vegetation work. For a fiduciary, AB 38 is also a documentation matter: the selection file should show the requirement was identified early and handled deliberately. It’s one more reason estate properties deserve a listing agent with specific probate and fire-zone experience, a topic we cover in depth in the probate and estate guide.

The agent-selection implication

This is a process requirement, which means it’s a process question for your candidates. An agent who works these zones will have a standing answer for who inspects, who remediates, and how the timeline folds into listing prep. An agent who doesn’t will improvise on your sale. If you’re comparing candidates for a Marin property — from anywhere in the country — that comparison is exactly what we do. Start at the Start Your Match page, or call (650) 773-1578.

Questions people ask

How do I find out if the property needs an AB-38 inspection?

Use Marin County's fire lookup tool (apps.marincounty.gov/FireLookup) — enter the address and it tells you whether the property sits in a High or Very High Fire Hazard Severity Zone and how to request the inspection. Properties served by a local fire district may be directed to that district's process instead.

Can we close escrow before the defensible-space work is finished?

Per the county's guidance, if compliance documentation can't be delivered by closing, buyer and seller can negotiate an agreement — commonly giving the buyer up to one year after close to obtain compliance documentation. That's a negotiated term your agent and attorney should paper properly, not an automatic escape hatch.

We're selling an inherited house in Marin. Does this apply to the estate?

If the property is in a qualifying zone, yes — the requirement follows the property, not the seller. Estate properties are disproportionately affected because deferred vegetation maintenance is common on long-held homes. Build the inspection into the estate's prep timeline early; it's also exactly the kind of process question to put to every listing-agent candidate.

What should I ask listing agents about AB 38?

Ask each candidate: how many AB-38-zone sales have you handled, do you order the inspection before or during listing prep, who manages remediation work and vendors, and how do you handle a sale where compliance won't finish before closing? The answers separate agents who work these zones from agents who will be learning on your transaction.