Does HOA insurance cover earthquake and flood, or are they separate?

A board looking at a master property policy sees the buildings and common elements insured for their replacement cost and reasonably assumes the big catastrophes are covered. Earthquake and flood are the two that are not. The standard property forms that master policies are built on exclude both perils by design, so a shake loss and a rising-water loss each fall outside the base program unless the association has bought a separate policy to pick them up.

That means the answer to whether HOA insurance covers earthquake and flood is not a single yes or no. The master policy covers neither. Whether the community is actually protected against them depends on two separate decisions the board makes on top of the master program, and those two decisions do not work the same way. Flood tends to be forced by a lender and a flood map; earthquake tends to be a discretionary call driven by the governing documents and geography. Treating them as one line item is the first mistake, because the trigger, the form, the deductible structure, and the buyer are different for each.

Earthquake and flood share a trait that makes property carriers unwilling to fold them into a base package: both are catastrophe perils that hit many insured buildings in the same event, in the same place, at the same time. An ordinary fire or burst pipe is an isolated loss the carrier can spread across a book of business. A major quake or a regional flood damages an entire community of buildings at once, so the losses are correlated rather than independent, which is exactly the kind of accumulation a standard property book is not priced to absorb.

Because of that, both perils are underwritten and priced by specialty and catastrophe markets that manage geographic accumulation deliberately. The result for an association is the same in structure even though the mechanics differ: the peril is stripped out of the master policy and, if the community wants the protection, it is added back through a separate placement written specifically for that exposure. A board that assumes the building being insured means the building is insured against everything is reading the declarations page wrong on precisely these two perils.

The most useful way to keep the two apart is to remember what forces the purchase. Flood is frequently mandatory. The Fannie Mae Selling Guide, in section B7-3, requires flood insurance on any project building located in a FEMA-designated Special Flood Hazard Area as a condition of warrantability. When any building sits in that mapped high-risk zone and any unit carries a conventional loan, flood coverage stops being optional, and a building without it makes the units in it non-warrantable, which stalls sales at the lender's insurance review. Flood status is effectively binary and it is set by the flood map, not by the board's appetite.

Earthquake is different. There is no statute and no lender rule that requires an HOA to carry earthquake coverage. Whether the association must buy it is generally driven by the recorded governing documents, the declaration and the CC&Rs, which sometimes require it and sometimes are silent, and otherwise by the board's own read of the seismic exposure. In California the point is often confused because the Davis-Stirling Act requires the association to disclose each year, in the annual budget report, whether earthquake coverage is in force, but that is a disclosure duty, not a mandate to buy. So the first question on flood is what the flood map and the lender say, and the first question on earthquake is what the governing documents say.

The two perils do not just come from different buyers, they are built differently once placed. For a condominium, flood is usually written through the National Flood Insurance Program on the Residential Condominium Building Association Policy, the form that insures the whole building and common elements as one unit, sized to the lesser of the NFIP maximum or the building replacement cost to satisfy the lender. NFIP flood deductibles are flat dollar amounts, and where the NFIP maximum falls short of a large building's full value, a private flood or excess flood layer fills the gap above the primary.

Earthquake behaves like the rest of the master program in almost no respect. It is placed as a standalone earthquake policy, as a difference-in-conditions policy, or by endorsement through a specialty market, and the feature that dominates the decision is the deductible. Earthquake deductibles are a percentage of the insured building value rather than a flat dollar amount, and they run high, commonly in the 10 to 25 percent of insured value range. On a multimillion-dollar building that percentage translates into a very large retained loss the community would have to fund from reserves or a special assessment before the policy pays anything, which is why the buy-or-decline question is a genuine board discussion and why the deductible structure, not the headline premium, is the term worth shopping. Treat these as typical, illustrative figures rather than a quote for any specific association.

Boards sometimes assume earthquake and flood have to be two entirely separate purchases, and often they are, but there is a form built to carry both together. A difference-in-conditions (DIC) policy is a specialty property policy that sits alongside the master program and picks up perils the standard form excludes, most commonly earthquake and flood, under a single contract. For a community exposed to both, a DIC placement can be a cleaner and sometimes more cost-effective structure than stacking a separate earthquake policy and a separate flood policy independently.

The DIC route does not erase the differences that matter, though. Where a building sits in a Special Flood Hazard Area and a lender requires NFIP-equivalent flood terms for warrantability, confirm that the flood portion of a DIC or private program is actually accepted in place of an NFIP policy, because not every private form is treated as a substitute and a warrantability reviewer may still ask for the NFIP policy specifically. And the earthquake portion still carries its high percentage deductible. A DIC can simplify the paperwork, but the board still has to check the flood limit against the lender standard and the earthquake deductible against the current insured value, exactly as it would for two standalone policies.

Handle the two perils on separate tracks. For flood, pull the current FEMA flood map and check each building's zone individually, because a single community can straddle the boundary with some buildings in the Special Flood Hazard Area and others outside it, and flood maps get revised between renewals. For any building inside the zone, confirm an accepted flood policy is in force and sized to the lesser of the NFIP maximum or the building replacement cost, and keep it in the same file as the rest of the warrantability documentation so a lender review clears quickly.

For earthquake, start with the declaration's insurance article. If the governing documents require the coverage, not carrying it is a covenant breach rather than a discretionary risk decision. If it is genuinely discretionary, treat the buy-or-decline as a documented board action: translate the percentage deductible into current dollars before anything else, and where the community declines the coverage, record that it was a deliberate, disclosed decision rather than a lapse and tell owners so they can weigh earthquake coverage on their own HO-6 policies. Whichever way each call goes, the through-line is that neither peril lives in the master policy, so the board has to place, size, and disclose each one on its own terms.