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CondominiumResidential
$995,031$534 / 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 91How 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 $660,000 on Nov 12, 2021

70 BOYLSTON ST

WATERTOWN, MA 02472
4
Beds
2.5
Baths
1,865 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$995K
$901K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$660,000 · Nov 12, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,992 (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.$855,500 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$855,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$828,780

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
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.2015
Lot (acres)The size of the land the home sits on, from county records.0.12
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.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(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
Hosmer Elementary SchoolB+
Elementary · Grades PK–5 · 0.1 mi
M
Watertown Middle SchoolB-
Middle · Grades 6–8 · 1.2 mi
H
Watertown High SchoolB-
High · Grades 9–12 · 1.2 mi

District: Watertown School District

Neighborhood · ZIP 02472These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.71

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.6%
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.35,928
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,689 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,227
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$149,103
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.58%

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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 Boylston 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 73% of homes in Watertown 02472
  • Costs less per square foot than 71% of homes in Watertown 02472
  • Has a smaller lot than 82% of homes in Middlesex County
  • Older than 86% of homes in Watertown 02472

What homes are worth in Watertown 02472

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

This home
$374K$1.8M

This home is worth more than 73% of homes in Watertown 02472.

How it measures up in Watertown 02472

The dot is this home. The mark in the middle is the typical home in Watertown 02472.

Estimated value$995,031
CheaperTypical $831,221Pricier

Pricier than 73% of homes nearby

Price per ft²$534
CheaperTypical $592Pricier

Pricier than 29% of homes nearby

Living area1,865 ft²
SmallerTypical 1,727 ft²Bigger

Bigger than 55% of homes nearby

Lot size0.12 ac
SmallerTypical 0.14 acBigger

Bigger than 37% of homes nearby

Year built1900
OlderTypical 1930Newer

Newer than 14% of homes nearby

How 70 Boylston St ranks against every home in each area.
MeasureThis homeEast WatertownWatertown 02472Middlesex County
Estimated valuepricier than$995,03164% of homes73% of homes70% of homes
Price per ft²pricier than$53430% of homes29% of homes66% of homes
Living areabigger than1,865 ft²44% of homes55% of homes51% of homes
Lot sizebigger than0.12 ac40% of homes37% of homes18% of homes
Year builtnewer than190017% of homes14% of homes15% of homes

About 70 Boylston St

How much is 70 Boylston St, Watertown, MA worth?

The TopHap Estimate for 70 Boylston St, Watertown, MA is $995,031 as of Sep 24, 2026. The likely range is $901,308 to $1,088,754. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 70 Boylston St, Watertown, MA last sell?

70 Boylston St, Watertown, MA last sold on Nov 12, 2021 for $660,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 70 Boylston St, Watertown, MA?

70 Boylston St, Watertown, MA has 4 bedrooms, 2.5 bathrooms, 1,865 square feet of living space and a 0.12-acre lot.

When was 70 Boylston St, Watertown, MA built?

70 Boylston St, Watertown, MA was built in 1900, making it 126 years old. It is a condo/apartment home. The building has 3 stories.

What schools serve 70 Boylston St, Watertown, MA?

70 Boylston St, Watertown, MA is assigned to Hosmer Elementary School (elementary), rated B+; Watertown Middle School (middle), rated B-; Watertown High School (high), rated B-. All sit in Watertown School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 70 Boylston St, Watertown, MA compare to other homes in Watertown 02472?

Among the 10,041 homes in Watertown 02472, it is worth more than 73% of them ($995,031 against a typical $831,221), its price per square foot is higher than 29% of them ($534 against a typical $592), it is bigger than 55% of them (1,865 ft² against a typical 1,727 ft²), its lot is bigger than 37% of them (0.12 ac against a typical 0.14 ac) and it is newer than 14% of them (1900 against a typical 1930). Measured against all of Middlesex County, it is worth more than 70% 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 70 Boylston St, Watertown, MA?

The 2025 property tax bill for 70 Boylston St, Watertown, MA was $9,992. The county assessed it at $855,500.

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