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CondominiumResidential

250 Congress Ave

CHELSEA, MA 02150
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
Built 198747 units1,022–1,155 ft²
$20M
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.
$438K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$402
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+10.1%vs the Chelsea ZIP median sale $/ft² ($365)

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.
+2.8%per yeartypical hold 7.7 yrsfrom 106 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
19871993199820032007201320192025
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
19871993199820032007201320192025

158 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.
$352K$400K$448K$496K1,022 ft²1,049 ft²1,075 ft²1,102 ft²1,128 ft²1,155 ft²
2 bd
2 bed
47 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.
2 bd · 2 ba · 1,155 ft²
9 units
2 bd · 1.5 ba · 1,078 ft²
8 units
2 bd · 4 ba · 1,022 ft²
6 units
2 bd · 2 ba · 1,078 ft²
6 units
2 bd · 3 ba · 1,022 ft²
4 units
2 bd · 4 ba · 1,078 ft²
3 units
2 bd · 3 ba · 1,078 ft²
2 units
2 bd · 4 ba · 1,095 ft²
2 units
2 bd · 3 ba · 1,155 ft²
2 units
One-off layouts
5 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.

$352K–$352K
1 unit
$391K–$391K
1 unit
$411K–$424K
9 units
$425K–$441K
19 units
$444K–$456K
8 units
$464K–$474K
4 units
$479K–$496K
3 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.94%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.2%
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
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.50%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$431,039
Median tax billThe middle annual property tax bill among the building's units.$4,647
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 29Sep 23, 2025$490,000Unit 9Aug 25, 2025$347,000Unit 10Sep 27, 2024$455,000Unit 20Sep 19, 2024$380,000Unit 38Mar 8, 2024$460,000Unit 17Jul 31, 2023$400,000Unit 42Apr 25, 2023$470,000Unit 33Apr 21, 2023$430,000Unit 23Dec 23, 2021$390,000Unit 22May 21, 2021$406,000

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

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.44
51
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
0
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
52
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
85
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.48 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
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

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

M
Eugene Wright Science and Technology AcademyC-
Middle · Grades 5–8 · 0.6 mi
E
William a Berkowitz Elementary SchoolB
Elementary · Grades 1–4 · 1.0 mi
H
Chelsea High SchoolD-
High · Grades 9–12 · 1.0 mi

District: Chelsea School District

Neighborhood · ZIP 02150These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
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.40,106
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16,087 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,192
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,537
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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.

