Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,007,411$449 / 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 94How 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
Last sold for $10,000 on Feb 22, 2016

1 SPRING ST

GROTON, CT 06340
4
Beds
2
Baths
2,242 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1864
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.

Valuation

$1M
$946K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$10,000 · Feb 22, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,562 (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.$476,210 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$309,904
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$166,306
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$476,210
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$333,347

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.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
47
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
78
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.0.26
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Hot Water
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.

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

M
Groton Middle SchoolC
Middle · Grades 6–8 · 1.1 mi
H
Robert E. Fitch High SchoolC
High · Grades 9–12 · 1.4 mi
E
Northeast Academy Arts Magnet SchoolB
Elementary · Grades PK–5 · 2.5 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

1 Spring 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 96% of homes in Southeastern Connecticut County
  • Costs more per square foot than 94% of homes in Southeastern Connecticut County
  • Bigger than 85% of homes in Groton 06340
  • Has a smaller lot than 76% of homes in Southeastern Connecticut County
  • Older than 97% 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
$191K$2.1M

This home is worth more than 87% 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$1,007,411
CheaperTypical $384,052Pricier

Pricier than 87% of homes nearby

Price per ft²$449
CheaperTypical $281Pricier

Pricier than 84% of homes nearby

Living area2,242 ft²
SmallerTypical 1,425 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.26 ac
SmallerTypical 0.28 acBigger

Bigger than 43% of homes nearby

Year built1864
OlderTypical 1960Newer

Newer than 3% of homes nearby

How 1 Spring St ranks against every home in each area.
MeasureThis homeGroton 06340Southeastern Connecticut County
Estimated valuepricier than$1,007,41187% of homes96% of homes
Price per ft²pricier than$44984% of homes94% of homes
Living areabigger than2,242 ft²85% of homes80% of homes
Lot sizebigger than0.26 ac43% of homes24% of homes
Year builtnewer than18643% of homes3% of homes

About 1 Spring St

How much is 1 Spring St, Groton, CT worth?

The TopHap Estimate for 1 Spring St, Groton, CT is $1,007,411 as of Aug 30, 2026. The likely range is $945,708 to $1,069,114. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1 Spring St, Groton, CT last sell?

1 Spring St, Groton, CT last sold on Feb 22, 2016 for $10,000, according to the county's recorded deed.

How big is 1 Spring St, Groton, CT?

1 Spring St, Groton, CT has 4 bedrooms, 2 bathrooms, 2,242 square feet of living space and a 0.26-acre lot.

When was 1 Spring St, Groton, CT built?

1 Spring St, Groton, CT was built in 1864, making it 162 years old. The building has 3 stories.

What schools serve 1 Spring St, Groton, CT?

1 Spring St, Groton, CT is assigned to Groton Middle School (middle), rated C; Robert E. Fitch High School (high), rated C; Northeast Academy Arts Magnet School (elementary), rated B. All sit in Groton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1 Spring St, Groton, CT compare to other homes in Groton 06340?

Among the 7,236 homes in Groton 06340, it is worth more than 87% of them ($1,007,411 against a typical $384,052), its price per square foot is higher than 84% of them ($449 against a typical $281), it is bigger than 85% of them (2,242 ft² against a typical 1,425 ft²), its lot is bigger than 43% of them (0.26 ac against a typical 0.28 ac) and it is newer than 3% of them (1864 against a typical 1960). Measured against all of Southeastern Connecticut County, it is worth more than 96% 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 1 Spring St, Groton, CT?

The 2025 property tax bill for 1 Spring St, Groton, CT was $12,562. The county assessed it at $476,210.

More homes on Spring St

Closest homes

More homes in Groton 06340

Assigned schools

Explore the area

See this home in context

Open 1 Spring 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