Flood and storm insurance when downsizing in New York

This is general information, not insurance, legal or financial advice. An insurance agent licensed in New York can quote and place coverage for a specific address. Nothing here says any neighborhood is or is not at risk.

NYC evacuation zones vs FEMA flood zones

Two kinds of map get confused, and homebuyers need both.

Hurricane evacuation zones are an emergency management tool. New York City has six, ranked by storm surge risk, and zone 1 is the most likely to flood. You can look up an address with the Hurricane Evacuation Zone Finder or by calling 311, and NYC Emergency Management explains the zones. The zones were updated for the 2021 hurricane season, and the city said about one million New Yorkers changed zones (NYC Emergency Management, 2021). Zones can change, so look up the address each time you consider a home. The city also advises against car travel during an evacuation.

FEMA flood zones come from flood insurance rate maps. FEMA describes its Flood Map Service Center as the official online location for flood hazard mapping products created under the National Flood Insurance Program, and the maps are at msc.fema.gov. Insurance rates and any mortgage flood requirement follow these maps, not the evacuation zones.

The NYC Department of City Planning has a Coastal Flood Hazard Mapper, and the city has a flood maps information page. That page describes 2007 maps as the effective ones for insurance rates, preliminary maps released in January 2015 and FEMA's October 2016 agreement to revise them. Maps get revised, so for the current flood zone and insurance requirements for an address, go to FEMA.

An address can sit in an evacuation zone and outside a FEMA flood zone, or the reverse. Check both, and ask the seller's side what insurance the home carries today.

What Hurricane Sandy did in New York City

Sandy is the reference storm for most New York flood questions. FEMA declared a major disaster (FEMA-4085-DR-NY) on October 30, 2012, with an incident period of October 27 to November 8, 2012. The designated counties included the Bronx, Kings, Nassau, New York, Queens, Richmond, Suffolk and Westchester.

The city's post-storm report, A Stronger, More Resilient New York (2013), records these figures:

• Sandy made landfall at Brigantine, New Jersey, at 7:30 p.m. on October 29, 2012, with 80 mph winds.
• The storm tide at the Battery was over 14 feet above Mean Lower Low Water. The previous record was about 10 feet, in Hurricane Donna in 1960.
• 51 square miles of the city, 17 percent of its land area, flooded. Only 33 square miles were then in the FEMA 100-year floodplain.
• 43 people died in the city, and 88,700 buildings were in the inundation zone.

The gap between the flooded area and the mapped floodplain is why buyers should not treat a flood map as the whole picture.

The National Flood Insurance Program: waiting period and lenders

According to FEMA, the National Flood Insurance Program is sold through private insurers and NFIP Direct and is available to anyone in a participating community. Most homeowner policies exclude flood. A new policy typically has a 30-day waiting period. Federally backed mortgages in high-risk areas require flood insurance.

Three practical consequences for a downsizer:

• Start early. The waiting period means you cannot buy a policy the week of closing and be covered. Ask your attorney and insurance agent what the timing means for your contract.
• The lender decides part of it. If a mortgage is involved and the property falls in a designated high-risk area, the lender will require flood coverage. If you pay cash, no lender requires it, but the exclusion in your homeowner policy still leaves the home without flood cover.
• Existing requirements can follow the property. The Department of State's disclosure form notes that federal disaster assistance triggers a flood-insurance requirement that passes to future owners.

The flood questions on New York's seller disclosure form

Since a 2023 amendment took effect in 2024, sellers of one to four family homes must deliver a Property Condition Disclosure Statement with flood questions. The 2025 form asks whether the property is in a FEMA-designated floodplain, the Special Flood Hazard Area or a Moderate Risk Flood Hazard Area, whether flood insurance is required, whether federal flood assistance was received, whether the home has flood insurance or a FEMA elevation certificate and whether a flood claim was ever filed. A further question covers water penetration from seepage or a natural flood event.

Ask for the completed statement before you sign a contract, read every flood answer and ask your attorney about anything marked "unknown." Condo and co-op apartments are not covered by this statute. Our seller disclosures guide covers the form, the 2025 PDF and what it says about liability.

FloodHelpNY: help for New York City homeowners

FloodHelpNY is run by the Center for NYC Neighborhoods, a nonprofit. As of September 2026 its site lists free home resilience audits, sewer backwater valve installation, elevation certificates, flood insurance counseling and retrofits. Eligible coastal areas named on the site include Lower Manhattan, Rockaway East, the Southeast Brooklyn Waterfront, Gravesend, Bensonhurst, Howard Beach, Gerritsen Beach and Sheepshead Bay. The site says the program is funded in part by federal housing disaster recovery funds, the Mayor's Office of Climate and Environmental Justice and the Department of Housing Preservation and Development.