250 Congress Ave # 1
2 bd · 1.5 ba · 1,078 ft²
$421K
250 Congress Ave
2 bd · 1.5 ba · 1,155 ft²
$438K
250 Congress Ave # 3
2 bd · 1.5 ba · 1,078 ft²
$456K
250 Congress Ave # 4
2 bd · 2.5 ba · 1,155 ft²
$451K
250 Congress Ave Apt 5
2 bd · 2 ba · 1,078 ft²
$440K
250 Congress Ave # 6
2 bd · 1.5 ba · 1,078 ft²
$435K
250 Congress Ave Apt 7
2 bd · 3 ba · 1,078 ft²
$434K
250 Congress Ave Apt 8
2 bd · 2 ba · 1,155 ft²
$436K
250 Congress Ave # 9
2 bd · 1.5 ba · 1,078 ft²
$352K
250 Congress Ave # 10
2 bd · 1.5 ba · 1,155 ft²
$468K
250 Congress Ave Apt 11
2 bd · 2 ba · 1,078 ft²
$423K
250 Congress Ave # 12
2 bd · 1.5 ba · 1,078 ft²
$434K
250 Congress Ave Apt 13
2 bd · 2 ba · 1,155 ft²
$435K
250 Congress Ave # 14
2 bd · 1.5 ba · 1,078 ft²
$425K
250 Congress Ave Apt 15
2 bd · 2 ba · 1,155 ft²
$449K
250 Congress Ave # 16
2 bd · 1.5 ba · 1,078 ft²
250 Congress Ave # 17
2 bd · 1.5 ba · 1,078 ft²
$438K
250 Congress Ave Apt 18
2 bd · 2 ba · 1,155 ft²
$452K
250 Congress Ave Apt 19
2 bd · 2 ba · 1,078 ft²
$441K
250 Congress Ave Apt 20
2 bd · 2 ba · 1,155 ft²
$391K
250 Congress Ave Apt 21
2 bd · 2 ba · 1,155 ft²
$464K
250 Congress Ave # 22
2 bd · 3 ba · 1,078 ft²
250 Congress Ave # 23
2 bd · 3 ba · 1,155 ft²
$448K
250 Congress Ave Apt 24
2 bd · 3 ba · 1,022 ft²
$427K
250 Congress Ave Apt 25
2 bd · 4 ba · 1,095 ft²
$439K
250 Congress Ave Apt 26
2 bd · 4 ba · 1,022 ft²
$427K
250 Congress Ave Apt 27
2 bd · 4 ba · 1,022 ft²
$419K
250 Congress Ave Apt 28
2 bd · 4 ba · 1,022 ft²
$436K
250 Congress Ave # 29
2 bd · 3 ba · 1,022 ft²
$496K
250 Congress Ave Apt 30
2 bd · 4 ba · 1,095 ft²
$482K
250 Congress Ave # 31
2 bd · 3 ba · 1,022 ft²
$441K
250 Congress Ave Apt 32
2 bd · 3 ba · 1,022 ft²
$411K
250 Congress Ave # 33
2 bd · 1.5 ba · 1,095 ft²
$440K
250 Congress Ave Apt 34
2 bd · 4 ba · 1,022 ft²
$479K
250 Congress Ave # 35
2 bd · 3 ba · 1,095 ft²
$420K
250 Congress Ave Apt 36
2 bd · 4 ba · 1,022 ft²
$414K
250 Congress Ave Apt 37
2 bd · 4 ba · 1,078 ft²
$430K
250 Congress Ave # 38
2 bd · 2.5 ba · 1,078 ft²
$472K
250 Congress Ave Apt 39
2 bd · 3 ba · 1,155 ft²
$452K
250 Congress Ave # 40
2 bd · 1.5 ba · 1,078 ft²
$474K
250 Congress Ave Apt 41
2 bd · 2 ba · 1,155 ft²
$454K
250 Congress Ave Apt 42
2 bd · 3 ba · 1,022 ft²
$439K
250 Congress Ave # 43
2 bd · 2 ba · 1,078 ft²
$420K
250 Congress Ave Apt 44
2 bd · 2 ba · 1,155 ft²
$421K
250 Congress Ave Apt 45
2 bd · 4 ba · 1,078 ft²
$444K
250 Congress Ave # 46
2 bd · 3 ba · 1,155 ft²
$424K
250 Congress Ave Apt 47
2 bd · 2 ba · 1,078 ft²
$430K

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

About 250 Congress Ave

How many units are in 250 Congress Ave, Chelsea, MA?

250 Congress Ave, Chelsea, MA has 47 residential units across built in 1987, according to county assessor records.

What is a unit at 250 Congress Ave, Chelsea, MA worth?

The median TopHap Estimate across the 47 units at 250 Congress Ave, Chelsea, MA is $438,320. That works out to $402 per square foot. Units run from 1,022 to 1,155 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 250 Congress Ave, Chelsea, MA expensive for Chelsea?

Units at 250 Congress Ave, Chelsea, MA carry a median of $402 per square foot, 10% above the Chelsea median of $365 per square foot.

How often do units sell at 250 Congress Ave, Chelsea, MA?

0 units at 250 Congress Ave, Chelsea, MA sold in the last 12 months, out of 158 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 250 Congress Ave, Chelsea, MA appreciated?

Across 106 repeat sales of the same unit, 250 Congress Ave, Chelsea, MA returned a median 2.8% 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 7.7 years.

What floor plans does 250 Congress Ave, Chelsea, MA have?

The most common plan at 250 Congress Ave, Chelsea, MA is a 2-bedroom of 1,155 square feet, repeated 9 times, with a median estimate of $449,197. TopHap identifies 9 recurring plans in the building.

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