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Single Family ResidenceResidential
$550,727$179 / 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 Sep 24, 2026
Last sold for $435,000 on Sep 16, 2024

645 MAIN ST

MIDDLEFIELD, CT 06455
4
Beds
2.5
Baths
3,084 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.
1.56 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
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

$551K
$518K low$584K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$435,000 · Sep 16, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,369 (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.$314,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$102,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$211,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$315,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$220,080

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.49
39
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
55
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyLOWER CONNECTICUT RIVER VALLEY
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1985
Lot (acres)The size of the land the home sits on, from county records.1.56
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
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(14)

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
John Lyman Elementary SchoolC
Elementary · Grades KG–4 · 1.2 mi
M
Frank Ward Strong Middle SchoolB
Middle · Grades 7–8 · 2.7 mi
H
Coginchaug Regional High SchoolC+
High · Grades 9–12 · 3.0 mi

District: Regional School District 13

Neighborhood · ZIP 06455These 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.48
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.115
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.67

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.3,160
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.292 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,307
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,494
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.56%

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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

645 Main 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 79% of homes in Middlefield 06455
  • Costs less per square foot than 97% of homes in Lower Connecticut River Valley County
  • Bigger than 93% of homes in Middlefield 06455
  • Has a bigger lot than 74% of homes in Middlefield 06455
  • Older than 78% of homes in Lower Connecticut River Valley County

What homes are worth in Middlefield 06455

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

This home
$225K$832K

This home is worth more than 79% of homes in Middlefield 06455.

How it measures up in Middlefield 06455

The dot is this home. The mark in the middle is the typical home in Middlefield 06455.

Estimated value$550,727
CheaperTypical $401,177Pricier

Pricier than 79% of homes nearby

Price per ft²$179
CheaperTypical $255Pricier

Pricier than 6% of homes nearby

Living area3,084 ft²
SmallerTypical 1,635 ft²Bigger

Bigger than 93% of homes nearby

Lot size1.56 ac
SmallerTypical 0.69 acBigger

Bigger than 74% of homes nearby

Year built1949
OlderTypical 1960Newer

Newer than 28% of homes nearby

How 645 Main St ranks against every home in each area.
MeasureThis homeMiddlefield 06455Lower Connecticut River Valley County
Estimated valuepricier than$550,72779% of homes60% of homes
Price per ft²pricier than$1796% of homes3% of homes
Living areabigger than3,084 ft²93% of homes93% of homes
Lot sizebigger than1.56 ac74% of homes73% of homes
Year builtnewer than194928% of homes22% of homes

About 645 Main St

How much is 645 Main St, Middlefield, CT worth?

The TopHap Estimate for 645 Main St, Middlefield, CT is $550,727 as of Sep 24, 2026. The likely range is $517,906 to $583,548. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 645 Main St, Middlefield, CT last sell?

645 Main St, Middlefield, CT last sold on Sep 16, 2024 for $435,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 645 Main St, Middlefield, CT?

645 Main St, Middlefield, CT has 4 bedrooms, 2.5 bathrooms, 3,084 square feet of living space and a 1.56-acre lot.

When was 645 Main St, Middlefield, CT built?

645 Main St, Middlefield, CT was built in 1949, making it 77 years old. The building has 2 stories.

What schools serve 645 Main St, Middlefield, CT?

645 Main St, Middlefield, CT is assigned to John Lyman Elementary School (elementary), rated C; Frank Ward Strong Middle School (middle), rated B; Coginchaug Regional High School (high), rated C+. All sit in Regional School District 13. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 645 Main St, Middlefield, CT compare to other homes in Middlefield 06455?

Among the 1,300 homes in Middlefield 06455, it is worth more than 79% of them ($550,727 against a typical $401,177), its price per square foot is higher than 6% of them ($179 against a typical $255), it is bigger than 93% of them (3,084 ft² against a typical 1,635 ft²), its lot is bigger than 74% of them (1.56 ac against a typical 0.69 ac) and it is newer than 28% of them (1949 against a typical 1960). Measured against all of Lower Connecticut River Valley County, it is worth more than 60% 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 645 Main St, Middlefield, CT?

The 2025 property tax bill for 645 Main St, Middlefield, CT was $9,369. The county assessed it at $314,400.

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