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Single Family ResidenceResidential
$345,592$288 / 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 89How 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

21 MARLBORO ST

HAMDEN, CT 06517
3
Beds
1
Baths
1,200 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1964
Year BuiltThe year the home was originally built, according to county records.
2
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

$346K
$308K low$383K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,801 (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.$150,360 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$28,560
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$121,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$94,570
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$214,800

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.0.11
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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.

H
Hamden High SchoolC
High · Grades 9–12 · 2.2 mi
E
Spring Glen SchoolA
Elementary · Grades KG–6 · 2.4 mi
M
Hamden Middle SchoolC+
Middle · Grades 7–8 · 3.1 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

21 Marlboro 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 72% of homes in South Central Connecticut County
  • Costs more per square foot than 71% of homes in Hamden 06517
  • Smaller than 75% of homes in Hamden 06517
  • Has a smaller lot than 90% of homes in South Central Connecticut County
  • Newer than 84% 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
$143K$1M

This home is worth more than 32% 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$345,592
CheaperTypical $391,853Pricier

Pricier than 32% of homes nearby

Price per ft²$288
CheaperTypical $266Pricier

Pricier than 71% of homes nearby

Living area1,200 ft²
SmallerTypical 1,527 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.11 ac
SmallerTypical 0.18 acBigger

Bigger than 12% of homes nearby

Year built1964
OlderTypical 1941Newer

Newer than 84% of homes nearby

How 21 Marlboro St ranks against every home in each area.
MeasureThis homeHamden 06517South Central Connecticut County
Estimated valuepricier than$345,59232% of homes28% of homes
Price per ft²pricier than$28871% of homes50% of homes
Living areabigger than1,200 ft²25% of homes27% of homes
Lot sizebigger than0.11 ac12% of homes10% of homes
Year builtnewer than196484% of homes55% of homes

About 21 Marlboro St

How much is 21 Marlboro St, Hamden, CT worth?

The TopHap Estimate for 21 Marlboro St, Hamden, CT is $345,592 as of Aug 30, 2026. The likely range is $308,347 to $382,837. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Marlboro St, Hamden, CT last sell?

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

How big is 21 Marlboro St, Hamden, CT?

21 Marlboro St, Hamden, CT has 3 bedrooms, 1 bathrooms, 1,200 square feet of living space and a 0.11-acre lot.

When was 21 Marlboro St, Hamden, CT built?

21 Marlboro St, Hamden, CT was built in 1964, making it 62 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Marlboro St, Hamden, CT?

21 Marlboro 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 21 Marlboro St, Hamden, CT compare to other homes in Hamden 06517?

Among the 4,947 homes in Hamden 06517, it is worth more than 32% of them ($345,592 against a typical $391,853), its price per square foot is higher than 71% of them ($288 against a typical $266), it is bigger than 25% of them (1,200 ft² against a typical 1,527 ft²), its lot is bigger than 12% of them (0.11 ac against a typical 0.18 ac) and it is newer than 84% of them (1964 against a typical 1941). Measured against all of South Central Connecticut County, it is worth more than 28% 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 21 Marlboro St, Hamden, CT?

The 2024 property tax bill for 21 Marlboro St, Hamden, CT was $7,801. The county assessed it at $150,360.

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