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CondominiumResidential
Last sold for $720,000 on Nov 14, 2016

3 ARLINGTON ST

CAMBRIDGE, MA 02140
0.79 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 193035 units281–965 ft²
$23M
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.
$650K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$926
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+22.4%vs the Cambridge ZIP median sale $/ft² ($756)

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.
+8.1%per yeartypical hold 5.8 yrsfrom 39 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
19951999200220072011201620192025
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
19951999200220072011201620192025

76 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.
$388K$690K$993K$1.3M281 ft²418 ft²555 ft²691 ft²828 ft²965 ft²
1 bd2 bd
1 bed
26 units
2 bed
9 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 · 281 ft²
5 units
1 bd · 1 ba · 766 ft²
5 units
1 bd · 1 ba · 712 ft²
4 units
2 bd · 1 ba · 869 ft²
4 units
2 bd · 1 ba · 965 ft²
4 units
1 bd · 1 ba · 670 ft²
3 units
1 bd · 1 ba · 686 ft²
3 units
One-off layouts
7 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.

$388K–$396K
3 units
$511K–$613K
6 units
$616K–$724K
18 units
$764K–$809K
4 units
$850K–$850K
1 unit
$971K–$971K
1 unit
$1.3M–$1.3M
1 unit

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.54%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.17%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.15.3 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.60%
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.22%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$688,505
Median tax billThe middle annual property tax bill among the building's units.$4,013
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 7Oct 1, 2025$740,000Unit 54Sep 4, 2025$705,000Unit 26Aug 1, 2024$820,000Unit 5Oct 23, 2023$701,000Unit 35Aug 8, 2022$608,000Unit 44Mar 26, 2019$585,000Unit 34Nov 20, 2018$638,000Unit 57Jun 1, 2018$1,170,000Unit 56Jun 1, 2018$1,170,000Unit 2Sep 25, 2017$450,000

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.$3,663 (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.$576,800 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$576,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$909,435

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
92
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(12)

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
Maria L. BaldwinA+
Elementary · Grades PK–5 · 0.3 mi
M
Rindge Avenue Upper SchoolA
Middle · Grades 6–8 · 0.6 mi
H
Cambridge Rindge and LatinB
High · Grades 9–12 · 0.9 mi

District: Cambridge School District

Neighborhood · ZIP 02140These 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.144
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
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.21,983
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.18,668 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$139,100
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$171,802
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.

3 Arlington St
1 bd · 1 ba · 633 ft²
$778K
3 Arlington St # 1
1 bd · 1 ba · 528 ft²
$559K
3 Arlington St # 2
1 bd · 1 ba · 493 ft²
$524K
3 Arlington St # 4
1 bd · 1 ba · 487 ft²
$511K
3 Arlington St # 5
1 bd · 1 ba · 664 ft²
$651K
3 Arlington St # 6
1 bd · 1 ba · 766 ft²
3 Arlington St # 7
2 bd · 1 ba · 869 ft²
$724K
3 Arlington St # 8
1 bd · 1 ba · 281 ft²
$388K
3 Arlington St # 21
2 bd · 1 ba · 965 ft²
$764K
3 Arlington St # 22
1 bd · 1 ba · 670 ft²
$613K
3 Arlington St # 23
1 bd · 1 ba · 686 ft²
$620K
3 Arlington St # 24
1 bd · 1 ba · 712 ft²
$627K
3 Arlington St # 25
1 bd · 1 ba · 766 ft²
$637K
3 Arlington St # 26
2 bd · 1 ba · 869 ft²
$772K
3 Arlington St # 27
1 bd · 1 ba · 281 ft²
$389K
3 Arlington St # 31
2 bd · 1 ba · 965 ft²
$850K
3 Arlington St # 32
1 bd · 1 ba · 670 ft²
$616K
3 Arlington St # 33
1 bd · 1 ba · 686 ft²
$632K
3 Arlington St # 34
1 bd · 1 ba · 712 ft²
$657K
3 Arlington St # 35
1 bd · 1 ba · 766 ft²
$695K
3 Arlington St # 36
2 bd · 1 ba · 869 ft²
$809K
3 Arlington St # 37
1 bd · 1 ba · 281 ft²
$591K
3 Arlington St # 41
2 bd · 1 ba · 965 ft²
$777K
3 Arlington St # 42
1 bd · 1 ba · 670 ft²
$629K
3 Arlington St # 43
1 bd · 1 ba · 686 ft²
$659K
3 Arlington St # 44
1 bd · 1 ba · 712 ft²
$676K
3 Arlington St # 45
1 bd · 1 ba · 766 ft²
$613K
3 Arlington St # 46
2 bd · 1 ba · 868 ft²
$716K
3 Arlington St # 47
1 bd · 1 ba · 281 ft²
$396K
3 Arlington St # 51
2 bd · 1 ba · 965 ft²
$712K
3 Arlington St # 52
1 bd · 1 ba · 657 ft²
$650K
3 Arlington St # 53
1 bd · 1 ba · 672 ft²
$624K
3 Arlington St # 54
1 bd · 1 ba · 712 ft²
$689K
3 Arlington St # 55
1 bd · 1 ba · 766 ft²
$653K
3 Arlington St # 56
2 bd · 1 ba · 869 ft²
$1.3M
3 Arlington St # 57
1 bd · 1 ba · 281 ft²
$971K

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

About 3 Arlington St

How many units are in 3 Arlington St, Cambridge, MA?

3 Arlington St, Cambridge, MA has 35 residential units across built in 1930, according to county assessor records.

What is a unit at 3 Arlington St, Cambridge, MA worth?

The median TopHap Estimate across the 35 units at 3 Arlington St, Cambridge, MA is $650,424. That works out to $926 per square foot. Units run from 281 to 965 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 3 Arlington St, Cambridge, MA expensive for Cambridge?

Units at 3 Arlington St, Cambridge, MA carry a median of $926 per square foot, 22% above the Cambridge median of $756 per square foot.

How often do units sell at 3 Arlington St, Cambridge, MA?

0 units at 3 Arlington St, Cambridge, MA sold in the last 12 months, out of 76 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 3 Arlington St, Cambridge, MA appreciated?

Across 39 repeat sales of the same unit, 3 Arlington St, Cambridge, MA returned a median 8.1% 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 5.8 years.

What floor plans does 3 Arlington St, Cambridge, MA have?

The most common plan at 3 Arlington St, Cambridge, MA is a 1-bedroom of 281 square feet, repeated 5 times, with a median estimate of $396,479. TopHap identifies 7 recurring plans in the building.

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