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CondominiumResidential

142 Commercial St

BOSTON, MA 02109
875 ft²
Lot SizeThe size of the land the home sits on, from county records.
1856
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 18566 floors30 units780–1,160 ft²
$26M
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.
$857K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$977
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+3.1%vs the Boston ZIP median sale $/ft² ($947)

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.
+5.4%per yeartypical hold 5.7 yrsfrom 42 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
19871991199620002005201120192025
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
19871991199620002005201120192025

70 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.
$715K$842K$968K$1.1M780 ft²856 ft²932 ft²1,008 ft²1,084 ft²1,160 ft²
1 bd2 bd
1 bed
24 units
2 bed
6 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 · 795 ft²
6 units
1 bd · 1 ba · 875 ft²
6 units
1 bd · 1 ba · 780 ft²
3 units
1 bd · 1 ba · 860 ft²
3 units
2 bd · 1 ba · 1,160 ft²
3 units
1 bd · 1 ba · 865 ft²
2 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.

$715K–$759K
4 units
$775K–$792K
2 units
$816K–$857K
10 units
$859K–$884K
3 units
$914K–$951K
4 units
$953K–$997K
4 units
$1M–$1M
1 unit
$1.1M–$1.1M
2 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.

Floors 1–2
$1005/ft²
Floor 3
$1038/ft²
Floor 4
$996/ft²
Floor 5
$911/ft²
Floor 6
$969/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 ·01
$1034/ft²
Line ·02
$1013/ft²
Line ·05
$1010/ft²
Line ·06
$973/ft²
Line ·03
$965/ft²
Line ·04
$924/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.27%
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.15.5 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.0%
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.$822,430
Median tax billThe middle annual property tax bill among the building's units.$8,099
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 504Mar 11, 2025$995,000Unit 601Dec 4, 2024$1,079,000Unit 603Sep 30, 2024$1,060,000Unit 402Dec 20, 2021$730,000Unit 601Apr 30, 2020$907,500Unit 506Feb 28, 2020$745,500Unit 202Aug 19, 2019$667,000Unit 404Mar 29, 2019$995,000Unit 104Jun 8, 2018$649,000Unit 404Nov 7, 2016$799,000

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

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.37 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.74%
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.1 percent flood zone

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
CountySUFFOLK
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2023
Lot (acres)The size of the land the home sits on, from county records.0.02
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.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
Eliot K-8 SchoolA
Elementary · Grades PK–8 · 0.3 mi
H
Quincy Upper SchoolD+
High · Grades 6–12 · 1.2 mi

District: Boston School District

Neighborhood · ZIP 02109These 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.151
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.77

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.42%
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.4,605
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16,022 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$144,286
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,889
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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.

142 Commercial St # 104
1 bd · 1 ba · 795 ft²
$775K
142 Commercial St # 201
1 bd · 1 ba · 780 ft²
$792K
142 Commercial St # 202
1 bd · 1 ba · 860 ft²
$822K
142 Commercial St # 203
1 bd · 1 ba · 865 ft²
$884K
142 Commercial St # 204
2 bd · 1 ba · 1,160 ft²
$1.1M
142 Commercial St # 205
1 bd · 1 ba · 795 ft²
$914K
142 Commercial St # 206
1 bd · 1 ba · 875 ft²
$859K
142 Commercial St # 301
1 bd · 1 ba · 780 ft²
$984K
142 Commercial St # 302
1 bd · 1 ba · 860 ft²
$951K
142 Commercial St # 303
1 bd · 1 ba · 865 ft²
$953K
142 Commercial St # 304
2 bd · 1.5 ba · 1,160 ft²
$975K
142 Commercial St # 305
1 bd · 1 ba · 795 ft²
$753K
142 Commercial St # 306
1 bd · 1 ba · 875 ft²
$848K
142 Commercial St # 401
1 bd · 1 ba · 780 ft²
$826K
142 Commercial St # 402
1 bd · 1 ba · 860 ft²
$877K
142 Commercial St # 403
1 bd · 1 ba · 875 ft²
$845K
142 Commercial St # 404
2 bd · 1 ba · 1,160 ft²
$1.1M
142 Commercial St # 405
1 bd · 1 ba · 795 ft²
$816K
142 Commercial St # 406
1 bd · 1 ba · 875 ft²
$841K
142 Commercial St # 501
1 bd · 1 ba · 784 ft²
$724K
142 Commercial St # 502
1 bd · 1 ba · 857 ft²
$840K
142 Commercial St # 503
1 bd · 1 ba · 875 ft²
$759K
142 Commercial St # 504
2 bd · 1 ba · 1,160 ft²
$948K
142 Commercial St # 505
1 bd · 1 ba · 795 ft²
$715K
142 Commercial St # 506
1 bd · 1 ba · 875 ft²
$857K
142 Commercial St # 601
2 bd · 1 ba · 1,120 ft²
$1M
142 Commercial St # 602
1 bd · 1.5 ba · 855 ft²
$857K
142 Commercial St # 603
2 bd · 1 ba · 1,150 ft²
$997K
142 Commercial St # 604
1 bd · 1 ba · 795 ft²
$824K
142 Commercial St # 605
1 bd · 1 ba · 915 ft²
$942K

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

About 142 Commercial St

How many units are in 142 Commercial St, Boston, MA?

142 Commercial St, Boston, MA has 30 residential units across 6 floors, built in 1856, according to county assessor records.

What is a unit at 142 Commercial St, Boston, MA worth?

The median TopHap Estimate across the 30 units at 142 Commercial St, Boston, MA is $857,126. That works out to $977 per square foot. Units run from 780 to 1,160 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 142 Commercial St, Boston, MA expensive for Boston?

Units at 142 Commercial St, Boston, MA carry a median of $977 per square foot, 3% above the Boston median of $947 per square foot.

How often do units sell at 142 Commercial St, Boston, MA?

0 units at 142 Commercial St, Boston, MA sold in the last 12 months, out of 70 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 142 Commercial St, Boston, MA appreciated?

Across 42 repeat sales of the same unit, 142 Commercial St, Boston, MA returned a median 5.4% 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 5.7 years.

What floor plans does 142 Commercial St, Boston, MA have?

The most common plan at 142 Commercial St, Boston, MA is a 1-bedroom of 795 square feet, repeated 6 times, with a median estimate of $795,348. TopHap identifies 6 recurring plans in the building.

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