Questions & answers · Flood insurance
My house was being built when the flood came. Does the federal flood policy cover a building under construction and the building materials?
Flood insuranceWho paysChecked Nov 5, 2026
From K.Actuary, founded by Sangmin Kwon, ASA · sources checked 2026-11-05 · Source: FEMA · Standard Flood Insurance Policy, Dwelling Form (44 CFR Part 61, Appendix A(1)) · Art. III.A.4 and A.5 View original ↗
In short
- The federal flood policy can cover a building under construction or repair.
- If it is not yet walled or roofed, coverage depends on whether work is going on.
- Some low-floor cases get no coverage until the building is walled and roofed.
What this means
This answer is about the federal National Flood Insurance Program (NFIP) Dwelling Form policy only.
The policy covers materials and supplies to be used for construction, alteration, or repair of the dwelling while they are stored in a fully enclosed building at the described location or on an adjacent property.
It also covers a building under construction, alteration, or repair at the described location. If the structure is not yet walled or roofed, coverage applies only while the work is in progress, or, if the work is halted, for up to 90 continuous days after that.
There is an extra rule. Coverage does not apply until the building is walled and roofed if the lowest floor is below the base flood elevation in the zones the policy lists. The sources here do not tell you which zone your building is in, so ask your insurer or agent.
Your next step
Ask your flood insurer in writing which rule applies to your building. The policy does not set a deadline for this question.
Check it yourself
Open the eCFR page and find Article III, section A, items 4 and 5.
Where this comes from (1)
[1] FEMA · Standard Flood Insurance Policy, Dwelling Form (44 CFR Part 61, Appendix A(1)) · Art. III.A.4 and A.5 · checked 2026-11-05
4. Materials and supplies to be used for construction, alteration, or repair of the dwelling or a detached garage while the materials and supplies are stored in a fully enclosed building at the described location or on an adjacent property. … 5. A building under construction, alteration, or repair at the described location. a. If the structure is not yet walled or roofed as described in the definition for building ( …
How we found this
We matched your question to 1 official source, quoted the exact lines, and re-checked each quote against its source on 2026-11-05.
What we don’t know yet
Your own plan or notice may say something different. If your letter cites another rule, send it and we will look again.
Every answer is checked against the official rule it quotes.
Information only — not legal advice. Your plan, insurer or agency decides.
This answer quotes the official sources listed above, with the date we checked them. Your own policy, notice and state rules control. We are not your lawyer or your insurer. We don’t file, argue or negotiate claims for you — you send any letter or form yourself.
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Answer id CQ3065. Spotted an error? Tell us.