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CondominiumResidential
$750,713$1,157 / 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 98How 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 $560,000 on May 23, 2019

631 TREMONT ST

BOSTON, MA 02118
Building report
1
Beds
1
Baths
649 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.
649 ft²
Lot SizeThe size of the land the home sits on, from county records.
1899
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$751K
$732K low$769K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$560,000 · May 23, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,656 (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.$661,100 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$661,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$748,125

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.72 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.80%
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.Condominium
CountySUFFOLK
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.2012
Lot (acres)The size of the land the home sits on, from county records.0.01
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
William Mckinley SchoolF
Elementary · Grades KG–12 · 0.1 mi

District: Boston School District

Neighborhood · ZIP 02118These 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.140
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 100.80

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.92%
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.22%
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.29,733
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.26,785 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,217
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$146,291
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

631 Tremont 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 79% of homes in South End
  • Costs more per square foot than 86% of homes in Suffolk County
  • Smaller than 91% of homes in Suffolk County
  • Has a smaller lot than 91% of homes in Suffolk County
  • Older than 82% of homes in Suffolk County

What homes are worth in Boston 02118

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

This home
$408K$4.3M

This home is worth more than 24% of homes in Boston 02118.

How it measures up in Boston 02118

The dot is this home. The mark in the middle is the typical home in Boston 02118.

Estimated value$750,713
CheaperTypical $997,087Pricier

Pricier than 24% of homes nearby

Price per ft²$1157
CheaperTypical $1113Pricier

Pricier than 57% of homes nearby

Living area649 ft²
SmallerTypical 1,024 ft²Bigger

Bigger than 12% of homes nearby

Lot size649 ft²
SmallerTypical 1,045 ft²Bigger

Bigger than 11% of homes nearby

Year built1899
OlderTypical 1900Newer

Newer than 40% of homes nearby

How 631 Tremont St ranks against every home in each area.
MeasureThis homeSouth EndBoston 02118Suffolk County
Estimated valuepricier than$750,71321% of homes24% of homes56% of homes
Price per ft²pricier than$115747% of homes57% of homes86% of homes
Living areabigger than649 ft²15% of homes12% of homes9% of homes
Lot sizebigger than649 ft²12% of homes11% of homes9% of homes
Year builtnewer than189946% of homes40% of homes18% of homes

About 631 Tremont St

How much is 631 Tremont St, Boston, MA worth?

The TopHap Estimate for 631 Tremont St, Boston, MA is $750,713 as of Oct 21, 2026. The likely range is $732,197 to $769,229. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 631 Tremont St, Boston, MA last sell?

631 Tremont St, Boston, MA last sold on May 23, 2019 for $560,000, according to the county's recorded deed.

How big is 631 Tremont St, Boston, MA?

631 Tremont St, Boston, MA has 1 bedrooms, 1 bathrooms, 649 square feet of living space and a 0.01-acre lot.

When was 631 Tremont St, Boston, MA built?

631 Tremont St, Boston, MA was built in 1899, making it 127 years old. The building has 1 story.

What schools serve 631 Tremont St, Boston, MA?

631 Tremont St, Boston, MA is assigned to William Mckinley School (elementary), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 631 Tremont St, Boston, MA compare to other homes in Boston 02118?

Among the 6,232 homes in Boston 02118, it is worth more than 24% of them ($750,713 against a typical $997,087), its price per square foot is higher than 57% of them ($1157 against a typical $1113), it is bigger than 12% of them (649 ft² against a typical 1,024 ft²), its lot is bigger than 11% of them (649 ft² against a typical 1,045 ft²) and it is newer than 40% of them (1899 against a typical 1900). Measured against all of Suffolk County, it is worth more than 56% 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 631 Tremont St, Boston, MA?

The 2025 property tax bill for 631 Tremont St, Boston, MA was $7,656. The county assessed it at $661,100.

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