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CondominiumResidential
Last sold for $215,000 on Aug 31, 2015

10 ROBERTS ST

SOMERVILLE, MA 02145
0.35 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 195020 units387–552 ft²
$6.1M
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.
$377K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$734
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+18.3%vs the Somerville ZIP median sale $/ft² ($620)

Sales Performance

$336K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
2
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
10.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+4.6%per yeartypical hold 11.6 yrsfrom 13 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20002002200320122013201720192026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20002002200320122013201720192026

36 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.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$277K$321K$364K$408K387 ft²420 ft²453 ft²486 ft²519 ft²552 ft²
1 bd
1 bed
20 units
Recurring 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.
1 bd · 1 ba · 529 ft²
6 units
1 bd · 1 ba · 552 ft²
6 units
1 bd · 1 ba · 387 ft²
5 units
1 bd · 1 ba · 550 ft²
2 units
One-off layouts
1 unit

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$277K–$290K
4 units
$297K–$297K
1 unit
$368K–$371K
2 units
$376K–$390K
6 units
$396K–$408K
4 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.50%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.15%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.13.5 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.25%
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.83%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$375,222
Median tax billThe middle annual property tax bill among the building's units.$4,132
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.

Unit 32Jul 7, 2026$297,000Unit 14Feb 3, 2026$375,000Unit 11Nov 21, 2022$374,900Unit 33Aug 12, 2022$415,000Unit 22May 20, 2019$272,000Unit 14Jun 7, 2017$339,900Unit 11Jul 31, 2014$259,000Unit 21Jul 1, 2014$242,500Unit 36Oct 28, 2013$203,500Unit 15Oct 1, 2012$135,000

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,427 (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.$314,100 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$314,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$420,090

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Baseboard
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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
Benjamin G BrownA-
Elementary · Grades KG–5 · 0.4 mi
M
Winter Hill CommunityC-
Middle · Grades PK–8 · 0.5 mi
H
Somerville High SchoolB-
High · Grades 9–12 · 0.8 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.

10 Roberts St
1 bd · 1 ba · 387 ft²
10 Roberts St # 11
1 bd · 1 ba · 552 ft²
$386K
10 Roberts St # 12
1 bd · 1 ba · 387 ft²
$288K
10 Roberts St # 13
1 bd · 1 ba · 529 ft²
$390K
10 Roberts St # 14
1 bd · 1 ba · 529 ft²
$371K
10 Roberts St # 15
1 bd · 1 ba · 552 ft²
10 Roberts St # 16
1 bd · 1 ba · 502 ft²
$368K
10 Roberts St # 20
1 bd · 1 ba · 387 ft²
$284K
10 Roberts St # 21
1 bd · 1 ba · 552 ft²
10 Roberts St # 22
1 bd · 1 ba · 387 ft²
$277K
10 Roberts St # 23
1 bd · 1 ba · 529 ft²
$377K
10 Roberts St # 24
1 bd · 1 ba · 529 ft²
$403K
10 Roberts St # 25
1 bd · 1 ba · 552 ft²
$408K
10 Roberts St # 26
1 bd · 1 ba · 550 ft²
$404K
10 Roberts St # 30
1 bd · 1 ba · 387 ft²
$290K
10 Roberts St # 31
1 bd · 1 ba · 552 ft²
10 Roberts St # 32
1 bd · 1 ba · 387 ft²
$297K
10 Roberts St # 33
1 bd · 1 ba · 529 ft²
$390K
10 Roberts St # 34
1 bd · 1 ba · 529 ft²
$376K
10 Roberts St # 35
1 bd · 1 ba · 552 ft²
$396K
10 Roberts St # 36
1 bd · 1 ba · 550 ft²
$390K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 10 Roberts St

How many units are in 10 Roberts St, Somerville, MA?

10 Roberts St, Somerville, MA has 20 residential units across built in 1950, according to county assessor records.

What is a unit at 10 Roberts St, Somerville, MA worth?

The median TopHap Estimate across the 20 units at 10 Roberts St, Somerville, MA is $377,256. That works out to $734 per square foot. Units run from 387 to 552 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 10 Roberts St, Somerville, MA expensive for Somerville?

Units at 10 Roberts St, Somerville, MA carry a median of $734 per square foot, 18% above the Somerville median of $620 per square foot.

How often do units sell at 10 Roberts St, Somerville, MA?

2 units at 10 Roberts St, Somerville, MA sold in the last 12 months, out of 36 recorded arms-length sales all time. That is a turnover rate of 10.0% of the building per year. The median sale over that period was $336K.

Have units at 10 Roberts St, Somerville, MA appreciated?

Across 13 repeat sales of the same unit, 10 Roberts St, Somerville, MA returned a median 4.6% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 11.6 years.

What floor plans does 10 Roberts St, Somerville, MA have?

The most common plan at 10 Roberts St, Somerville, MA is a 1-bedroom of 529 square feet, repeated 6 times, with a median estimate of $383,406. TopHap identifies 4 recurring plans in the building.

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