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Single Family ResidenceResidential
$689,534$724 / 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 95How 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 $665,000 on Sep 10, 2025

18 OVERLEA AVE

CHELSEA, MA 02150
3
Beds
2
Baths
952 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
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

$690K
$659K low$721K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$665,000 · Sep 10, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,763 (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.$589,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$236,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$352,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$521,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$602,870

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.30%
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.Ranch
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.12
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
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(4)

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
Chelsea High SchoolD-
High · Grades 9–12 · 0.8 mi
M
Clark Avenue SchoolF
Middle · Grades 5–8 · 1.0 mi
E
William a Berkowitz Elementary SchoolC+
Elementary · Grades 1–4 · 1.0 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 Overlea 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 91% of homes in Chelsea 02150
  • Among the highest price per square foot in Chelsea 02150
  • Smaller than 83% of homes in Chelsea 02150
  • Has a bigger lot than 77% of homes in Suffolk County
  • Newer than 78% 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
$278K$812K

This home is worth more than 91% 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$689,534
CheaperTypical $489,185Pricier

Pricier than 91% of homes nearby

Price per ft²$724
CheaperTypical $437Pricier

Pricier than almost all homes nearby

Living area952 ft²
SmallerTypical 1,718 ft²Bigger

Bigger than 17% of homes nearby

Lot size0.12 ac
SmallerTypical 3,703 ft²Bigger

Bigger than 76% of homes nearby

Year built1970
OlderTypical 1920Newer

Newer than 77% of homes nearby

How 18 Overlea Ave ranks against every home in each area.
MeasureThis homeChelsea 02150Suffolk County
Estimated valuepricier than$689,53491% of homes47% of homes
Price per ft²pricier than$724almost all homes61% of homes
Living areabigger than952 ft²17% of homes25% of homes
Lot sizebigger than0.12 ac76% of homes77% of homes
Year builtnewer than197077% of homes78% of homes

About 18 Overlea Ave

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

The TopHap Estimate for 18 Overlea Ave, Chelsea, MA is $689,534 as of Sep 24, 2026. The likely range is $658,505 to $720,563. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

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

18 Overlea Ave, Chelsea, MA last sold on Sep 10, 2025 for $665,000, according to the county's recorded deed.

How big is 18 Overlea Ave, Chelsea, MA?

18 Overlea Ave, Chelsea, MA has 3 bedrooms, 2 bathrooms, 952 square feet of living space and a 0.12-acre lot.

When was 18 Overlea Ave, Chelsea, MA built?

18 Overlea Ave, Chelsea, MA was built in 1970, making it 56 years old. It is a ranch home. The building has 1 story.

What schools serve 18 Overlea Ave, Chelsea, MA?

18 Overlea Ave, Chelsea, MA is assigned to Chelsea High School (high), rated D-; Clark Avenue School (middle), rated F; 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 18 Overlea Ave, Chelsea, MA compare to other homes in Chelsea 02150?

Among the 5,340 homes in Chelsea 02150, it is worth more than 91% of them ($689,534 against a typical $489,185), its price per square foot is higher than almost all of them ($724 against a typical $437), it is bigger than 17% of them (952 ft² against a typical 1,718 ft²), its lot is bigger than 76% of them (0.12 ac against a typical 3,703 ft²) and it is newer than 77% of them (1970 against a typical 1920). Measured against all of Suffolk County, it is worth more than 47% 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 Overlea Ave, Chelsea, MA?

The 2026 property tax bill for 18 Overlea Ave, Chelsea, MA was $6,763. The county assessed it at $589,100.

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