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Single Family ResidenceResidential
$4,264,012$863 / 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 Aug 30, 2026
Last sold for $3,050,019 on Jan 17, 2025

70 MASON TER

BROOKLINE, MA 02446
6
Beds
7.5
Baths
4,942 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
12
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$4.3M
$4M low$4.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$3,050,019 · Jan 17, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$31,174 (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.$3,158,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,618,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,540,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,893,320

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
92
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
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.Contemporary
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.43
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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(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.

E
Michael Driscoll SchoolA
Elementary · Grades PK–8 · 0.3 mi
H
Brookline High SchoolA-
High · Grades 9–12 · 0.6 mi

District: Brookline School District

Neighborhood · ZIP 02446These 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.144
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
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.31,401
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.23,893 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,895
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,699
Average tempThe average temperature here across a full year.50°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.52%

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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

70 Mason Ter 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.

  • Among the most valuable homes in Washington Square
  • Costs more per square foot than 91% of homes in Norfolk County
  • Bigger than 98% of homes in Norfolk County
  • Has a bigger lot than 66% of homes in Washington Square
  • Newer than 92% of homes in Washington Square

What homes are worth in Brookline 02446

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

This home
$429K$5M

This home is worth more than 97% of homes in Brookline 02446.

How it measures up in Brookline 02446

The dot is this home. The mark in the middle is the typical home in Brookline 02446.

Estimated value$4,264,012
CheaperTypical $1,034,761Pricier

Pricier than 97% of homes nearby

Price per ft²$863
CheaperTypical $882Pricier

Pricier than 45% of homes nearby

Living area4,942 ft²
SmallerTypical 1,250 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.43 ac
SmallerTypical 0.29 acBigger

Bigger than 59% of homes nearby

Year built1973
OlderTypical 1925Newer

Newer than 85% of homes nearby

How 70 Mason Ter ranks against every home in each area.
MeasureThis homeWashington SquareBrookline 02446Norfolk County
Estimated valuepricier than$4,264,012almost all homes97% of homesalmost all homes
Price per ft²pricier than$86358% of homes45% of homes91% of homes
Living areabigger than4,942 ft²96% of homes95% of homes98% of homes
Lot sizebigger than0.43 ac66% of homes59% of homes57% of homes
Year builtnewer than197392% of homes85% of homes66% of homes

About 70 Mason Ter

How much is 70 Mason Ter, Brookline, MA worth?

The TopHap Estimate for 70 Mason Ter, Brookline, MA is $4,264,012 as of Aug 30, 2026. The likely range is $4,008,607 to $4,519,417. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 70 Mason Ter, Brookline, MA last sell?

70 Mason Ter, Brookline, MA last sold on Jan 17, 2025 for $3,050,019, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 70 Mason Ter, Brookline, MA?

70 Mason Ter, Brookline, MA has 6 bedrooms, 7.5 bathrooms, 4,942 square feet of living space and a 0.43-acre lot.

When was 70 Mason Ter, Brookline, MA built?

70 Mason Ter, Brookline, MA was built in 1973, making it 53 years old. It is a contemporary home. The building has 2 stories.

What schools serve 70 Mason Ter, Brookline, MA?

70 Mason Ter, Brookline, MA is assigned to Michael Driscoll 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 70 Mason Ter, Brookline, MA compare to other homes in Brookline 02446?

Among the 7,868 homes in Brookline 02446, it is worth more than 97% of them ($4,264,012 against a typical $1,034,761), its price per square foot is higher than 45% of them ($863 against a typical $882), it is bigger than 95% of them (4,942 ft² against a typical 1,250 ft²), its lot is bigger than 59% of them (0.43 ac against a typical 0.29 ac) and it is newer than 85% of them (1973 against a typical 1925). Measured against all of Norfolk County, it is worth more than almost all 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 70 Mason Ter, Brookline, MA?

The 2025 property tax bill for 70 Mason Ter, Brookline, MA was $31,174. The county assessed it at $3,158,500.

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