Guide 8 of 12

Flood insurance for lake homes

References checked Oct 4, 2026.

Short answer: Most homeowners insurance does not cover flood damage.¹ Look up the home on FEMA's flood map before you sign, ask an agent for a flood quote, and remember that a new policy usually starts 30 days after purchase unless you buy it when closing on a mortgage.²

Why a lake home needs this check

FloodSmart, FEMA's National Flood Insurance Program site, describes flood zones A, AE, AH, AO, AR and A99 as high-risk flood areas, due to proximity to a pond, stream, river or protective barrier under construction.³ It also says everyone lives in an area with some flood risk.³

Step 1: check the flood map

Use the FEMA Flood Map Service Center to look up the address.⁴ Note the flood zone and the map date. If the map shows a high-risk zone, ask your agent what that means for price and requirements.

Step 2: know when insurance is required

FloodSmart says you are required to have flood insurance if you own a home in a Special Flood Hazard Area and have a government-backed mortgage.¹ Some lenders require it even outside high-risk areas.¹ The requirement can also follow the property: if a past owner got federal disaster aid for the home, a later owner is required to carry flood insurance.¹ Ask the seller in writing whether that ever happened.

Step 3: mind the 30-day wait

A new flood policy usually takes effect 30 days after purchase, with exceptions.² There is no wait if you buy the policy while making, increasing, extending or renewing a mortgage.² So arrange the policy with your closing, not after.

Step 4: ask about taking over the seller's policy

FloodSmart says that if you are buying a home in a higher-risk zone, you may be able to assume the prior owner's current NFIP policy.³ The policy may be prepaid through its term, and if its rate is below the full-risk rate, it usually can't rise more than 18% a year until it reaches that rate; a brand-new policy starts at the full-risk rate, less any discounts.³ Ask the seller and your agent whether an NFIP policy exists and whether it can be assigned to you. If you take one over, note its renewal date. FloodSmart says coverage stays good for 30 days after a policy expires, and claims are honored in that grace period as long as you renew and pay the full premium by its end.²

Dams and flooding below them

Pennsylvania requires an Emergency Action Plan for Category 1, 2 and 3 dams, and an EAP contains inundation maps that show emergency managers the critical areas for action.⁵ For Category 1 and 2 dams, the owner must post notices that copies of the EAP are available at county and municipal emergency management offices.⁵ If the home is below a dam, ask whether it is inside the EAP's inundation area. When a dam is proposed as part of a subdivision, DEP's permit must keep buildings off land the dam's maximum pool may flood and require the permit holder to tell buyers about those limits.⁵

If the map changed

FloodSmart says that if your zone changes from low or moderate risk to high risk, you may be required to have flood insurance if you have a government-backed mortgage.³ It adds that if you own property in a high-risk zone without a government-backed mortgage, getting flood insurance is still strongly recommended.³

Building rules in high-risk zones

FloodSmart points to FEMA's NFIP technical bulletin for building requirements in high-risk flood zones, such as foundation openings and floodproofing, and says to talk to your floodplain manager because local rules may be stricter.³ If you plan to add on, finish a basement or rebuild near the lake, ask the township about its floodplain rules before you buy.

Basements and premiums

FloodSmart's homeowner checklist suggests keeping a working sump pump and a water alarm, and notes that homeowners with basements in high-risk flood zones may pay 20% more for flood insurance.⁶ Ask whether the house has a basement and how it has handled heavy rain.

What the seller must disclose

Pennsylvania's disclosure form covers soils, drainage, boundaries and sinkholes, and the condition and location of storm water facilities.⁷ It doesn't give you a flood zone or a premium quote. Get those yourself.

Questions to ask

• What flood zone is the home in, and what is the map date?
• Is there a current flood policy? Can it be assigned to me?
• Did any owner ever receive federal disaster aid for this home?
• Has water ever entered the house, basement or crawl space? When?
• Is the home below a dam, and is it inside the dam's EAP inundation area?

FAQ

Does my homeowners policy cover a flooded basement from the lake?

Usually not. FloodSmart says most homeowners insurance does not cover flood damage.¹ Read your policy and ask your agent.

When does a new flood policy start?

Usually 30 days after purchase. There is no wait when you buy it while making, increasing, extending or renewing a mortgage.²

Can I keep the seller's flood policy?

FloodSmart says you may be able to assume the prior owner's NFIP policy when you buy a home in a higher-risk zone.³ Ask before closing.

Is flood insurance required outside a high-risk zone?

Not by the federal rule for government-backed mortgages, but some lenders require it anyway.¹

Where do I look up the flood zone?

On FEMA's Flood Map Service Center, by address.⁴ Note the zone and the map's date.

Lakes where this comes up

• Arrowhead LakeMonroe County
• Gold Key LakePike County
• Big Bass LakeLackawanna County
• Canadohta LakeCrawford County
• Deer LakeFayette County
• Indian Mountain LakeMonroe County