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Single Family ResidenceResidential
$541,155$385 / 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 Aug 30, 2026
Last sold for $187,000 on Dec 29, 2000

11 KOSIOR DR

HADLEY, MA 01035
3
Beds
2
Baths
1,404 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.
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1984
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$541K
$499K low$583K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$187,000 · Dec 29, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,252 (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.$451,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$122,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$329,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$499,795

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.3 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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.Split Level
CountyHAMPSHIRE
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.1990
Lot (acres)The size of the land the home sits on, from county records.0.50
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

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.

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

M
Hopkins AcademyB+
Middle · Grades 7–12 · 0.4 mi
E
Hadley Elementary SchoolA
Elementary · Grades PK–6 · 1.1 mi

District: Hadley School District

Neighborhood · ZIP 01035These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.7%
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.5,530
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.227 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,113
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$140,035
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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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

11 Kosior Dr 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 73% of homes in Hampshire County
  • Costs more per square foot than 92% of homes in Hampshire County
  • Smaller than 71% of homes in Hadley 01035
  • Has a smaller lot than 76% of homes in Hadley 01035
  • Newer than 68% of homes in Hampshire County

What homes are worth in Hadley 01035

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

This home
$270K$971K

This home is worth more than 59% of homes in Hadley 01035.

How it measures up in Hadley 01035

The dot is this home. The mark in the middle is the typical home in Hadley 01035.

Estimated value$541,155
CheaperTypical $513,601Pricier

Pricier than 59% of homes nearby

Price per ft²$385
CheaperTypical $298Pricier

Pricier than 90% of homes nearby

Living area1,404 ft²
SmallerTypical 1,755 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.5 ac
SmallerTypical 0.73 acBigger

Bigger than 24% of homes nearby

Year built1984
OlderTypical 1970Newer

Newer than 66% of homes nearby

How 11 Kosior Dr ranks against every home in each area.
MeasureThis homeHadley 01035Hampshire County
Estimated valuepricier than$541,15559% of homes73% of homes
Price per ft²pricier than$38590% of homes92% of homes
Living areabigger than1,404 ft²29% of homes36% of homes
Lot sizebigger than0.5 ac24% of homes40% of homes
Year builtnewer than198466% of homes68% of homes

About 11 Kosior Dr

How much is 11 Kosior Dr, Hadley, MA worth?

The TopHap Estimate for 11 Kosior Dr, Hadley, MA is $541,155 as of Aug 30, 2026. The likely range is $499,390 to $582,920. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 11 Kosior Dr, Hadley, MA last sell?

11 Kosior Dr, Hadley, MA last sold on Dec 29, 2000 for $187,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 11 Kosior Dr, Hadley, MA?

11 Kosior Dr, Hadley, MA has 3 bedrooms, 2 bathrooms, 1,404 square feet of living space and a 0.50-acre lot.

When was 11 Kosior Dr, Hadley, MA built?

11 Kosior Dr, Hadley, MA was built in 1984, making it 42 years old. It is a split level home. The building has 2 stories.

What schools serve 11 Kosior Dr, Hadley, MA?

11 Kosior Dr, Hadley, MA is assigned to Hopkins Academy (middle), rated B+; Hadley Elementary School (elementary), rated A. All sit in Hadley School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11 Kosior Dr, Hadley, MA compare to other homes in Hadley 01035?

Among the 1,966 homes in Hadley 01035, it is worth more than 59% of them ($541,155 against a typical $513,601), its price per square foot is higher than 90% of them ($385 against a typical $298), it is bigger than 29% of them (1,404 ft² against a typical 1,755 ft²), its lot is bigger than 24% of them (0.5 ac against a typical 0.73 ac) and it is newer than 66% of them (1984 against a typical 1970). Measured against all of Hampshire County, it is worth more than 73% 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 11 Kosior Dr, Hadley, MA?

The 2025 property tax bill for 11 Kosior Dr, Hadley, MA was $5,252. The county assessed it at $451,600.

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