Skip to content
Skip to content
TopHapOpen in map
Commercial Office/Residential (Mixed Use)Commercial
Last sold for $840,000 on Sep 17, 2013

15 CONGRESS AVE

CHELSEA, MA 02150
20
Beds
3
Baths
9,495 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.
0.13 ac
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.
3
StoriesHow many floors the home has above ground.
45
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$840,000 · Sep 17, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,278 (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.$1,330,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$234,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,095,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,657,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,448,750

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Commercial Office/Residential (Mixed Use)
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.13
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
RoofThe main material covering the roof, such as asphalt shingle or tile.Roll Tar & Gravel
HeatingThe type of heating system in the home.Baseboard
GarageWhether the property has a garage, and details like whether it is attached to the home.No Garage
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.

M
Eugene Wright Science and Technology AcademyD-
Middle · Grades 5–8 · 0.3 mi
H
Chelsea High SchoolD-
High · Grades 9–12 · 0.7 mi
E
William a Berkowitz Elementary SchoolC+
Elementary · Grades 1–4 · 1.1 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%

Owner Tools

Do you own this home?
Claim this home

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

15 Congress 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.

  • Among the largest homes in Suffolk County
  • Has a bigger lot than 81% of homes in Suffolk County
  • Older than 69% of homes in Suffolk County

How it measures up in Chelsea 02150

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

Living area9,495 ft²
SmallerTypical 1,754 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.13 ac
SmallerTypical 3,703 ft²Bigger

Bigger than 80% of homes nearby

Year built1900
OlderTypical 1920Newer

Newer than 39% of homes nearby

How 15 Congress Ave ranks against every home in each area.
MeasureThis homeChelsea 02150Suffolk County
Living areabigger than9,495 ft²98% of homesalmost all homes
Lot sizebigger than0.13 ac80% of homes81% of homes
Year builtnewer than190039% of homes31% of homes

About 15 Congress Ave

When did 15 Congress Ave, Chelsea, MA last sell?

15 Congress Ave, Chelsea, MA last sold on Sep 17, 2013 for $840,000, according to the county's recorded deed.

How big is 15 Congress Ave, Chelsea, MA?

15 Congress Ave, Chelsea, MA has 20 bedrooms, 3 bathrooms, 9,495 square feet of living space and a 0.13-acre lot.

When was 15 Congress Ave, Chelsea, MA built?

15 Congress Ave, Chelsea, MA was built in 1900, making it 126 years old. The building has 3 stories.

What schools serve 15 Congress Ave, Chelsea, MA?

15 Congress Ave, Chelsea, MA is assigned to Eugene Wright Science and Technology Academy (middle), rated D-; 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 15 Congress Ave, Chelsea, MA compare to other homes in Chelsea 02150?

Among the 5,340 homes in Chelsea 02150, it is bigger than 98% of them (9,495 ft² against a typical 1,754 ft²), its lot is bigger than 80% of them (0.13 ac against a typical 3,703 ft²) and it is newer than 39% of them (1900 against a typical 1920). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 15 Congress Ave, Chelsea, MA?

The 2026 property tax bill for 15 Congress Ave, Chelsea, MA was $15,278. The county assessed it at $1,330,800.

More homes on Congress Ave

Closest homes

More homes in Chelsea 02150

Assigned schools

Explore the area

See this home in context

Open 15 Congress Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map