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Single Family ResidenceResidential
$1,011,173$499 / 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 Aug 30, 2026

21 ASHFORD ST

ALLSTON, MA 02134
3
Beds
2.5
Baths
2,025 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.
3,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
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

$1M
$951K low$1.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,915 (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.$769,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$289,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$480,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,052,505

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.07
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
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
Jackson Mann K-8 School
Elementary · Grades PK–8 · 0.5 mi
H
Boston Green AcademyD-
High · Grades 6–12 · 0.9 mi

District: Boston School District

Neighborhood · ZIP 02134These 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.115
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.73

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.43%
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.1.3%
PopulationHow many people live in this area.23,966
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17,004 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,041
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,297
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

21 Ashford 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 92% of homes in Allston 02134
  • Costs less per square foot than 88% of homes in Allston 02134
  • Bigger than 67% of homes in Suffolk County
  • Has a bigger lot than 65% of homes in Allston 02134
  • Older than 98% of homes in Allston 02134

What homes are worth in Allston 02134

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

This home
$288K$1.2M

This home is worth more than 92% of homes in Allston 02134.

How it measures up in Allston 02134

The dot is this home. The mark in the middle is the typical home in Allston 02134.

Estimated value$1,011,173
CheaperTypical $546,963Pricier

Pricier than 92% of homes nearby

Price per ft²$499
CheaperTypical $633Pricier

Pricier than 12% of homes nearby

Living area2,025 ft²
SmallerTypical 1,190 ft²Bigger

Bigger than 66% of homes nearby

Lot size3,000 ft²
SmallerTypical 1,263 ft²Bigger

Bigger than 65% of homes nearby

Year built1880
OlderTypical 1920Newer

Newer than 2% of homes nearby

How 21 Ashford St ranks against every home in each area.
MeasureThis homeAllston 02134Suffolk County
Estimated valuepricier than$1,011,17392% of homes78% of homes
Price per ft²pricier than$49912% of homes33% of homes
Living areabigger than2,025 ft²66% of homes67% of homes
Lot sizebigger than3,000 ft²65% of homes53% of homes
Year builtnewer than18802% of homes6% of homes

About 21 Ashford St

How much is 21 Ashford St, Allston, MA worth?

The TopHap Estimate for 21 Ashford St, Allston, MA is $1,011,173 as of Aug 30, 2026. The likely range is $950,503 to $1,071,843. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Ashford St, Allston, MA last sell?

21 Ashford St, Allston, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Ashford St, Allston, MA?

21 Ashford St, Allston, MA has 3 bedrooms, 2.5 bathrooms, 2,025 square feet of living space and a 0.07-acre lot.

When was 21 Ashford St, Allston, MA built?

21 Ashford St, Allston, MA was built in 1880, making it 146 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Ashford St, Allston, MA?

21 Ashford St, Allston, MA is assigned to Jackson Mann K-8 School (elementary); Boston Green Academy (high), rated D-. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Ashford St, Allston, MA compare to other homes in Allston 02134?

Among the 3,516 homes in Allston 02134, it is worth more than 92% of them ($1,011,173 against a typical $546,963), its price per square foot is higher than 12% of them ($499 against a typical $633), it is bigger than 66% of them (2,025 ft² against a typical 1,190 ft²), its lot is bigger than 65% of them (3,000 ft² against a typical 1,263 ft²) and it is newer than 2% of them (1880 against a typical 1920). Measured against all of Suffolk County, it is worth more than 78% 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 21 Ashford St, Allston, MA?

The 2025 property tax bill for 21 Ashford St, Allston, MA was $8,915. The county assessed it at $769,900.

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