Eligibility and availability change. If you are buying in or near those areas, check the site for your address and ask what it offers a new owner.

NYPIUA: the state's residual property insurance pool

If a home is hard to insure in the regular market, one option is the New York Property Insurance Underwriting Association. The Department of Financial Services describes NYPIUA as an association of all insurance companies that sell fire insurance in New York State. It offers Dwelling Fire forms, DP-01 (basic) and DP-02 (broad).

Two limits matter. First, NYPIUA policies do not include liability, flood or theft coverage. You would need those from other sources. Second, the amounts are capped. On its dwelling fire page, the maximum for an occupied one to four family dwelling is $600,000 for the building, $250,000 for personal property and $50,000 for rental value. Vacant dwellings are limited to $100,000 with a 5 percent deductible. Check that page for current limits, since a home could be worth more than the building limit.

Who qualifies, and whether an applicant must first be turned down by other insurers, are questions for NYPIUA or an insurance agent. Its FAQ refers to Insurance Law Article 54. Call NYPIUA at (212) 208-9700 or ask an insurance agent.

C-MAP: the Coastal Market Assistance Program

C-MAP, administered by NYPIUA, is still listed on its C-MAP page. It is a voluntary network of insurers and producers that helps coastal homeowners find coverage. The Department of Financial Services says a homeowner must first have a non-renewal, cancellation or conditional renewal notice for a reason other than non-payment. The program is codified in Insurance Law section 5414, and the statute text refers to property within one mile of the shore, with NYPIUA allowed to adopt broader standards.

A NYPIUA brochure describes a wider geography: the south shore of Long Island, Brooklyn, Queens, Staten Island and the forks within one mile of the shore, and the north shore of Long Island, the Bronx and Westchester within 2,500 feet. It also lists new purchasers as eligible and says the program covers one to four family owner-occupied homes, apartment units and condo units. Coverage areas and eligibility can change, so ask NYPIUA at (212) 208-9898 whether an address qualifies.

Condo vs co-op insurance according to DFS

The Department of Financial Services guide for homeowners and tenants (2020 edition) draws these lines:

• Standard homeowner and unit policies exclude flood, which is insured separately under the NFIP.
• A condo (HO-6) policy generally covers contents and property inside the unit, such as alterations, appliances, fixtures, improvements and interior walls. The building and common areas are typically insured under the association's policy.
• Loss assessment coverage covers certain assessments the association may make after a covered loss.
• A co-op or tenant (HO-4) policy covers contents and personal liability. Building insurance is usually the building owner's responsibility.

The guide tells owners to compare their own coverage with the association's. What a specific building's policy covers, and whether the building has flood cover, is a question for the managing agent. Ask for a certificate and the building's insurance summary. Buying an apartment does not remove the question, it changes who to ask. See our guide to buying a co-op or condo for the rest of the building documents.

Long Island: Suffolk and Nassau

Long Island has its own county-level tools. Suffolk County publishes a Storm Surge Zone Interactive Map. The county says storm surge zones are on both the north and south shores and the eastern forks, and it invites people who need help evacuating to register with its Emergency Preparedness Registry.

Nassau County: use FEMA's Flood Map Service Center for flood zones, and confirm evacuation and storm surge information with Nassau County's emergency management office directly.

If you are looking at the 55+ communities on Long Island, the same questions apply as for a house or apartment. Ask each community what the association insures and what you must insure yourself. Start from the 55+ communities page. In New York City, look up any address in the neighborhoods we cover with the finders above before you tour.

Before you make an offer

• Look up the address in the NYC evacuation finder, the Suffolk map or the county's office for Nassau
• Look it up in FEMA's Flood Map Service Center
• Read the seller's flood answers and ask for any policy, claims history or elevation certificate
• Get an NFIP or private flood quote, and note the 30-day wait
• Ask an insurance agent whether the home can be insured in the regular market
• If it is an apartment, ask for the building's insurance summary and certificate
• Ask your attorney how flood findings affect your contingencies

Next steps

Insurance costs belong in the total picture. The costs and money page and the net proceeds calculator help you plan, and the step-by-step guide shows where insurance fits. When you are ready to look at homes, you can ask to be introduced to an agent on the eXp Realty operating team.