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Single Family ResidenceResidential
$409,413$243 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

643 THOMPSON ST

EAST HAVEN, CT 06513
3
Beds
1.5
Baths
1,686 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
2.86 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$409K
$382K low$437K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,692 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$200,130 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$78,750
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$121,380
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$200,130
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$140,091

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.42
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
15
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountySOUTH CENTRAL CONNECTICUT
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1988
Lot (acres)The size of the land the home sits on, from county records.2.86
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
East Haven High SchoolD
High · Grades 9–12 · 0.5 mi
E
Deer Run Elementary School
Elementary · Grades PK–2 · 0.6 mi
M
Joseph Melillo Middle SchoolC
Middle · Grades 6–8 · 3.7 mi

District: East Haven School District

Neighborhood · ZIP 06513These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.120
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.35,531
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,689 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$52,010
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,381
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

643 Thompson St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 83% of homes in New Haven 06513
  • Costs less per square foot than 74% of homes in South Central Connecticut County
  • Bigger than 68% of homes in New Haven 06513
  • Among the largest lots in New Haven 06513

What homes are worth in New Haven 06513

Each bar is how many homes fall in that price range. The marker is this home.

This home
$87K$564K

This home is worth more than 83% of homes in New Haven 06513.

How it measures up in New Haven 06513

The dot is this home. The mark in the middle is the typical home in New Haven 06513.

Estimated value$409,413
CheaperTypical $291,393Pricier

Pricier than 83% of homes nearby

Price per ft²$243
CheaperTypical $228Pricier

Pricier than 58% of homes nearby

Living area1,686 ft²
SmallerTypical 1,291 ft²Bigger

Bigger than 68% of homes nearby

Lot size2.86 ac
SmallerTypical 0.17 acBigger

Bigger than almost all homes nearby

Year built1952
OlderTypical 1960Newer

Newer than 41% of homes nearby

How 643 Thompson St ranks against every home in each area.
MeasureThis homeNew Haven 06513South Central Connecticut County
Estimated valuepricier than$409,41383% of homes45% of homes
Price per ft²pricier than$24358% of homes26% of homes
Living areabigger than1,686 ft²68% of homes58% of homes
Lot sizebigger than2.86 acalmost all homes97% of homes
Year builtnewer than195241% of homes37% of homes

About 643 Thompson St

How much is 643 Thompson St, East Haven, CT worth?

The TopHap Estimate for 643 Thompson St, East Haven, CT is $409,413 as of Aug 30, 2026. The likely range is $381,631 to $437,195. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 Thompson St, East Haven, CT last sell?

643 Thompson St, East Haven, CT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 643 Thompson St, East Haven, CT?

643 Thompson St, East Haven, CT has 3 bedrooms, 1.5 bathrooms, 1,686 square feet of living space and a 2.86-acre lot.

When was 643 Thompson St, East Haven, CT built?

643 Thompson St, East Haven, CT was built in 1952, making it 74 years old. It is a colonial home. The building has 2 stories.

What schools serve 643 Thompson St, East Haven, CT?

643 Thompson St, East Haven, CT is assigned to East Haven High School (high), rated D; Deer Run Elementary School (elementary); Joseph Melillo Middle School (middle), rated C. All sit in East Haven School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 Thompson St, East Haven, CT compare to other homes in New Haven 06513?

Among the 7,601 homes in New Haven 06513, it is worth more than 83% of them ($409,413 against a typical $291,393), its price per square foot is higher than 58% of them ($243 against a typical $228), it is bigger than 68% of them (1,686 ft² against a typical 1,291 ft²), its lot is bigger than almost all of them (2.86 ac against a typical 0.17 ac) and it is newer than 41% of them (1952 against a typical 1960). Measured against all of South Central Connecticut County, it is worth more than 45% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 643 Thompson St, East Haven, CT?

The 2025 property tax bill for 643 Thompson St, East Haven, CT was $6,692. The county assessed it at $200,130.

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