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Single Family ResidenceResidential
$942,937$536 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

20 JAMES ST

SOMERVILLE, MA 02145
4
Beds
2
Baths
1,760 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.
2,660 ft²
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
10
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

$943K
$869K low$1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,368 (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.$858,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$360,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$498,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,302,735

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.21 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.Conventional
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.06
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
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.

H
Somerville High SchoolC
High · Grades 9–12 · 0.2 mi
E
Winter Hill CommunityD-
Elementary · Grades PK–8 · 0.3 mi

District: Somerville School District

Neighborhood · ZIP 02145These 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.149
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.79

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.28,555
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.18,339 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$102,354
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,420
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

20 James 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 73% of homes in Winter Hill
  • Costs less per square foot than 82% of homes in Somerville 02145
  • Has a smaller lot than 97% of homes in Middlesex County
  • Newer than 85% of homes in Winter Hill

What homes are worth in Somerville 02145

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

This home
$357K$1.6M

This home is worth more than 71% of homes in Somerville 02145.

How it measures up in Somerville 02145

The dot is this home. The mark in the middle is the typical home in Somerville 02145.

Estimated value$942,937
CheaperTypical $773,631Pricier

Pricier than 71% of homes nearby

Price per ft²$536
CheaperTypical $629Pricier

Pricier than 18% of homes nearby

Living area1,760 ft²
SmallerTypical 1,870 ft²Bigger

Bigger than 47% of homes nearby

Lot size2,660 ft²
SmallerTypical 3,925 ft²Bigger

Bigger than 18% of homes nearby

Year built1920
OlderTypical 1900Newer

Newer than 79% of homes nearby

How 20 James St ranks against every home in each area.
MeasureThis homeWinter HillSomerville 02145Middlesex County
Estimated valuepricier than$942,93773% of homes71% of homes67% of homes
Price per ft²pricier than$53624% of homes18% of homes66% of homes
Living areabigger than1,760 ft²44% of homes47% of homes47% of homes
Lot sizebigger than2,660 ft²14% of homes18% of homes3% of homes
Year builtnewer than192085% of homes79% of homes26% of homes

About 20 James St

How much is 20 James St, Somerville, MA worth?

The TopHap Estimate for 20 James St, Somerville, MA is $942,937 as of Oct 21, 2026. The likely range is $869,494 to $1,016,380. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 James St, Somerville, MA last sell?

20 James St, Somerville, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20 James St, Somerville, MA?

20 James St, Somerville, MA has 4 bedrooms, 2 bathrooms, 1,760 square feet of living space and a 0.06-acre lot.

When was 20 James St, Somerville, MA built?

20 James St, Somerville, MA was built in 1920, making it 106 years old. It is a conventional home. The building has 3 stories.

What schools serve 20 James St, Somerville, MA?

20 James St, Somerville, MA is assigned to Somerville High School (high), rated C; Winter Hill Community (elementary), rated D-. All sit in Somerville School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 James St, Somerville, MA compare to other homes in Somerville 02145?

Among the 5,477 homes in Somerville 02145, it is worth more than 71% of them ($942,937 against a typical $773,631), its price per square foot is higher than 18% of them ($536 against a typical $629), it is bigger than 47% of them (1,760 ft² against a typical 1,870 ft²), its lot is bigger than 18% of them (2,660 ft² against a typical 3,925 ft²) and it is newer than 79% of them (1920 against a typical 1900). Measured against all of Middlesex County, it is worth more than 67% 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 20 James St, Somerville, MA?

The 2025 property tax bill for 20 James St, Somerville, MA was $9,368. The county assessed it at $858,700.

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