Property · Insurance Term
Private Flood Insurance
Definition
Private flood insurance is flood coverage written by a private insurer instead of the National Flood Insurance Program. It can offer higher limits, broader coverage or shorter waiting periods, but terms vary widely from policy to policy.
In Plain English
Standard property policies exclude flood. For a non-residential building, the National Flood Insurance Program (NFIP) caps coverage at $500,000 for the building and $500,000 for contents, and pays commercial contents at actual cash value. Many commercial properties are worth far more than that.
Private flood policies may replace NFIP coverage or sit on top of it as excess flood insurance. Many are written through surplus lines insurance markets. Some include business income or rent loss from flood, which NFIP policies do not.
Federally regulated lenders generally must accept a private flood policy that meets the federal definition of private flood insurance, but they will review the policy. Ask your lender early whether a specific policy will be accepted.
Not sure how your policy handles this? Have us review it, or get a quote.
Example
Hypothetical and simplified: a warehouse in a high-risk flood zone would cost $2 million to rebuild. NFIP can cover up to $500,000 on the building. The owner could add a $1.5 million excess flood policy above NFIP, or buy a private primary policy for the full value, depending on what's available and what the lender accepts.
Why It Matters for Texas Property Owners
Houston and the Texas coast have a long history of flooding from hurricanes and heavy rain, and floods also happen outside mapped high-risk zones. NFIP policies generally have a 30-day waiting period, with some exceptions; private flood waiting periods vary. Either way, buy well before storm season.
What to Watch For
- Compare limits, deductibles, waiting period and exclusions against an NFIP policy.
- Ask whether business income or loss of rents from flood is included.
- Confirm your lender will accept the policy before you drop any NFIP coverage.
- Check the cancellation and nonrenewal terms.
Sources
- FloodSmart (FEMA) — Buy a policy
- FEMA NFIP — Summary of Coverage for Commercial Property
- 12 CFR 339.3 (example federal rule on lender acceptance of private flood insurance)
Last updated October 14, 2026 · Primesure editorial team · How We Write