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CondominiumResidential
$633,151$502 / 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 96How 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

81 SYDNEY ST

DORCHESTER, MA 02125
Building report
3
Beds
2
Baths
1,261 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.
1,261 ft²
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.
1
StoriesHow many floors the home has above ground.
5
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

$633K
$608K low$658K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,205 (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.$622,200 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$622,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$615,790

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.36 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.53%
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.2006
Lot (acres)The size of the land the home sits on, from county records.0.03
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(3)

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
Edward Everett Elementary SchoolD+
Elementary · Grades PK–5 · 0.4 mi
M
John W. Mccormack Middle School
Middle · Grades 6–8 · 0.5 mi
H
Boston Community Leadership AcademyF
High · Grades 9–12 · 0.5 mi

District: Boston School District

Neighborhood · ZIP 02125These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.24%
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.34,548
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12,979 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,287
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,595
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%

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

81 Sydney 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.

  • Costs less per square foot than 67% of homes in Suffolk County
  • Smaller than 77% of homes in Dorchester
  • Has a smaller lot than 85% of homes in Dorchester
  • Older than 73% of homes in Dorchester

What homes are worth in Dorchester 02125

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

This home
$334K$1.3M

This home is worth more than 53% of homes in Dorchester 02125.

How it measures up in Dorchester 02125

The dot is this home. The mark in the middle is the typical home in Dorchester 02125.

Estimated value$633,151
CheaperTypical $623,542Pricier

Pricier than 53% of homes nearby

Price per ft²$502
CheaperTypical $521Pricier

Pricier than 43% of homes nearby

Living area1,261 ft²
SmallerTypical 2,086 ft²Bigger

Bigger than 29% of homes nearby

Lot size1,261 ft²
SmallerTypical 2,919 ft²Bigger

Bigger than 23% of homes nearby

Year built1900
OlderTypical 1905Newer

Newer than 31% of homes nearby

How 81 Sydney St ranks against every home in each area.
MeasureThis homeDorchesterDorchester 02125Suffolk County
Estimated valuepricier than$633,15153% of homes53% of homes39% of homes
Price per ft²pricier than$50262% of homes43% of homes33% of homes
Living areabigger than1,261 ft²23% of homes29% of homes41% of homes
Lot sizebigger than1,261 ft²15% of homes23% of homes33% of homes
Year builtnewer than190027% of homes31% of homes31% of homes

About 81 Sydney St

How much is 81 Sydney St, Dorchester, MA worth?

The TopHap Estimate for 81 Sydney St, Dorchester, MA is $633,151 as of Oct 21, 2026. The likely range is $608,099 to $658,203. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 81 Sydney St, Dorchester, MA last sell?

81 Sydney St, Dorchester, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 81 Sydney St, Dorchester, MA?

81 Sydney St, Dorchester, MA has 3 bedrooms, 2 bathrooms, 1,261 square feet of living space and a 0.03-acre lot.

When was 81 Sydney St, Dorchester, MA built?

81 Sydney St, Dorchester, MA was built in 1900, making it 126 years old. The building has 1 story.

What schools serve 81 Sydney St, Dorchester, MA?

81 Sydney St, Dorchester, MA is assigned to Edward Everett Elementary School (elementary), rated D+; John W. Mccormack Middle School (middle); Boston Community Leadership Academy (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 81 Sydney St, Dorchester, MA compare to other homes in Dorchester 02125?

Among the 5,736 homes in Dorchester 02125, it is worth more than 53% of them ($633,151 against a typical $623,542), its price per square foot is higher than 43% of them ($502 against a typical $521), it is bigger than 29% of them (1,261 ft² against a typical 2,086 ft²), its lot is bigger than 23% of them (1,261 ft² against a typical 2,919 ft²) and it is newer than 31% of them (1900 against a typical 1905). Measured against all of Suffolk County, it is worth more than 39% 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 81 Sydney St, Dorchester, MA?

The 2025 property tax bill for 81 Sydney St, Dorchester, MA was $7,205. The county assessed it at $622,200.

More homes on Sydney St

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Assigned schools

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