Buying property on the Big Island of Hawaii is not like buying property anywhere else. The island sits atop two of the most active shield volcanoes on the planet, straddles nine distinct USGS lava hazard zones, and contains neighborhoods where standard insurance carriers have essentially exited the market entirely. For buyers coming from the mainland — or even from Oahu — the insurance landscape on the Big Island can be genuinely disorienting. The single most important thing you can do before going into contract is to treat insurance as a due-diligence item with the same weight as the property inspection.
Why Insurance Must Be a Contingency Item
On the mainland, insurance is typically an afterthought in the purchase process. You sign the purchase agreement, get through inspection and appraisal, and then call your insurance agent a week before closing. On the Big Island, this sequence can cost you a deal — or worse, land you in a property with no insurance options at a cost you can afford.
The reason is lava zone. If the property you are purchasing sits in USGS Lava Zone 1 or 2, the standard admitted insurance market in Hawaii largely will not write coverage. The surplus lines market will — but at substantially higher premiums, with longer processing timelines, and often with coverage exclusions or sublimits on the lava peril specifically. Getting a surplus lines quote can take two to four weeks once you engage a broker who specializes in hard-to-place Hawaii risks. If you are in a 30-day escrow and you have not started your insurance search until day 20, you may not have a binder in hand at closing.
Your purchase agreement should include an insurance contingency that explicitly allows you to exit if you cannot obtain homeowners coverage at a cost within a defined range. Hawaii real estate contracts do not always include this by default. A buyer's agent familiar with Big Island conditions will know to add it.
The Lava Zone and What It Does to Financing
Mortgage lenders require homeowners insurance as a condition of funding. If you cannot obtain a policy at any price, you cannot finance the purchase. For properties in Lava Zone 1 or 2, some lenders apply additional underwriting scrutiny beyond the insurance question. A handful of conventional lenders will not fund mortgages in Zone 1 regardless of insurance availability. Others will fund Zone 1 properties with documentation from a licensed broker that coverage has been bound.
USDA and FHA loan programs have additional restrictions in high-hazard areas. If you are using a government-backed loan, verify with your lender early in the process whether the property's lava zone is compatible with their underwriting guidelines. Conventional loans generally follow Fannie Mae and Freddie Mac guidelines, which do not have an explicit lava zone prohibition, but do require the lender to ensure adequate insurance is in force.
How to Find Your Parcel's Lava Zone
The authoritative source is the USGS Volcano Hazards Program lava hazard zone map. The Hawaii County GIS parcel viewer at gis.hawaiicounty.gov allows you to search by tax map key (TMK) or address and retrieve the zone assignment directly. You want the zone number for the specific parcel, not an approximation based on neighborhood. Parcel boundaries can straddle zone transitions in some areas.
What to Ask Your Insurance Broker Before Making an Offer
Not all insurance brokers in Hawaii have experience placing Big Island high-hazard properties. A broker who primarily works Oahu may not have relationships with the surplus lines carriers who are actively writing Zone 1 and 2 properties. Before you engage a broker for a Big Island purchase, ask:
How many Big Island Zone 1 or Zone 2 properties have you placed coverage for in the past twelve months? What surplus lines carriers are you currently appointed with for Hawaii residential? What is your typical timeline from application to binder for a high-hazard Big Island property? Can you give me a premium estimate based on the lava zone and property characteristics before I go into contract?
A broker who cannot answer these questions with specifics is likely not the right partner for a challenging Big Island placement. The surplus lines market in Hawaii for lava-zone properties includes carriers like Lloyd's of London syndicates, a small number of domestic surplus lines carriers, and specialty programs designed specifically for Hawaii volcanic risk. Access to these markets requires specific appointments that not all brokers maintain.
Roof Age and Permit History
Lava zone is the most dramatic insurability factor on the Big Island, but it is not the only one. Roof age matters enormously in the current market. Most admitted carriers will not write a new policy on a property with a roof older than 15 years. Surplus lines carriers for high-hazard properties often apply the same standard.
Before making an offer on any Big Island property, ask for the permit history from the Hawaii County Department of Public Works and Planning. You want to see the building permit for any roof replacement, not just an assertion by the seller or their agent. In rural areas of the Big Island, unpermitted roof work is more common than on Oahu. A roof that was replaced but never permitted may be treated by an insurer as a roof of the original construction date — which, on an older home, could make coverage unobtainable.
Also review the permit history for any additions, ohana units, or structural changes. Unpermitted structures can complicate insurance placement and can create issues with lenders who appraise the property based on permitted improvements only.
The Surplus Lines Timeline: Plan for 3 to 4 Weeks
If your Big Island property requires surplus lines coverage — as most Zone 1, 2, and 3 properties do — allow three to four weeks from the date you engage a broker to the date you have a binder. The process involves a diligent search of the admitted market (required by Hawaii law before a surplus lines policy can be placed), submission to one or more surplus lines carriers, underwriting review, and binder issuance.
In a standard 30-day escrow, this means starting the insurance process at the same time you start your property inspection. In a 45-day or 60-day escrow, you have more room, but still should not delay past the first week of escrow.
If your lender requires proof of insurance as a condition of funding, and your closing date arrives without a bound policy, the closing will not happen. Lenders do not grant extensions for insurance delays unless the borrower has documented that they began the process in good faith and the delay is attributable to the insurer rather than the borrower. Starting early is your protection against this scenario.
5-Step Pre-Close Insurance Checklist
What Happens If You Cannot Get Insurance
If you have exhausted the surplus lines market and cannot obtain coverage at any cost you can afford — which is a real possibility for some Zone 1 properties in areas with a history of recent lava flow — you have limited options. The Hawaii FAIR Plan is the insurer of last resort for Hawaii properties. FAIR Plan coverage is bare-bones: it covers fire and limited extended coverage perils, with low limits and no liability coverage. It is not a substitute for a standard homeowners policy, but it can satisfy a lender's minimum insurance requirement in some cases, particularly for mortgages held by portfolio lenders rather than government-backed programs.
If the FAIR Plan is your only option, understand what you are accepting: no coverage for theft, no personal liability, low building limits, and no coverage for the additional living expenses you would incur if a loss made the home uninhabitable. Many buyers in this situation reconsider the purchase when they understand the full coverage picture.