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Single Family ResidenceResidential
$317,962$269 / 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 96How 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
Last sold for $133,000 on Oct 4, 2001

21 GRAND ST

SEYMOUR, CT 06483
3
Beds
1
Baths
1,184 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1876
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$318K
$306K low$330K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$133,000 · Oct 4, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,064 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$176,820 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$32,760
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$144,060
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$176,820
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$312,439

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.40
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.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
98
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
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.Conventional
CountyNAUGATUCK VALLEY
Lot (acres)The size of the land the home sits on, from county records.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
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(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.

E
Chatfield-Lopresti SchoolB-
Elementary · Grades KG–5 · 0.9 mi
H
Seymour High SchoolC
High · Grades 9–12 · 1.6 mi
M
Seymour Middle SchoolB-
Middle · Grades 6–8 · 2.4 mi

District: Seymour School District

Neighborhood · ZIP 06483These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.96%
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.5.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.16,912
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,196 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$99,979
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,645
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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 Grand 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 81% of homes in Seymour 06483
  • Smaller than 73% of homes in Naugatuck Valley County
  • Has a smaller lot than 94% of homes in Seymour 06483
  • Older than 98% of homes in Naugatuck Valley County

What homes are worth in Seymour 06483

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

This home
$169K$752K

This home is worth more than 19% of homes in Seymour 06483.

How it measures up in Seymour 06483

The dot is this home. The mark in the middle is the typical home in Seymour 06483.

Estimated value$317,962
CheaperTypical $416,920Pricier

Pricier than 19% of homes nearby

Price per ft²$269
CheaperTypical $271Pricier

Pricier than 48% of homes nearby

Living area1,184 ft²
SmallerTypical 1,438 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.17 ac
SmallerTypical 0.45 acBigger

Bigger than 6% of homes nearby

Year built1876
OlderTypical 1968Newer

Newer than 4% of homes nearby

How 21 Grand St ranks against every home in each area.
MeasureThis homeSeymour 06483Naugatuck Valley County
Estimated valuepricier than$317,96219% of homes29% of homes
Price per ft²pricier than$26948% of homes55% of homes
Living areabigger than1,184 ft²29% of homes27% of homes
Lot sizebigger than0.17 ac6% of homes16% of homes
Year builtnewer than18764% of homes2% of homes

About 21 Grand St

How much is 21 Grand St, Seymour, CT worth?

The TopHap Estimate for 21 Grand St, Seymour, CT is $317,962 as of Sep 24, 2026. The likely range is $305,874 to $330,050. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Grand St, Seymour, CT last sell?

21 Grand St, Seymour, CT last sold on Oct 4, 2001 for $133,000, according to the county's recorded deed.

How big is 21 Grand St, Seymour, CT?

21 Grand St, Seymour, CT has 3 bedrooms, 1 bathrooms, 1,184 square feet of living space and a 0.17-acre lot.

When was 21 Grand St, Seymour, CT built?

21 Grand St, Seymour, CT was built in 1876, making it 150 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Grand St, Seymour, CT?

21 Grand St, Seymour, CT is assigned to Chatfield-Lopresti School (elementary), rated B-; Seymour High School (high), rated C; Seymour Middle School (middle), rated B-. All sit in Seymour School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Grand St, Seymour, CT compare to other homes in Seymour 06483?

Among the 5,651 homes in Seymour 06483, it is worth more than 19% of them ($317,962 against a typical $416,920), its price per square foot is higher than 48% of them ($269 against a typical $271), it is bigger than 29% of them (1,184 ft² against a typical 1,438 ft²), its lot is bigger than 6% of them (0.17 ac against a typical 0.45 ac) and it is newer than 4% of them (1876 against a typical 1968). Measured against all of Naugatuck Valley County, it is worth more than 29% 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 Grand St, Seymour, CT?

The 2026 property tax bill for 21 Grand St, Seymour, CT was $5,064. The county assessed it at $176,820.

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