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Single Family ResidenceResidential
$1,318,997$763 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $27,500 on Feb 25, 1983

21 FOREST ST

CHESTNUT HILL, MA 02467
3
Beds
2
Baths
1,728 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.3M
$1.2M low$1.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$27,500 · Feb 25, 1983

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,719 (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.$1,242,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$566,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$674,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,163,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,364,303

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.25 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
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.10
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.Electric
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Heath SchoolA+
Elementary · Grades PK–8 · 1.1 mi
H
Brookline High SchoolA+
High · Grades 9–12 · 1.5 mi

District: Brookline School District

Neighborhood · ZIP 02467These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.74

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
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.22,148
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,410 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$174,702
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$252,311
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

Owner Tools

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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 Forest 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 84% of homes in Norfolk County
  • Costs more per square foot than 87% of homes in Norfolk County
  • Smaller than 76% of homes in South Brookline
  • Has a smaller lot than 98% of homes in South Brookline
  • Newer than 89% of homes in South Brookline

What homes are worth in Chestnut Hill 02467

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

This home
$336K$7.2M

This home is worth more than 41% of homes in Chestnut Hill 02467.

How it measures up in Chestnut Hill 02467

The dot is this home. The mark in the middle is the typical home in Chestnut Hill 02467.

Estimated value$1,318,997
CheaperTypical $1,536,261Pricier

Pricier than 41% of homes nearby

Price per ft²$763
CheaperTypical $745Pricier

Pricier than 54% of homes nearby

Living area1,728 ft²
SmallerTypical 1,968 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.1 ac
SmallerTypical 0.28 acBigger

Bigger than 15% of homes nearby

Year built1985
OlderTypical 1955Newer

Newer than 84% of homes nearby

How 21 Forest St ranks against every home in each area.
MeasureThis homeSouth BrooklineChestnut Hill 02467Norfolk County
Estimated valuepricier than$1,318,99718% of homes41% of homes84% of homes
Price per ft²pricier than$76335% of homes54% of homes87% of homes
Living areabigger than1,728 ft²24% of homes41% of homes52% of homes
Lot sizebigger than0.1 ac2% of homes15% of homes5% of homes
Year builtnewer than198589% of homes84% of homes76% of homes

About 21 Forest St

How much is 21 Forest St, Chestnut Hill, MA worth?

The TopHap Estimate for 21 Forest St, Chestnut Hill, MA is $1,318,997 as of Oct 21, 2026. The likely range is $1,173,589 to $1,464,406. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Forest St, Chestnut Hill, MA last sell?

21 Forest St, Chestnut Hill, MA last sold on Feb 25, 1983 for $27,500, according to the county's recorded deed.

How big is 21 Forest St, Chestnut Hill, MA?

21 Forest St, Chestnut Hill, MA has 3 bedrooms, 2 bathrooms, 1,728 square feet of living space and a 0.10-acre lot.

When was 21 Forest St, Chestnut Hill, MA built?

21 Forest St, Chestnut Hill, MA was built in 1985, making it 41 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Forest St, Chestnut Hill, MA?

21 Forest St, Chestnut Hill, MA is assigned to Heath School (elementary), rated A+; Brookline High School (high), rated A+. All sit in Brookline School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Forest St, Chestnut Hill, MA compare to other homes in Chestnut Hill 02467?

Among the 5,309 homes in Chestnut Hill 02467, it is worth more than 41% of them ($1,318,997 against a typical $1,536,261), its price per square foot is higher than 54% of them ($763 against a typical $745), it is bigger than 41% of them (1,728 ft² against a typical 1,968 ft²), its lot is bigger than 15% of them (0.1 ac against a typical 0.28 ac) and it is newer than 84% of them (1985 against a typical 1955). Measured against all of Norfolk County, it is worth more than 84% 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 Forest St, Chestnut Hill, MA?

The 2026 property tax bill for 21 Forest St, Chestnut Hill, MA was $12,719. The county assessed it at $1,242,100.

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