CondominiumResidential
18 Congress Ave
CHELSEA, MA 02150
2015
Year BuiltThe year the home was originally built, according to county records.
Built 20154 units1,220–1,220 ft²
$2M
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.
$489K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$401
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
-9.1%vs the Chelsea ZIP median sale $/ft² ($441)
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.
5 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.
3 bed
4 units$489K · $401/ft²
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.
3 bd · 2 ba · 1,220 ft²
4 units$489K · $401/ft²
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.
$466K–$476K
2 units
$502K–$502K
1 unit
$562K–$562K
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.100%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.25%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.2.5 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.75%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$502,481
Median tax billThe middle annual property tax bill among the building's units.$5,509
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.
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
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountySUFFOLK
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
MHE
Eugene Wright Science and Technology AcademyD-
Middle · Grades 5–8 · 0.2 mi
Chelsea High SchoolD-
High · Grades 9–12 · 0.7 mi
William a Berkowitz Elementary SchoolC+
Elementary · Grades 1–4 · 1.1 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.
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 18 Congress Ave
How many units are in 18 Congress Ave, Chelsea, MA?
18 Congress Ave, Chelsea, MA has 4 residential units across built in 2015, according to county assessor records.
What is a unit at 18 Congress Ave, Chelsea, MA worth?
The median TopHap Estimate across the 4 units at 18 Congress Ave, Chelsea, MA is $488,934. That works out to $401 per square foot. Units run from 1,220 to 1,220 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 18 Congress Ave, Chelsea, MA expensive for Chelsea?
Units at 18 Congress Ave, Chelsea, MA carry a median of $401 per square foot, 9% below the Chelsea median of $441 per square foot.
How often do units sell at 18 Congress Ave, Chelsea, MA?
0 units at 18 Congress Ave, Chelsea, MA sold in the last 12 months, out of 5 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.
What floor plans does 18 Congress Ave, Chelsea, MA have?
The most common plan at 18 Congress Ave, Chelsea, MA is a 3-bedroom of 1,220 square feet, repeated 4 times, with a median estimate of $488,934. TopHap identifies 1 recurring plans in the building.
More homes on Congress Ave
- 250 Congress Ave # 40$474K2 bd · 1.5 ba · 1,078 ft² · Sold $475K · Sep 2026
- 250 Congress Ave # 29$496K2 bd · 3 ba · 1,022 ft² · Sold $490K · Sep 2025
- 250 Congress Ave # 9$352K2 bd · 1.5 ba · 1,078 ft² · Sold $347K · Aug 2025
- 18 Congress Ave # 4$562K3 bd · 2 ba · 1,220 ft² · Sold $560K · May 2025
- 187 Congress Ave6 bd · 2 ba · 2,830 ft² · Sold $800K · May 2025
- 250 Congress Ave # 10$468K2 bd · 1.5 ba · 1,155 ft² · Sold $455K · Sep 2024
- 250 Congress Ave # 20$408K2 bd · 2 ba · 1,155 ft² · Sold $380K · Sep 2024
- 250 Congress Ave # 38$486K2 bd · 2.5 ba · 1,078 ft² · Sold $460K · Mar 2024
- 250 Congress Ave # 17$430K2 bd · 1.5 ba · 1,078 ft² · Sold $400K · Jul 2023
- 18 Congress Ave # 3$466K3 bd · 2 ba · 1,220 ft² · Sold $489K · Jul 2023
- 250 Congress Ave # 42$456K2 bd · 2 ba · 1,022 ft² · Sold $470K · Apr 2023
- 250 Congress Ave # 33$486K2 bd · 1.5 ba · 1,095 ft² · Sold $430K · Apr 2023
Closest homes
- 18 Congress Ave$562K0 ft · 3 bd · 2 ba · 1,220 ft² · Sold $560K · May 2025
- 18 Congress Ave # 2$476K0 ft · 3 bd · 2 ba · 1,220 ft² · Sold $500K · Mar 2023
- 18 Congress Ave$466K0 ft · 3 bd · 2 ba · 1,220 ft² · Sold $489K · Jul 2023
- 22 Congress Ave # 2$587K28 ft · 4 bd · 3 ba · 1,621 ft² · Sold $450K · Jul 2017
- 22 Congress Ave$522K28 ft · 3 bd · 2 ba · 1,289 ft² · Sold $475K · Dec 2022
- 24 Congress Ave49 ft · 8 bd · 3 ba · 2,790 ft² · Sold $820K · Mar 2020
- 26 Congress Ave69 ft · 6 bd · 3 ba · 2,859 ft² · Sold $200K · Sep 2009
- 127 Division St90 ft · 6 bd · 3 ba · 2,268 ft² · Sold $13K · Jul 1999
More homes in Chelsea 02150
- 26 Englewood Ave6 bd · 2 ba · 2,275 ft² · Sold $670K · Oct 2026
- 86 Tudor St$400K2 bd · 1 ba · 1,358 ft² · Sold $392K · Oct 2026
- 15 Lambert Ave$500K3 bd · 1 ba · 1,804 ft² · Sold $500K · Oct 2026
- 93 Parker St$620K3 bd · 1.5 ba · 1,024 ft² · Sold $630K · Oct 2026
- 200 Captains Row$500K2 bd · 2 ba · 1,090 ft² · Sold $480K · Oct 2026
- 80 Cook Ave$581K3 bd · 2.5 ba · 1,382 ft² · Sold $680K · Oct 2026
- 175 Cottage St$395K2 bd · 2 ba · 1,162 ft² · Sold $385K · Oct 2026
- 7 Carmel St6 bd · 3 ba · 3,276 ft² · Sold $995K · Oct 2026
- 16 Reynolds Ave$398K1 bd · 1 ba · 929 ft² · Sold $395K · Sep 2026
- 241 Webster Ave$400K3 bd · 1 ba · 1,099 ft² · Sold $387K · Sep 2026
- 49 Breakwater Dr$697K3 bd · 2.5 ba · 1,504 ft² · Sold $747K · Sep 2026
- 92 Pearl St$367K1 bd · 1 ba · 670 ft² · Sold $395K · Sep 2026
Assigned schools
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