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Duplex (2 Units, Any Combination)Residential
Last sold for $367,000 on Mar 27, 2002

21 RICHARDSON ST

SOMERVILLE, MA 02145
5
Beds
2
Baths
2,590 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.
2,480 ft²
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.
11
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.$367,000 · Mar 27, 2002
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$287,600
WASHINGTON MUTUAL BANK · recorded Oct 14, 2004
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$29,350
SOMERVILLE CITY

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,146 (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.$1,021,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$439,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$582,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,021,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Two Family
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Winter Hill CommunityC-
Elementary · Grades PK–8 · 0.4 mi
H
Somerville High SchoolB-
High · Grades 9–12 · 0.7 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

21 Richardson 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.

  • Bigger than 81% of homes in Magoun Square
  • Has a smaller lot than 97% of homes in Middlesex County
  • Older than 85% of homes in Middlesex County

How it measures up in Somerville 02145

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

Living area2,590 ft²
SmallerTypical 1,869 ft²Bigger

Bigger than 71% of homes nearby

Lot size2,480 ft²
SmallerTypical 3,903 ft²Bigger

Bigger than 15% of homes nearby

Year built1900
OlderTypical 1900Newer

Newer than 50% of homes nearby

How 21 Richardson St ranks against every home in each area.
MeasureThis homeMagoun SquareSomerville 02145Middlesex County
Living areabigger than2,590 ft²81% of homes71% of homes76% of homes
Lot sizebigger than2,480 ft²21% of homes15% of homes3% of homes
Year builtnewer than190038% of homes50% of homes15% of homes

About 21 Richardson St

When did 21 Richardson St, Somerville, MA last sell?

21 Richardson St, Somerville, MA last sold on Mar 27, 2002 for $367,000, according to the county's recorded deed.

How big is 21 Richardson St, Somerville, MA?

21 Richardson St, Somerville, MA has 5 bedrooms, 2 bathrooms, 2,590 square feet of living space and a 0.06-acre lot.

When was 21 Richardson St, Somerville, MA built?

21 Richardson St, Somerville, MA was built in 1900, making it 126 years old. It is a two family home. The building has 3 stories.

What schools serve 21 Richardson St, Somerville, MA?

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

How does 21 Richardson St, Somerville, MA compare to other homes in Somerville 02145?

Among the 5,477 homes in Somerville 02145, it is bigger than 71% of them (2,590 ft² against a typical 1,869 ft²), its lot is bigger than 15% of them (2,480 ft² against a typical 3,903 ft²) and it is newer than 50% of them (1900 against a typical 1900). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21 Richardson St, Somerville, MA?

The 2025 property tax bill for 21 Richardson St, Somerville, MA was $11,146. The county assessed it at $1,021,600.

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Assigned schools

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