NEW YORK CITY · USA · FEMA FLOOD & RISK INTELLIGENCE

Property Risk in New York City
Post-Sandy Reality

Hurricane Sandy (2012) flooded 17% of NYC's land. Lower Manhattan, Red Hook, Coney Island and the Rockaways are in FEMA Zone AE. Mandatory flood insurance, post-Sandy FEMA remapping, and climate risk are now core NYC real estate factors.

🌊 ZONE AE COASTAL · SANDY-MAPPED · MODERATE SEISMIC
Zone AE
FEMA — coastal flood zone
17%
NYC land area flooded by Sandy
$65B
Sandy damage estimate

New York City Flood Zone Profile

AE
HIGH RISK — Special Flood Hazard Area
FEMA NFIP · Post-Sandy Remapped · 2013+
LIVE API
Primary flood zoneZone AE — 1% annual flood probability (100-yr)
Flood insuranceMandatory in SFHA with federally backed mortgage
Seismic riskLow-moderate — Ramapo Fault system nearby
Hurricane exposureCategory 1–3 direct hits possible · storm surge main risk
Post-Sandy changeFEMA remapped ~35,000 additional NYC properties into flood zones
Building codeNYC Building Code + FloodSmart standards

NYC Boroughs — Flood Risk by Area

Lower Manhattan
Zone AE
Battery Park, Financial District, FiDi flooded in Sandy. Seawalls being upgraded.
Red Hook, Brooklyn
Zone AE
Severely flooded in Sandy. Ongoing resiliency projects. Strong gentrification but persistent flood risk.
Coney Island
Zone AE/VE
Coastal zone. Highest risk in Brooklyn. Storm surge exposure. Sandy-flooded.
The Rockaways, Queens
Zone AE/VE
Peninsula. Sandy caused catastrophic damage. Rebuilt but ongoing coastal risk.
Midtown / UWS / UES
Zone X
Higher elevation. Minimal flood risk. Manhattan's prime residential corridor.
Crown Heights / Flatbush
Zone X
Inland Brooklyn. Higher elevation. No flood zone designation.
Staten Island (coastal)
Zone AE/VE
Sandy's most devastating impact. Oakwood Beach, Midland Beach — some areas bought out by state.
Bronx (most areas)
Zone X
Mostly inland. Some coastal areas near Long Island Sound carry AE designation.
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FAQ — Property Risk in New York City

NYC has extensive FEMA Zone AE and VE areas. After Hurricane Sandy (2012, $65B damage), FEMA remapped ~35,000 additional NYC properties into flood zones. High-risk areas: Lower Manhattan, Red Hook, Coney Island, the Rockaways, and coastal Staten Island. Mandatory flood insurance applies in SFHA with federally backed mortgages.
NYC has low-moderate seismic risk near the Ramapo Fault system. A 1737 earthquake near NYC was estimated at M5.2. USGS assigns a low seismic hazard designation. Older unreinforced masonry buildings common in Brooklyn and the Bronx are more vulnerable. Not a primary risk factor vs flood and hurricane.
Sandy flooded 17% of NYC's land. Many Zone AE properties saw flood insurance costs surge from $400-600/yr to $2,000-8,000/yr under FEMA Risk Rating 2.0. Areas like Red Hook, the Rockaways, and parts of Staten Island saw sales prices decline 10-25% before recovering. Some state-purchased buyout areas in Staten Island were demolished.
Uptown Manhattan above 155th St, most of the Bronx, and inland Brooklyn (Crown Heights, Flatbush, Bushwick) carry Zone X — minimal flood risk. Highest risk: coastal Staten Island, the Rockaways, Red Hook, Coney Island, and Lower Manhattan below Wall Street.

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