River & Coastal Flood
—How deep would the water get in a severe flood?
A depth above roughly 0.3 m (1 ft) at the building footprint usually means structural flood damage, not just a wet yard.
— Water depth in a flood with a 1% chance in any year
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Understand and manage extreme weather and environmental risks for your property.
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These are modelled estimates, not facts about this property. About these estimates
The hazard scores and estimates on this page describe conditions at or near this location. They are not measurements of this house and they do not predict what will happen to it. Different models can produce different results for the same address, and no single model should be treated as definitive. Read the full note.
This property is located in an area where homes sit among or beside open wildland. Wildfires are harder to stop here, so the property is more exposed than the wildfire score alone shows.
This property is located in an area protected by a levee. Levees can be overtopped or fail, and the flood scores on this page take no credit for this one.
This property is located in a region that can experience hurricanes. How strong the wind gets here is scored separately, under Wind.
This property is in a FEMA-mapped high-risk flood area. Flood is not covered by a standard home policy, and a lender will normally require separate flood insurance. Select this to see the zone and what it means.
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Biggest risks at this address
Flooding details
Water reaching the property from rivers, the coast, or heavy rain. 
Elevation Above High Tide
—How far above high tide does this property sit?
Negative or near-zero values indicate land already at or below high tide. Expect nuisance flooding and rising insurance costs.
— Ground height above the local high-tide line
FEMA Flood Zone
—What does the official flood map say?
Any zone beginning with A or V means a mortgage lender requires flood insurance. Zone X is not a guarantee of safety: roughly a quarter of federal flood claims come from outside the high-risk zones.
— Official FEMA designation
Wildfire details
Chance of a wildfire burning at this location.
Wildfire
—How likely is this location to burn?
Insurers increasingly price, or decline, on this. Worth pairing with a look at the defensible space around the house and what the roof is made of.
— Chance of burning in any given year
Wind details
Wind, tornado and straight-line windstorm exposure.
Wind
—How hard does the wind blow here in a bad storm?
Above about 110 mph, roof tie-downs, garage doors and window protection dominate whether a house survives intact.
— Strongest gust in a severe storm
Tornado
—Is this tornado country?
The 25-mile radius reflects how narrow tornado tracks are. It measures the neighborhood’s climate, not the odds for this specific roof.
— Chance of a strong tornado within 25 miles per year
Widespread Thunderstorm Winds
—How often do widespread thunderstorm windstorms hit?
The classic cause of "the whole street lost its trees and power for a week".
— Widespread windstorms per year
Hail details
Large hail, which damages roofs, siding and vehicles.
Large Hail
—Will hail wreck the roof?
Hail is the single largest driver of roof-replacement claims in the central US, and a common reason for high deductibles.
— Chance of 2-inch-plus hail per year
Heat details
Extreme summer temperature and humidity.
Extreme Heat
—How hot does it actually get?
Sets how much cooling the house needs, and in older housing stock, whether it stays habitable through a heat wave at all.
— Hottest day in a typical decade
Heat + Humidity Stress
—Is the heat here the dangerous, humid kind?
Where this runs high, air conditioning is a safety system rather than a comfort, and a summer power cut becomes a health problem rather than an inconvenience.
— Worst combination of heat and humidity
Cold details
Extreme winter temperature.
Extreme Cold
—How cold does it get?
Sets the bar for pipe-freeze protection, insulation, and back-up heat.
— Coldest night in a typical decade
Earthquake details
Ground movement: earthquakes and landslides.
Earthquake
—How hard would the ground shake?
Above about 0.2 g, foundation bolting and cripple-wall bracing are the retrofits that matter most for older houses.
— Ground shaking in a rare, severe earthquake
Landslide
—Is the slope stable?
On sloped ground, elevated values are the point at which a geotechnical report stops being optional. An engineer reads the slope itself rather than the map of it.
— How prone this terrain is to slipping
Air Quality details
How often the air here is unhealthy to breathe.
Air Quality
—How often is the air here unhealthy to breathe?
This is the hazard on the page that acts on the people rather than the building, every year, without a storm to announce it. It matters most for children, older people and anyone with asthma or a heart condition, and it is the one a good filter and a well-sealed house can genuinely reduce.
— Unhealthy-air days a year, with the worst days counted more
Heating and Cooling Costs details
How much heating and cooling this location needs.
Cooling Demand
—What will it cost to keep cool?
This is how much cooling the climate asks for over a whole year, not how hot it gets on the worst day. Extreme Heat answers that. Compare the estimate with your recent utility bills; if you are considering the property, ask for the previous 12 months.
— How much cooling this climate needs
Heating Demand
—What will it cost to keep warm?
Compare this estimate with your recent utility bills. If you are considering the property, ask for the previous 12 months. This measures the climate, not the building’s efficiency.
— How much heating this climate needs
Noise details
How loud it is outside: background sound, road traffic and aircraft.
Outdoor Noise
—How loud is it outside?
Noise is the complaint people make about a house they already bought. It is also the one figure on this page you can check yourself: stand outside at rush hour, and again after dark.
— Average outdoor sound level in the daytime
Could not be fully assessed
No usable result came back for these at this address. That is a limit of the data, not a finding about the property. Nothing below has been ruled out.
Other hazards reviewed show
The property on the hazard maps
Switch the overlay to see how each hazard is mapped around the property. Drag the pin to re-score a different point, which helps when the geocoder lands on the street rather than the building.
Overlay
Use two fingers to move the map.
| Coordinates | — |
|---|---|
| Community The city or county whose flood map covers this point. FEMA calls it the community jurisdiction. | — |
| Expected flood height How high FEMA expects water to reach here in a flood with a 1% chance of happening in any year, including in two consecutive years. Officially the Base Flood Elevation. | — |
| Height measured from The national reference surface that height is measured against. A surveyor needs it; nobody else does. | — |
| Flood map in effect since When the current official flood map for this location took effect. Older maps are likelier to be out of date. | — |
| Flood map panel number The reference number of the official map sheet covering this point. An insurer or lender may ask for it. | — |
| Scanned map sheet FEMA has not converted this area's flood map into digital data. This is the scanned paper sheet that is currently in effect, from FEMA's own map service. | Download the scanned panel → |
| Official FEMA maps FEMA's own map service, where the paperwork for this address can be downloaded. | Open FEMA's map service → |
Insurance policies and state programs vary and can change over time. Check your actual policy and current program requirements before making an insurance or home-improvement decision.
These are modelled estimates, not facts about this property. The hazard scores and estimates on this page describe conditions at or near this location. They are not measurements of this house and they do not predict what will happen to it.
Different models can produce different results for the same address, including results that differ from FEMA maps or other companies' risk scores. No single model should be treated as definitive. For flood insurance, FEMA's official map determines the applicable flood zone, not this report.
Most estimates describe the underlying natural hazard and may not account for levees, seawalls, drainage improvements, building retrofits, or other protection specific to this property. Address locations are also approximate and can fall on the street or elsewhere on the parcel.
Dwellyng is a screening tool, not a survey, inspection, elevation certificate, insurance quote, valuation, or substitute for professional advice. The data sources and methods behind each hazard are published on our methodology page.
Think something here is wrong about this property? Tell us at [email protected]. Local protection or property-specific mitigation is exactly the kind of information broad-scale models can miss, and we would rather know about it.