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CondominiumResidential
$9,999,999$1,724 / 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 $17,265,000 on Dec 20, 2019

1 DALTON ST UNIT 5901

BOSTON, MA 02115
Building report
4
Beds
6 / 2
Baths
5,802 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.
2015
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$10M
$10M low$10M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$17,265,000 · Dec 20, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$197,123 (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.$17,022,700 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$17,022,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$16,861,300

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.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.72%
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
StyleThe architectural style of the home, such as ranch or colonial.High Rise
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.2023
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Carter Developmental Center
Middle · Grades 6–12 · 0.3 mi
E
Joseph J. Hurley K-8 SchoolC+
Elementary · Grades PK–8 · 0.5 mi

District: Boston School District

Neighborhood · ZIP 02115These 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.110
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 100.79

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.91%
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.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.32,960
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.43,192 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$59,808
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,096
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

1 Dalton St Unit 5901 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 Back Bay
  • Costs more per square foot than 97% of homes in Suffolk County
  • Among the largest homes in Suffolk County
  • Among the newest homes in Back Bay

What homes are worth in Boston 02115

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

This home
$336K$8.6M

This home is worth more than almost all homes in Boston 02115.

How it measures up in Boston 02115

The dot is this home. The mark in the middle is the typical home in Boston 02115.

Estimated value$9,999,999
CheaperTypical $838,095Pricier

Pricier than almost all homes nearby

Price per ft²$1724
CheaperTypical $1144Pricier

Pricier than 89% of homes nearby

Living area5,802 ft²
SmallerTypical 860 ft²Bigger

Bigger than 96% of homes nearby

Year built2015
OlderTypical 1900Newer

Newer than 96% of homes nearby

How 1 Dalton St Unit 5901 ranks against every home in each area.
MeasureThis homeBack BayBoston 02115Suffolk County
Estimated valuepricier than$9,999,999almost all homesalmost all homesalmost all homes
Price per ft²pricier than$172482% of homes89% of homes97% of homes
Living areabigger than5,802 ft²96% of homes96% of homesalmost all homes
Year builtnewer than2015almost all homes96% of homes94% of homes

About 1 Dalton St Unit 5901

How much is 1 Dalton St Unit 5901, Boston, MA worth?

The TopHap Estimate for 1 Dalton St Unit 5901, Boston, MA is $9,999,999 as of Oct 21, 2026. The likely range is $9,999,999 to $9,999,999. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1 Dalton St Unit 5901, Boston, MA last sell?

1 Dalton St Unit 5901, Boston, MA last sold on Dec 20, 2019 for $17,265,000, according to the county's recorded deed.

How big is 1 Dalton St Unit 5901, Boston, MA?

1 Dalton St Unit 5901, Boston, MA has 4 bedrooms, 6 bathrooms and 5,802 square feet of living space.

When was 1 Dalton St Unit 5901, Boston, MA built?

1 Dalton St Unit 5901, Boston, MA was built in 2015, making it 11 years old. It is a high rise home. The building has 1 story.

What schools serve 1 Dalton St Unit 5901, Boston, MA?

1 Dalton St Unit 5901, Boston, MA is assigned to Carter Developmental Center (middle); Joseph J. Hurley K-8 School (elementary), rated C+. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1 Dalton St Unit 5901, Boston, MA compare to other homes in Boston 02115?

Among the 3,497 homes in Boston 02115, it is worth more than almost all of them ($9,999,999 against a typical $838,095), its price per square foot is higher than 89% of them ($1724 against a typical $1144), it is bigger than 96% of them (5,802 ft² against a typical 860 ft²) and it is newer than 96% of them (2015 against a typical 1900). Measured against all of Suffolk 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 1 Dalton St Unit 5901, Boston, MA?

The 2025 property tax bill for 1 Dalton St Unit 5901, Boston, MA was $197,123. The county assessed it at $17,022,700.

More homes on Dalton St Unit 5901

Closest homes

More homes in Boston 02115

Assigned schools

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