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Single Family ResidenceResidential
$389,687$277 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

86 TREADWELL ST

HAMDEN, CT 06517
3
Beds
1
Baths
1,406 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
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

$390K
$351K low$429K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,055 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$213,080 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$62,720
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$150,360
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$142,660
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$304,400

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
Lot (acres)The size of the land the home sits on, from county records.0.12
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
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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

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

H
Hamden High SchoolC
High · Grades 9–12 · 1.3 mi
E
Spring Glen SchoolA
Elementary · Grades KG–6 · 1.5 mi
M
Hamden Middle SchoolC+
Middle · Grades 7–8 · 2.2 mi

District: Hamden School District

Neighborhood · ZIP 06517These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.117
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.68

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
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.14,534
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,380 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,030
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$119,400
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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

86 Treadwell 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.

  • Costs more per square foot than 65% of homes in Hamden 06517
  • Has a smaller lot than 90% of homes in South Central Connecticut County
  • Older than 89% of homes in Hamden 06517

What homes are worth in Hamden 06517

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

This home
$153K$1M

This home is worth more than 52% of homes in Hamden 06517.

How it measures up in Hamden 06517

The dot is this home. The mark in the middle is the typical home in Hamden 06517.

Estimated value$389,687
CheaperTypical $384,781Pricier

Pricier than 52% of homes nearby

Price per ft²$277
CheaperTypical $262Pricier

Pricier than 65% of homes nearby

Living area1,406 ft²
SmallerTypical 1,520 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.12 ac
SmallerTypical 0.18 acBigger

Bigger than 13% of homes nearby

Year built1920
OlderTypical 1941Newer

Newer than 11% of homes nearby

How 86 Treadwell St ranks against every home in each area.
MeasureThis homeHamden 06517South Central Connecticut County
Estimated valuepricier than$389,68752% of homes39% of homes
Price per ft²pricier than$27765% of homes43% of homes
Living areabigger than1,406 ft²40% of homes43% of homes
Lot sizebigger than0.12 ac13% of homes10% of homes
Year builtnewer than192011% of homes16% of homes

About 86 Treadwell St

How much is 86 Treadwell St, Hamden, CT worth?

The TopHap Estimate for 86 Treadwell St, Hamden, CT is $389,687 as of Sep 24, 2026. The likely range is $350,605 to $428,769. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 86 Treadwell St, Hamden, CT last sell?

86 Treadwell St, Hamden, CT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 86 Treadwell St, Hamden, CT?

86 Treadwell St, Hamden, CT has 3 bedrooms, 1 bathrooms, 1,406 square feet of living space and a 0.12-acre lot.

When was 86 Treadwell St, Hamden, CT built?

86 Treadwell St, Hamden, CT was built in 1920, making it 106 years old. It is a colonial home. The building has 2 stories.

What schools serve 86 Treadwell St, Hamden, CT?

86 Treadwell St, Hamden, CT is assigned to Hamden High School (high), rated C; Spring Glen School (elementary), rated A; 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 86 Treadwell St, Hamden, CT compare to other homes in Hamden 06517?

Among the 4,947 homes in Hamden 06517, it is worth more than 52% of them ($389,687 against a typical $384,781), its price per square foot is higher than 65% of them ($277 against a typical $262), it is bigger than 40% of them (1,406 ft² against a typical 1,520 ft²), its lot is bigger than 13% of them (0.12 ac against a typical 0.18 ac) and it is newer than 11% of them (1920 against a typical 1941). Measured against all of South Central Connecticut County, it is worth more than 39% 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 86 Treadwell St, Hamden, CT?

The 2024 property tax bill for 86 Treadwell St, Hamden, CT was $11,055. The county assessed it at $213,080.

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