Homeowners Association Flood Insurance

What the RCBAP covers, and what it does not

The Residential Condominium Building Association Policy is the National Flood Insurance Program’s master form for residential condominium associations. It insures the building itself — structure, fixtures, machinery and equipment servicing the building, and improvements within units — on a replacement cost basis, plus commonly owned contents.

What it does not do is scale with the building. The limit is fixed at $250,000 per unit regardless of what the units are worth or what the building would cost to rebuild.

The coinsurance clause most boards miss

This is the single most expensive detail in association flood insurance, and it is the reason an underinsured building can produce a shortfall far larger than the gap in the limit.

An RCBAP must be written for at least 80% of the building’s replacement cost value. FEMA is explicit that this is unique to this policy form — coinsurance applies only to building coverage under the RCBAP (FEMA FloodSmart, NFIP definitions). Fall below that and the NFIP applies a coinsurance penalty: it pays the same proportion of every covered loss as the proportion by which the building was insured. A building insured to 60% of replacement cost when it should have been at 80% recovers roughly three-quarters of an otherwise covered claim — on a $400,000 loss, that is a six-figure difference, on a claim that was never disputed.

Two things follow. Get a current replacement cost valuation rather than relying on the assessed value or the figure from the last renewal, and reconcile the RCBAP limit against it every year. Construction costs have moved substantially; a limit that satisfied the 80% test three years ago may not today.

Where the master policy stops and unit owners begin

An RCBAP does not remove the need for unit owners to carry their own cover. It leaves at least three gaps.

Personal contents. Commonly owned contents are covered to $100,000 across the whole association. Everything inside a unit that belongs to the resident is not covered at all.

Loss assessment. When a flood loss exceeds the master policy limit, the association assesses unit owners for the balance. A unit owner’s own policy may respond to that assessment; the master policy does not.

Improvements and betterments. Depending on how the declaration allocates responsibility, upgrades made inside a unit may fall outside the master policy.

Read the association’s declaration before assuming which side of the line an item sits on. Bare-walls, single-entity and all-in declarations divide responsibility very differently, and the flood programme follows the declaration rather than any general rule. Our condo owner and renter flood insurance page covers the unit-owner side.

When a private master policy makes more sense

Private carriers write association flood outside the NFIP’s statutory ceiling, which matters most for buildings where $250,000 per unit is visibly short of replacement cost. Beyond the limit itself, private forms can offer ordinance-or-law cover for rebuilding to current code, loss-of-assessment cover, and higher commonly owned contents limits.

A private policy is also individually underwritten rather than rated off a table, so a building with favourable first-floor elevation, recent flood mitigation, or a clean claims history can price better than its zone would suggest. Under Risk Rating 2.0 the NFIP prices on building characteristics too, but the private market applies more of them and can act on documentation an association supplies.

The practical approach is to price both and compare like for like: same replacement cost basis, same deductible, and a clear reading of what each form does with ordinance-or-law and assessments.

What an underwriter will ask for

Having these ready shortens the quoting process considerably:

Number of units and the residential share of total floor area. Year built, construction type and number of storeys. A current replacement cost valuation. First-floor height relative to base flood elevation, and an elevation certificate if one exists. Flood zone and community — check the current designation on FEMA’s flood zone lookup rather than relying on the last renewal. Prior flood losses. The current master policy declarations page. Whether the association has any flood mitigation in place — floodproofing, relocated mechanicals, drainage work.

An elevation certificate is worth obtaining even where it is not required. It is the single document most likely to move a private quote in the association’s favour.

Frequently asked questions

Is flood insurance required for an HOA?
There is no blanket requirement. It becomes mandatory when the building sits in a high-risk zone and carries a federally backed mortgage, and many governing documents require it independently. Lenders financing individual units in the building may also require the association to maintain it.

Does the RCBAP cover unit owners’ belongings?
No. It covers the building and commonly owned contents. Personal property inside a unit needs the unit owner’s own policy.

What happens if the association is underinsured?
Below 80% of replacement cost, the NFIP’s coinsurance clause reduces every claim payment proportionally — not only the amount above the limit. This is the most common and most expensive error we see on association policies.

Can a mixed-use building get an RCBAP?
Only if at least 75% of total floor area is residential. Below that the building is rated as non-residential and capped at $500,000, which is usually well short of what a mixed-use building needs.

Is flood cover worth it outside a high-risk zone?
Often, yes. FEMA reports that from 2014 to 2024, 29% of NFIP claims came from outside high-risk flood areas (FEMA, FloodSmart.gov). A multi-unit building concentrates a great deal of value at a single elevation.

See what flood cover costs across the states we write in our flood insurance cost by state report, or read how excess flood insurance stacks above a maxed-out NFIP limit.