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Single Family ResidenceResidential
$588,871$469 / 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 93How 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 $441,000 on Jan 28, 2020

18 SUMMIT AVE

CHELSEA, MA 02150
3
Beds
1.5
Baths
1,256 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.
0.18 ac
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.

Valuation

$589K
$550K low$627K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$441,000 · Jan 28, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,309 (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.$549,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$249,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$299,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$537,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$595,270

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.Conventional
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.18
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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(7)

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
William a Berkowitz Elementary SchoolB
Elementary · Grades 1–4 · 0.4 mi
M
Clark Avenue SchoolD
Middle · Grades 5–8 · 0.4 mi
H
Chelsea High SchoolD-
High · Grades 9–12 · 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

18 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 75% of homes in Chelsea 02150
  • Costs less per square foot than 74% of homes in Suffolk County
  • Smaller than 66% of homes in Chelsea 02150
  • Has a bigger lot than 93% of homes in Chelsea 02150

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
$284K$838K

This home is worth more than 75% 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$588,871
CheaperTypical $491,121Pricier

Pricier than 75% of homes nearby

Price per ft²$469
CheaperTypical $437Pricier

Pricier than 64% of homes nearby

Living area1,256 ft²
SmallerTypical 1,750 ft²Bigger

Bigger than 34% of homes nearby

Lot size0.18 ac
SmallerTypical 3,659 ft²Bigger

Bigger than 93% of homes nearby

Year built1910
OlderTypical 1920Newer

Newer than 43% of homes nearby

How 18 Summit Ave ranks against every home in each area.
MeasureThis homeChelsea 02150Suffolk County
Estimated valuepricier than$588,87175% of homes31% of homes
Price per ft²pricier than$46964% of homes26% of homes
Living areabigger than1,256 ft²34% of homes41% of homes
Lot sizebigger than0.18 ac93% of homes92% of homes
Year builtnewer than191043% of homes45% of homes

About 18 Summit Ave

How much is 18 Summit Ave, Chelsea, MA worth?

The TopHap Estimate for 18 Summit Ave, Chelsea, MA is $588,871 as of Sep 24, 2026. The likely range is $550,387 to $627,355. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Summit Ave, Chelsea, MA last sell?

18 Summit Ave, Chelsea, MA last sold on Jan 28, 2020 for $441,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 18 Summit Ave, Chelsea, MA?

18 Summit Ave, Chelsea, MA has 3 bedrooms, 1.5 bathrooms, 1,256 square feet of living space and a 0.18-acre lot.

When was 18 Summit Ave, Chelsea, MA built?

18 Summit Ave, Chelsea, MA was built in 1910, making it 116 years old. It is a conventional home. The building has 2 stories.

What schools serve 18 Summit Ave, Chelsea, MA?

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

How does 18 Summit Ave, Chelsea, MA compare to other homes in Chelsea 02150?

Among the 5,340 homes in Chelsea 02150, it is worth more than 75% of them ($588,871 against a typical $491,121), its price per square foot is higher than 64% of them ($469 against a typical $437), it is bigger than 34% of them (1,256 ft² against a typical 1,750 ft²), its lot is bigger than 93% of them (0.18 ac against a typical 3,659 ft²) and it is newer than 43% of them (1910 against a typical 1920). Measured against all of Suffolk County, it is worth more than 31% 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 18 Summit Ave, Chelsea, MA?

The 2026 property tax bill for 18 Summit Ave, Chelsea, MA was $6,309. The county assessed it at $549,600.

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Assigned schools

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