CondominiumResidential
21 Forster St
SOMERVILLE, MA 02145
3,805 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.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 19202 units873–899 ft²
$1.2M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$624K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$704
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
+2.3%vs the Somerville ZIP median sale $/ft² ($688)
Sales Performance
—
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
2 arms-length sales on record for this building.
Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bed
2 units$624K · $704/ft²
Ownership & Financing
Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.100%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.18.1 yrs
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.20%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$575,086
Median tax billThe middle annual property tax bill among the building's units.$6,151
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0
Recent SalesThe latest recorded arms-length sales in the building, newest first.
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
HeatingThe type of heating system in the home.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EH
Winter Hill CommunityC-
Elementary · Grades PK–8 · 0.1 mi
Somerville High SchoolB-
High · Grades 9–12 · 0.5 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%
All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 21 Forster St
How many units are in 21 Forster St, Somerville, MA?
21 Forster St, Somerville, MA has 2 residential units across built in 1920, according to county assessor records.
What is a unit at 21 Forster St, Somerville, MA worth?
The median TopHap Estimate across the 2 units at 21 Forster St, Somerville, MA is $623,865. That works out to $704 per square foot. Units run from 873 to 899 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 21 Forster St, Somerville, MA expensive for Somerville?
Units at 21 Forster St, Somerville, MA carry a median of $704 per square foot, 2% above the Somerville median of $688 per square foot.
How often do units sell at 21 Forster St, Somerville, MA?
0 units at 21 Forster St, Somerville, MA sold in the last 12 months, out of 2 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.
More homes on Forster St
- 15 Forster St5 bd · 3 ba · 2,875 ft² · Sold $1M · Nov 2022
- 22 Forster St # 1$1.2M2 bd · 3.5 ba · 1,075 ft² · Sold $906K · Jan 2020
- 18 Forster St$1.1M3 bd · 1.5 ba · 1,954 ft² · Sold $975K · Jul 2019
- 22 Forster St # 2$955K2 bd · 2 ba · 1,560 ft² · Sold $916K · Jul 2018
- 5 Forster St6 bd · 4 ba · 3,615 ft² · Sold $572K · Jul 2011
- 19 Forster St$592K2 bd · 1 ba · 873 ft² · Sold $319K · Oct 2010
- 21 Forster St # 3$647K2 bd · 1 ba · 899 ft² · Sold $345K · Aug 2004
- 11 Forster St6 bd · 3 ba · 4,394 ft² · Sold Jul 2002
- 9 Forster St5 bd · 4 ba · 4,097 ft²
- 23 Forster St4 bd · 2 ba · 2,922 ft²
Closest homes
- 19 Forster St$592K0 ft · 2 bd · 1 ba · 873 ft² · Sold $319K · Oct 2010
- 21 Forster St$647K0 ft · 2 bd · 1 ba · 899 ft² · Sold $345K · Aug 2004
- 23 Forster St55 ft · 4 bd · 2 ba · 2,922 ft²
- 52 Browning Rd68 ft · 4 bd · 2 ba · 2,380 ft²
- 15 Forster St58 ft · 5 bd · 3 ba · 2,875 ft² · Sold $1M · Nov 2022
- 56 Browning Rd$1.4M90 ft · 4 bd · 2.5 ba · 1,851 ft² · Sold $198K · Jun 1994
- 18 Forster St$1.1M90 ft · 3 bd · 1.5 ba · 1,954 ft² · Sold $975K · Jul 2019
- 11 Forster St102 ft · 6 bd · 3 ba · 4,394 ft² · Sold Jul 2002
More homes in Somerville 02145
- 6 Macarthur St8 bd · 6 ba · 2,962 ft² · Sold $1.7M · Sep 2026
- 66 Murdock St$748K2 bd · 1.5 ba · 808 ft² · Sold $600K · Sep 2026
- 60 Cross St E$825K3 bd · 2 ba · 1,200 ft² · Sold $825K · Sep 2026
- 25 Partridge Ave$1.2M3 bd · 1.5 ba · 1,190 ft² · Sold $1.2M · Sep 2026
- 9 Dell St$702K3 bd · 1 ba · 1,162 ft² · Sold $840K · Sep 2026
- 5 Essex St5 bd · 4.5 ba · 2,665 ft² · Sold $1.1M · Aug 2026
- 57 Myrtle St8 bd · 4 ba · 3,026 ft² · Sold $1.5M · Aug 2026
- 474 Broadway$443K1 bd · 1 ba · 640 ft² · Sold $445K · Aug 2026
- 12 Walter Ter$671K3 bd · 1.5 ba · 1,040 ft² · Sold $672K · Aug 2026
- 29 Gilman St$890K5 bd · 1 ba · 1,806 ft² · Sold $890K · Aug 2026
- 60 Franklin St$835K3 bd · 1.5 ba · 1,828 ft² · Sold $1.4M · Aug 2026
- 206 Pearl St$798K4 bd · 2 ba · 1,560 ft² · Sold $800K · Aug 2026
Assigned schools
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