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Single Family ResidenceResidential
$219,207$224 / 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 95How 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 $100,000 on Apr 1, 2021

21 IRWIN ST

LANESBOROUGH, MA 01237
2
Beds
1
Baths
980 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.
1920
Year BuiltThe year the home was originally built, according to county records.
1
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

$219K
$209K low$230K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$100,000 · Apr 1, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,946 (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.$176,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$57,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$119,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$176,100

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.7 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.Bungalow
CountyBerkshire
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.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(4)

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
Lanesborough Elementary SchoolA
Elementary · Grades PK–6 · 1.4 mi
M
Mount Greylock Regional High SchoolB+
Middle · Grades 7–12 · 12.2 mi

District: Mount Greylock School District

Neighborhood · ZIP 01237These 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.64
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.49

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.1,914
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.61 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,098
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,719
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

21 Irwin 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 89% of homes in Berkshire County
  • Costs less per square foot than 69% of homes in Lanesborough 01237
  • Smaller than 90% of homes in Berkshire County
  • Has a smaller lot than 95% of homes in Lanesborough 01237
  • Older than 86% of homes in Lanesborough 01237

What homes are worth in Lanesborough 01237

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

This home
$141K$1.1M

This home is worth more than 12% of homes in Lanesborough 01237.

How it measures up in Lanesborough 01237

The dot is this home. The mark in the middle is the typical home in Lanesborough 01237.

Estimated value$219,207
CheaperTypical $389,414Pricier

Pricier than 12% of homes nearby

Price per ft²$224
CheaperTypical $260Pricier

Pricier than 31% of homes nearby

Living area980 ft²
SmallerTypical 1,604 ft²Bigger

Bigger than 19% of homes nearby

Lot size0.17 ac
SmallerTypical 1.01 acBigger

Bigger than 5% of homes nearby

Year built1920
OlderTypical 1974Newer

Newer than 14% of homes nearby

How 21 Irwin St ranks against every home in each area.
MeasureThis homeLanesborough 01237Berkshire County
Estimated valuepricier than$219,20712% of homes11% of homes
Price per ft²pricier than$22431% of homes39% of homes
Living areabigger than980 ft²19% of homes10% of homes
Lot sizebigger than0.17 ac5% of homes12% of homes
Year builtnewer than192014% of homes29% of homes

About 21 Irwin St

How much is 21 Irwin St, Lanesborough, MA worth?

The TopHap Estimate for 21 Irwin St, Lanesborough, MA is $219,207 as of Aug 30, 2026. The likely range is $208,602 to $229,812. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Irwin St, Lanesborough, MA last sell?

21 Irwin St, Lanesborough, MA last sold on Apr 1, 2021 for $100,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Irwin St, Lanesborough, MA?

21 Irwin St, Lanesborough, MA has 2 bedrooms, 1 bathrooms, 980 square feet of living space and a 0.17-acre lot.

When was 21 Irwin St, Lanesborough, MA built?

21 Irwin St, Lanesborough, MA was built in 1920, making it 106 years old. It is a bungalow home. The building has 1 story.

What schools serve 21 Irwin St, Lanesborough, MA?

21 Irwin St, Lanesborough, MA is assigned to Lanesborough Elementary School (elementary), rated A; Mount Greylock Regional High School (middle), rated B+. All sit in Mount Greylock School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Irwin St, Lanesborough, MA compare to other homes in Lanesborough 01237?

Among the 1,844 homes in Lanesborough 01237, it is worth more than 12% of them ($219,207 against a typical $389,414), its price per square foot is higher than 31% of them ($224 against a typical $260), it is bigger than 19% of them (980 ft² against a typical 1,604 ft²), its lot is bigger than 5% of them (0.17 ac against a typical 1.01 ac) and it is newer than 14% of them (1920 against a typical 1974). Measured against all of Berkshire County, it is worth more than 11% 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 Irwin St, Lanesborough, MA?

The 2025 property tax bill for 21 Irwin St, Lanesborough, MA was $2,946. The county assessed it at $176,100.

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