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Single Family ResidenceResidential
$643,873$479 / 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 90How 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 $600,000 on Jun 17, 2025

143 SUMMIT AVE

CHELSEA, MA 02150
3
Beds
1
Baths
1,344 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.
3,912 ft²
Lot SizeThe size of the land the home sits on, from county records.
1928
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.

Valuation

$644K
$582K low$706K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$600,000 · Jun 17, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,983 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$521,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$219,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$301,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$477,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$567,150

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.0.09
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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.

M
Clark Avenue SchoolF
Middle · Grades 5–8 · 0.4 mi
H
Chelsea High SchoolD-
High · Grades 9–12 · 0.5 mi
E
William a Berkowitz Elementary SchoolC+
Elementary · Grades 1–4 · 0.7 mi

District: Chelsea School District

Neighborhood · ZIP 02150These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
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.40,106
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16,087 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,192
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,537
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

143 Summit Ave 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 85% of homes in Chelsea 02150
  • Costs less per square foot than 72% of homes in Suffolk County

What homes are worth in Chelsea 02150

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

This home
$282K$820K

This home is worth more than 85% of homes in Chelsea 02150.

How it measures up in Chelsea 02150

The dot is this home. The mark in the middle is the typical home in Chelsea 02150.

Estimated value$643,873
CheaperTypical $490,503Pricier

Pricier than 85% of homes nearby

Price per ft²$479
CheaperTypical $437Pricier

Pricier than 70% of homes nearby

Living area1,344 ft²
SmallerTypical 1,745 ft²Bigger

Bigger than 37% of homes nearby

Lot size3,912 ft²
SmallerTypical 3,703 ft²Bigger

Bigger than 54% of homes nearby

Year built1928
OlderTypical 1920Newer

Newer than 61% of homes nearby

How 143 Summit Ave ranks against every home in each area.
MeasureThis homeChelsea 02150Suffolk County
Estimated valuepricier than$643,87385% of homes40% of homes
Price per ft²pricier than$47970% of homes28% of homes
Living areabigger than1,344 ft²37% of homes45% of homes
Lot sizebigger than3,912 ft²54% of homes62% of homes
Year builtnewer than192861% of homes59% of homes

About 143 Summit Ave

How much is 143 Summit Ave, Chelsea, MA worth?

The TopHap Estimate for 143 Summit Ave, Chelsea, MA is $643,873 as of Sep 24, 2026. The likely range is $582,149 to $705,597. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 143 Summit Ave, Chelsea, MA last sell?

143 Summit Ave, Chelsea, MA last sold on Jun 17, 2025 for $600,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 143 Summit Ave, Chelsea, MA?

143 Summit Ave, Chelsea, MA has 3 bedrooms, 1 bathrooms, 1,344 square feet of living space and a 0.09-acre lot.

When was 143 Summit Ave, Chelsea, MA built?

143 Summit Ave, Chelsea, MA was built in 1928, making it 98 years old. It is a colonial home. The building has 2 stories.

What schools serve 143 Summit Ave, Chelsea, MA?

143 Summit Ave, Chelsea, MA is assigned to Clark Avenue School (middle), rated F; Chelsea High School (high), rated D-; William a Berkowitz Elementary School (elementary), rated C+. All sit in Chelsea School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 143 Summit Ave, Chelsea, MA compare to other homes in Chelsea 02150?

Among the 5,340 homes in Chelsea 02150, it is worth more than 85% of them ($643,873 against a typical $490,503), its price per square foot is higher than 70% of them ($479 against a typical $437), it is bigger than 37% of them (1,344 ft² against a typical 1,745 ft²), its lot is bigger than 54% of them (3,912 ft² against a typical 3,703 ft²) and it is newer than 61% of them (1928 against a typical 1920). Measured against all of Suffolk County, it is worth more than 40% 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 143 Summit Ave, Chelsea, MA?

The 2026 property tax bill for 143 Summit Ave, Chelsea, MA was $5,983. The county assessed it at $521,200.

More homes on Summit Ave

Closest homes

More homes in Chelsea 02150

Assigned schools

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