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Single Family ResidenceResidential
$274,732$245 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $150,000 on Jun 27, 2017

20 WILLIAM ST

HAMDEN, CT 06514
3
Beds
1
Baths
1,120 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$275K
$264K low$286K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Jun 27, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,926 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$166,320 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$43,750
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$122,570
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$107,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$298,229

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.Cape Cod
CountySOUTH CENTRAL CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.17
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

E
Helen Street SchoolD
Elementary · Grades PK–6 · 0.1 mi
H
Hamden High SchoolD+
High · Grades 9–12 · 1.6 mi
M
Hamden Middle SchoolC
Middle · Grades 7–8 · 2.5 mi

District: Hamden School District

Neighborhood · ZIP 06514These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.116
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.67

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.27,862
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,392 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,667
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,642
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.51 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

20 William 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 less than 88% of homes in South Central Connecticut County
  • Costs less per square foot than 73% of homes in South Central Connecticut County
  • Smaller than 80% of homes in South Central Connecticut County
  • Has a smaller lot than 72% of homes in South Central Connecticut County
  • Older than 79% of homes in Hamden 06514

What homes are worth in Hamden 06514

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

This home
$131K$556K

This home is worth more than 21% of homes in Hamden 06514.

How it measures up in Hamden 06514

The dot is this home. The mark in the middle is the typical home in Hamden 06514.

Estimated value$274,732
CheaperTypical $334,462Pricier

Pricier than 21% of homes nearby

Price per ft²$245
CheaperTypical $239Pricier

Pricier than 54% of homes nearby

Living area1,120 ft²
SmallerTypical 1,330 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.17 ac
SmallerTypical 0.23 acBigger

Bigger than 30% of homes nearby

Year built1940
OlderTypical 1957Newer

Newer than 21% of homes nearby

How 20 William St ranks against every home in each area.
MeasureThis homeHamden 06514South Central Connecticut County
Estimated valuepricier than$274,73221% of homes12% of homes
Price per ft²pricier than$24554% of homes27% of homes
Living areabigger than1,120 ft²30% of homes20% of homes
Lot sizebigger than0.17 ac30% of homes28% of homes
Year builtnewer than194021% of homes26% of homes

About 20 William St

How much is 20 William St, Hamden, CT worth?

The TopHap Estimate for 20 William St, Hamden, CT is $274,732 as of Oct 21, 2026. The likely range is $263,722 to $285,742. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 William St, Hamden, CT last sell?

20 William St, Hamden, CT last sold on Jun 27, 2017 for $150,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20 William St, Hamden, CT?

20 William St, Hamden, CT has 3 bedrooms, 1 bathrooms, 1,120 square feet of living space and a 0.17-acre lot.

When was 20 William St, Hamden, CT built?

20 William St, Hamden, CT was built in 1940, making it 86 years old. It is a cape cod home. The building has 1 story.

What schools serve 20 William St, Hamden, CT?

20 William St, Hamden, CT is assigned to Helen Street School (elementary), rated D; Hamden High School (high), rated D+; Hamden Middle School (middle), rated C. All sit in Hamden School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 William St, Hamden, CT compare to other homes in Hamden 06514?

Among the 7,923 homes in Hamden 06514, it is worth more than 21% of them ($274,732 against a typical $334,462), its price per square foot is higher than 54% of them ($245 against a typical $239), it is bigger than 30% of them (1,120 ft² against a typical 1,330 ft²), its lot is bigger than 30% of them (0.17 ac against a typical 0.23 ac) and it is newer than 21% of them (1940 against a typical 1957). Measured against all of South Central Connecticut County, it is worth more than 12% 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 20 William St, Hamden, CT?

The 2026 property tax bill for 20 William St, Hamden, CT was $8,926. The county assessed it at $166,320.

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