Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$810,321$394 / 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 78How 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
Last sold for $750,000 on Dec 16, 2024

13 PROSPECT ST

GROTON, CT 06340
5
Beds
1.5
Baths
2,057 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.
0.69 ac
Lot SizeThe size of the land the home sits on, from county records.
1891
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$810K
$630K low$991K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$750,000 · Dec 16, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,206 (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.$448,420 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$289,562
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$158,858
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$448,420
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$313,894

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.31
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
12
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
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountySOUTHEASTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.69
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Steam
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(2)

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.

E
Mystic River Magnet SchoolC
Elementary · Grades PK–5 · 0.7 mi
H
Robert E. Fitch High SchoolC
High · Grades 9–12 · 1.9 mi
M
Groton Middle SchoolC
Middle · Grades 6–8 · 2.0 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%

Owner Tools

Do you own this home?
Claim this home

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

13 Prospect 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 93% of homes in Southeastern Connecticut County
  • Costs more per square foot than 90% of homes in Southeastern Connecticut County
  • Bigger than 80% of homes in Groton 06340
  • Has a bigger lot than 88% of homes in Groton 06340
  • Older than 95% of homes in Groton 06340

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
$197K$1.8M

This home is worth more than 85% 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$810,321
CheaperTypical $389,179Pricier

Pricier than 85% of homes nearby

Price per ft²$394
CheaperTypical $286Pricier

Pricier than 83% of homes nearby

Living area2,057 ft²
SmallerTypical 1,425 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.69 ac
SmallerTypical 0.28 acBigger

Bigger than 88% of homes nearby

Year built1891
OlderTypical 1961Newer

Newer than 5% of homes nearby

How 13 Prospect St ranks against every home in each area.
MeasureThis homeGroton 06340Southeastern Connecticut County
Estimated valuepricier than$810,32185% of homes93% of homes
Price per ft²pricier than$39483% of homes90% of homes
Living areabigger than2,057 ft²80% of homes74% of homes
Lot sizebigger than0.69 ac88% of homes57% of homes
Year builtnewer than18915% of homes7% of homes

About 13 Prospect St

How much is 13 Prospect St, Groton, CT worth?

The TopHap Estimate for 13 Prospect St, Groton, CT is $810,321 as of Jul 14, 2026. The likely range is $629,840 to $990,802. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 13 Prospect St, Groton, CT last sell?

13 Prospect St, Groton, CT last sold on Dec 16, 2024 for $750,000, according to the county's recorded deed.

How big is 13 Prospect St, Groton, CT?

13 Prospect St, Groton, CT has 5 bedrooms, 1.5 bathrooms, 2,057 square feet of living space and a 0.69-acre lot.

When was 13 Prospect St, Groton, CT built?

13 Prospect St, Groton, CT was built in 1891, making it 135 years old. It is a colonial home. The building has 2 stories.

What schools serve 13 Prospect St, Groton, CT?

13 Prospect St, 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 13 Prospect St, Groton, CT compare to other homes in Groton 06340?

Among the 7,236 homes in Groton 06340, it is worth more than 85% of them ($810,321 against a typical $389,179), its price per square foot is higher than 83% of them ($394 against a typical $286), it is bigger than 80% of them (2,057 ft² against a typical 1,425 ft²), its lot is bigger than 88% of them (0.69 ac against a typical 0.28 ac) and it is newer than 5% of them (1891 against a typical 1961). Measured against all of Southeastern Connecticut County, it is worth more than 93% 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 13 Prospect St, Groton, CT?

The 2025 property tax bill for 13 Prospect St, Groton, CT was $12,206. The county assessed it at $448,420.

More homes on Prospect St

Closest homes

More homes in Groton 06340

Assigned schools

Explore the area

See this home in context

Open 13 Prospect St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map