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Single Family ResidenceResidential
$497,162$529 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

20 TERRACE AVE

GROTON, CT 06340
1
Beds
1
Baths
939 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.
0.48 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.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$497K
$456K low$538K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$497,162
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$397,730

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,227 (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.$160,230 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$145,677
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$14,553
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$160,230
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$112,161

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.30
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
48
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
80
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
16
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
CountySOUTHEASTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.48
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Elevator

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

E
Mystic River Magnet SchoolC
Elementary · Grades PK–5 · 0.9 mi
H
Robert E. Fitch High SchoolC
High · Grades 9–12 · 2.1 mi
M
Groton Middle SchoolC
Middle · Grades 6–8 · 2.1 mi

District: Groton School District

Neighborhood · ZIP 06340These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.56

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.27,657
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.992 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,998
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$95,942
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.56%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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 Terrace Ave 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 68% of homes in Groton 06340
  • Costs more per square foot than 97% of homes in Southeastern Connecticut County
  • Smaller than 90% of homes in Southeastern Connecticut County
  • Has a bigger lot than 79% of homes in Groton 06340
  • Older than 77% of homes in Southeastern Connecticut County

What homes are worth in Groton 06340

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

This home
$201K$1.8M

This home is worth more than 68% of homes in Groton 06340.

How it measures up in Groton 06340

The dot is this home. The mark in the middle is the typical home in Groton 06340.

Estimated value$497,162
CheaperTypical $390,763Pricier

Pricier than 68% of homes nearby

Price per ft²$529
CheaperTypical $286Pricier

Pricier than 92% of homes nearby

Living area939 ft²
SmallerTypical 1,411 ft²Bigger

Bigger than 13% of homes nearby

Lot size0.48 ac
SmallerTypical 0.28 acBigger

Bigger than 79% of homes nearby

Year built1940
OlderTypical 1960Newer

Newer than 24% of homes nearby

How 20 Terrace Ave ranks against every home in each area.
MeasureThis homeGroton 06340Southeastern Connecticut County
Estimated valuepricier than$497,16268% of homes68% of homes
Price per ft²pricier than$52992% of homes97% of homes
Living areabigger than939 ft²13% of homes10% of homes
Lot sizebigger than0.48 ac79% of homes47% of homes
Year builtnewer than194024% of homes23% of homes

About 20 Terrace Ave

How much is 20 Terrace Ave, Groton, CT worth?

The TopHap Estimate for 20 Terrace Ave, Groton, CT is $497,162 as of Jul 14, 2026. The likely range is $456,133 to $538,191. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Terrace Ave, Groton, CT last sell?

20 Terrace Ave, Groton, CT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20 Terrace Ave, Groton, CT?

20 Terrace Ave, Groton, CT has 1 bedrooms, 1 bathrooms, 939 square feet of living space and a 0.48-acre lot.

When was 20 Terrace Ave, Groton, CT built?

20 Terrace Ave, Groton, CT was built in 1940, making it 86 years old. The building has 1 story.

What schools serve 20 Terrace Ave, Groton, CT?

20 Terrace Ave, Groton, CT is assigned to Mystic River Magnet School (elementary), rated C; Robert E. Fitch High School (high), rated C; Groton Middle School (middle), rated C. All sit in Groton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Terrace Ave, Groton, CT compare to other homes in Groton 06340?

Among the 7,236 homes in Groton 06340, it is worth more than 68% of them ($497,162 against a typical $390,763), its price per square foot is higher than 92% of them ($529 against a typical $286), it is bigger than 13% of them (939 ft² against a typical 1,411 ft²), its lot is bigger than 79% of them (0.48 ac against a typical 0.28 ac) and it is newer than 24% of them (1940 against a typical 1960). Measured against all of Southeastern Connecticut County, it is worth more than 68% 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 Terrace Ave, Groton, CT?

The 2025 property tax bill for 20 Terrace Ave, Groton, CT was $4,227. The county assessed it at $160,230.

Closest homes

More homes in Groton 06340

Assigned schools

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