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Single Family ResidenceResidential
$1,135,522$739 / 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 Sep 24, 2026
Last sold for $410,000 on Sep 13, 2011

86 OLD HARBOR ST

SOUTH BOSTON, MA 02127
3
Beds
2
Baths
1,536 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.
2,565 ft²
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
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

$1.1M
$1.1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$410,000 · Sep 13, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,300 (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.$1,062,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$437,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$624,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$933,185

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.Colonial
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.2017
Lot (acres)The size of the land the home sits on, from county records.0.06
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
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(9)

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.

H
Excel High SchoolD-
High · Grades 9–12 · 0.1 mi
E
Michael J. Perkins Elementary SchoolD-
Elementary · Grades KG–5 · 0.2 mi
M
James Condon K-8 SchoolF
Middle · Grades PK–8 · 0.5 mi

District: Boston School District

Neighborhood · ZIP 02127These 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.102
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.44%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.37,644
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.15,131 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$146,200
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$170,961
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

86 Old Harbor 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 82% of homes in Suffolk County
  • Costs less per square foot than 70% of homes in South Boston 02127
  • Bigger than 67% of homes in South Boston 02127
  • Has a bigger lot than 84% of homes in South Boston 02127

What homes are worth in South Boston 02127

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

This home
$427K$1.8M

This home is worth more than 81% of homes in South Boston 02127.

How it measures up in South Boston 02127

The dot is this home. The mark in the middle is the typical home in South Boston 02127.

Estimated value$1,135,522
CheaperTypical $836,633Pricier

Pricier than 81% of homes nearby

Price per ft²$739
CheaperTypical $807Pricier

Pricier than 30% of homes nearby

Living area1,536 ft²
SmallerTypical 1,199 ft²Bigger

Bigger than 67% of homes nearby

Lot size2,565 ft²
SmallerTypical 1,220 ft²Bigger

Bigger than 84% of homes nearby

Year built1910
OlderTypical 1905Newer

Newer than 60% of homes nearby

How 86 Old Harbor St ranks against every home in each area.
MeasureThis homeSouth Boston 02127Suffolk County
Estimated valuepricier than$1,135,52281% of homes82% of homes
Price per ft²pricier than$73930% of homes62% of homes
Living areabigger than1,536 ft²67% of homes53% of homes
Lot sizebigger than2,565 ft²84% of homes50% of homes
Year builtnewer than191060% of homes45% of homes

About 86 Old Harbor St

How much is 86 Old Harbor St, South Boston, MA worth?

The TopHap Estimate for 86 Old Harbor St, South Boston, MA is $1,135,522 as of Sep 24, 2026. The likely range is $1,066,951 to $1,204,093. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 86 Old Harbor St, South Boston, MA last sell?

86 Old Harbor St, South Boston, MA last sold on Sep 13, 2011 for $410,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 86 Old Harbor St, South Boston, MA?

86 Old Harbor St, South Boston, MA has 3 bedrooms, 2 bathrooms, 1,536 square feet of living space and a 0.06-acre lot.

When was 86 Old Harbor St, South Boston, MA built?

86 Old Harbor St, South Boston, MA was built in 1910, making it 116 years old. It is a colonial home. The building has 2 stories.

What schools serve 86 Old Harbor St, South Boston, MA?

86 Old Harbor St, South Boston, MA is assigned to Excel High School (high), rated D-; Michael J. Perkins Elementary School (elementary), rated D-; James Condon K-8 School (middle), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 86 Old Harbor St, South Boston, MA compare to other homes in South Boston 02127?

Among the 11,103 homes in South Boston 02127, it is worth more than 81% of them ($1,135,522 against a typical $836,633), its price per square foot is higher than 30% of them ($739 against a typical $807), it is bigger than 67% of them (1,536 ft² against a typical 1,199 ft²), its lot is bigger than 84% of them (2,565 ft² against a typical 1,220 ft²) and it is newer than 60% of them (1910 against a typical 1905). Measured against all of Suffolk County, it is worth more than 82% 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 86 Old Harbor St, South Boston, MA?

The 2025 property tax bill for 86 Old Harbor St, South Boston, MA was $12,300. The county assessed it at $1,062,200.

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