If my HOA already has flood insurance on the building, do I still need my own flood policy for my unit?

An HOA's master flood policy exists to protect the structure and common elements the association owns, the same way its master property policy does for fire or wind. When a condominium association buys flood coverage through the National Flood Insurance Program, the standard vehicle is the Residential Condominium Building Association Policy (RCBAP), which insures the entire building and common elements as a single unit rather than leaving each owner to buy separate coverage on the shared structure.

What the RCBAP does not do is protect anything an owner would list on a homeowners claim: furniture, electronics, clothing, and other personal property, plus, depending on the master policy's valuation basis, the interior finishes and upgrades inside the owner's own unit. An association that carries a fully compliant RCBAP has done exactly what it is required to do, and an owner who assumes that policy makes them whole after a flood is answering a different question than the one the association's coverage was built to answer.

The RCBAP has a hard ceiling that matters even for the building coverage itself. The maximum NFIP building coverage available for a residential condominium is the lesser of the building's full replacement cost or the number of units multiplied by a per-unit maximum of $250,000. A 40-unit building can reach a total limit of $10 million through the RCBAP, but the underlying math is still a per-unit figure, and if the building's true replacement cost exceeds that calculated maximum, the gap is real and uninsured under the NFIP program unless the association buys excess flood coverage above it.

This is also the same $250,000 ceiling that applies if an individual owner separately buys an NFIP dwelling-form policy on top of the RCBAP: NFIP rules cap combined benefits for a single unit under a dwelling policy and the RCBAP at $250,000 total, so an owner cannot simply stack a second NFIP building policy to escape the cap. Beyond that limit, the private flood market is the only lever left for building-side excess coverage.

Three things typically remain uncovered by even a well-sized RCBAP. First, personal property and contents, which the RCBAP does not touch at all; an owner needs either a personal NFIP contents policy (available up to $100,000 for a residential unit) or a private flood contents policy. Second, betterments and upgrades made after the unit's original construction, a renovated kitchen or an owner-installed built-in, which the RCBAP generally will not reach any more than the master property policy reaches them for a fire loss, since the same single-entity or all-in valuation logic applies. Third, additional living expense, the cost of temporary housing while a flooded unit is repaired, which flood coverage on the master side simply does not provide to an individual owner.

An owner should also check whether their specific unit sits in a location within the building, ground floor, below-grade parking, that carries flood exposure the rest of the building does not share, since a single association can have some units far more exposed than others even under one master RCBAP.

Start with the master policy's flood declarations page: confirm the RCBAP is in force, check the building limit against the current replacement cost, and note whether the association has layered any excess flood coverage above the NFIP primary. That tells you whether the structural side is adequately funded before you size your own coverage.

Then buy to your own exposure. An NFIP or private contents policy sized to what it would actually cost to replace your belongings, plus, if you have made significant upgrades beyond what the master policy's valuation basis reaches, a private flood or all-risk endorsement that specifically covers those betterments. Confirm with your agent whether your unit is inside a FEMA Special Flood Hazard Area individually, since flood maps are drawn at the parcel and structure level and a single community can straddle the boundary even when every unit sits inside the same building.