Buying a Home in a Flood Zone: When Your Lender Requires Flood Insurance
Learning goal: Know what a high-risk flood zone is, when a lender requires flood insurance, and why flood risk exists outside those zones too.
Short answer
If the home is in a high-risk flood zone and you have a government-backed mortgage, you must buy flood insurance. High-risk zones start with the letters A or V on FEMA maps. Homeowners insurance usually excludes flood, so this is a separate policy. Buying it as part of the mortgage means there's no 30-day wait.
Read to the end to complete this lesson.
On this page
The Fuller Picture
Flood insurance often comes up for the first time a few weeks before closing, when the lender checks the flood map. Knowing what triggers the requirement, and that floods also happen outside high-risk zones, helps you budget for it and decide whether to buy it even when it isn't required.
Key Takeaways
- FEMA: "High-risk flood areas begin with the letters A or V on FEMA flood maps. They are also known as special flood hazard areas (SFHAs)."
- "If you own a property in a high-risk zone and have a government-backed mortgage, you must purchase flood insurance," FEMA says.
- "There is no wait if you buy flood insurance while making, increasing, extending or renewing a mortgage," per FEMA.
- FEMA notes almost one-third of NFIP flood claims from 2014 to 2024 came from outside high-risk flood areas.
- Homeowners policies generally exclude flood, so it's a separate policy.
Real-World Example
A zone AE surprise
Two weeks before closing, Noah's lender tells him the house he's buying sits in flood zone AE, a high-risk zone, and his FHA loan requires flood insurance. He buys an NFIP policy through an agent as part of the closing, so it starts on closing day without the usual 30-day wait. He adds contents coverage too, since building coverage doesn't pay for his furniture.
Common Mistakes
- Assuming the homeowners policy covers flooding.
- Waiting until after closing and facing a waiting period.
- Skipping flood insurance because the home is outside a high-risk zone, without weighing the risk.
Interactive Exercise
Check flood before closing
Do this as soon as you have an accepted offer.
Tick each step as you do it. Your checklist is saved in this browser.
Knowledge Check
Question: A home is in FEMA flood zone AE and the buyer has a government-backed mortgage. What does FEMA say?
Recommended Insurpedia Tools
- Insurance Preparedness Checklist: Twelve insurance questions worth having an answer to, with a place to learn more about each one you have not looked at yet. No score.
Related Insurance Terms
Related Scenarios
Questions to explore next
Questions readers often ask next about this topic:
- How do I find my home's flood zone?
- How much does flood insurance cost?
- Do I need flood insurance outside a flood zone?
See every lesson in the First-Time Homeowner journey.
Explore the journey →Sources
The factual claims on this page were checked against these sources. Rules and figures change, so check the source itself if you need to confirm the current version.
- What is my flood risk?FEMA, National Flood Insurance Program (FloodSmart)
- Buy a flood insurance policyFEMA, National Flood Insurance Program (FloodSmart)
Educational information, not advice: This lesson is for general education only, not legal, financial, or insurance advice. Actual coverage, discounts, and requirements depend on your policy’s wording, your insurer, and the laws of your state. Confirm specifics with your own insurer or a licensed agent before making a decision. Insurpedia does not sell insurance and does not recommend specific insurers. Flood zone and requirement points come from FEMA's FloodSmart site.