Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential

23 Elm St

SOMERVILLE, MA 02143
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
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 19873 floors27 units765–1,211 ft²
$21M
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.
$789K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$758
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+11.2%vs the Somerville ZIP median sale $/ft² ($682)

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.
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.
+4.4%per yeartypical hold 7.8 yrsfrom 52 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
19871992199720012006201120192024
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
19871992199720012006201120192024

80 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.
$601K$687K$773K$859K765 ft²854 ft²943 ft²1,033 ft²1,122 ft²1,211 ft²
1 bd2 bd3 bd
1 bed
3 units
2 bed
23 units
3 bed
1 unit
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 · 765 ft²
2 units
2 bd · 2 ba · 1,204 ft²
2 units
One-off layouts
23 units

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.

$601K–$626K
3 units
$719K–$729K
3 units
$759K–$759K
1 unit
$763K–$794K
10 units
$799K–$819K
3 units
$832K–$859K
7 units

Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.

Floor 1
$755/ft²
Floor 2
$744/ft²
Floor 3
$759/ft²
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·04
$806/ft²
Line ·09
$806/ft²
Line ·05
$767/ft²
Line ·03
$763/ft²
Line ·06
$758/ft²
Line ·02
$731/ft²
Line ·01
$730/ft²
Line ·07
$709/ft²
Line ·08
$701/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.70%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.11%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.17.2 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.33%
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.32%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$762,355
Median tax billThe middle annual property tax bill among the building's units.$7,530
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 301Oct 24, 2024$760,000Unit 103Jul 21, 2022$755,000Unit 104May 10, 2022$740,000Unit 304Aug 26, 2021$730,000Unit 307Oct 26, 2020$719,000Unit 309Sep 27, 2019$583,000Unit 209Aug 31, 2018$579,900Unit 201May 31, 2018$698,000Unit 205Aug 5, 2016$525,000Unit 306Jul 31, 2015$565,000

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

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.Roll Tar & Gravel
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
John F KennedyA
Elementary · Grades PK–8 · 0.2 mi
H
Somerville High SchoolC
High · Grades 9–12 · 0.9 mi

District: Somerville School District

Neighborhood · ZIP 02143These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.26,484
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.17,570 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,148
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,076
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.

23 Elm St # 101
2 bd · 2 ba · 1,028 ft²
$790K
23 Elm St # 102
2 bd · 2 ba · 1,026 ft²
$729K
23 Elm St # 103
2 bd · 2 ba · 1,053 ft²
$799K
23 Elm St # 104
2 bd · 1 ba · 971 ft²
$790K
23 Elm St # 105
2 bd · 1 ba · 966 ft²
$763K
23 Elm St # 106
2 bd · 2 ba · 1,097 ft²
$794K
23 Elm St # 107
2 bd · 2 ba · 1,204 ft²
$849K
23 Elm St # 108
2 bd · 2 ba · 1,112 ft²
$819K
23 Elm St # 109
1 bd · 1 ba · 765 ft²
$601K
23 Elm St # 201
2 bd · 2 ba · 1,119 ft²
$832K
23 Elm St # 202
2 bd · 2 ba · 1,023 ft²
$727K
23 Elm St # 203
2 bd · 2 ba · 1,054 ft²
$775K
23 Elm St # 204
2 bd · 1 ba · 969 ft²
$767K
23 Elm St # 205
2 bd · 1 ba · 1,014 ft²
$769K
23 Elm St # 206
2 bd · 2 ba · 1,093 ft²
$848K
23 Elm St # 207
2 bd · 2 ba · 1,204 ft²
$859K
23 Elm St # 208
2 bd · 2 ba · 1,110 ft²
$719K
23 Elm St # 209
1 bd · 1 ba · 767 ft²
$626K
23 Elm St # 301
2 bd · 2 ba · 1,121 ft²
$759K
23 Elm St # 302
2 bd · 2 ba · 1,024 ft²
$789K
23 Elm St # 303
3 bd · 2 ba · 1,054 ft²
$836K
23 Elm St # 304
2 bd · 1 ba · 965 ft²
$785K
23 Elm St # 305
2 bd · 1 ba · 1,019 ft²
$768K
23 Elm St # 306
2 bd · 2 ba · 1,105 ft²
$855K
23 Elm St # 307
2 bd · 2 ba · 1,211 ft²
$858K
23 Elm St # 308
2 bd · 2 ba · 1,116 ft²
$804K
23 Elm St # 309
1 bd · 1 ba · 765 ft²
$625K

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

About 23 Elm St

How many units are in 23 Elm St, Somerville, MA?

23 Elm St, Somerville, MA has 27 residential units across 3 floors, built in 1987, according to county assessor records.

What is a unit at 23 Elm St, Somerville, MA worth?

The median TopHap Estimate across the 27 units at 23 Elm St, Somerville, MA is $788,563. That works out to $758 per square foot. Units run from 765 to 1,211 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 23 Elm St, Somerville, MA expensive for Somerville?

Units at 23 Elm St, Somerville, MA carry a median of $758 per square foot, 11% above the Somerville median of $682 per square foot.

How often do units sell at 23 Elm St, Somerville, MA?

0 units at 23 Elm St, Somerville, MA sold in the last 12 months, out of 80 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 23 Elm St, Somerville, MA appreciated?

Across 52 repeat sales of the same unit, 23 Elm St, Somerville, MA returned a median 4.4% 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 7.8 years.

What floor plans does 23 Elm St, Somerville, MA have?

The most common plan at 23 Elm St, Somerville, MA is a 1-bedroom of 765 square feet, repeated 2 times, with a median estimate of $612,896. TopHap identifies 2 recurring plans in the building.

More homes on Elm St

Closest homes

More homes in Somerville 02143

Assigned schools

Explore the area

See this home in context

Open 23 Elm St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map