CondominiumResidential
21 Wall St
CHARLESTOWN, MA 02129
660 ft²
Lot SizeThe size of the land the home sits on, from county records.
2014
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 20143 units660–762 ft²
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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.
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Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
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Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
Sales Performance
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Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
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1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
2018201920212023
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
2018201920212023
4 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.
1 bed
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.100%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.5.0 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%
Median tax billThe middle annual property tax bill among the building's units.$6,418
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
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.01
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.
District: Boston School District
Neighborhood · ZIP 02129These 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.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.73
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.18,397
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,594 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$152,177
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$178,903
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.
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
More homes on Wall St
- 14 Wall St$904K2 bd · 1 ba · 1,443 ft² · Sold $890K · Nov 2025
- 11 Wall St$1.4M2 bd · 2.5 ba · 1,585 ft² · Sold $1.4M · Oct 2025
- 13 Wall St$1.5M2 bd · 2.5 ba · 1,443 ft² · Sold $1.5M · Aug 2023
- 17 Wall St$1.5M3 bd · 2 ba · 1,443 ft² · Sold $1.3M · Jun 2023
- 21 Wall St # 21 bd · 1 ba · 713 ft² · Sold $600K · Mar 2023
- 6 Wall St$2.1M3 bd · 2.5 ba · 2,170 ft² · Sold $1.7M · Jul 2022
- 2 Wall St$1.2M2 bd · 2 ba · 1,250 ft² · Sold $960K · Jul 2021
- 1 Wall St$1.4M2 bd · 2.5 ba · 1,418 ft² · Sold $1M · Oct 2020
- 3 Wall St$1.8M3 bd · 2.5 ba · 1,692 ft² · Sold $1.2M · Oct 2019
- 4 Wall St$1.3M2 bd · 2.5 ba · 1,145 ft² · Sold $920K · Apr 2019
- 21 Wall St # 31 bd · 1 ba · 762 ft² · Sold $617K · Feb 2018
- 19 Wall St$1.7M3 bd · 2 ba · 1,443 ft² · Sold $140K · Jun 2016
Closest homes
- 21 Wall St0 ft · 1 bd · 1 ba · 713 ft² · Sold $600K · Mar 2023
- 21 Wall St0 ft · 1 bd · 1 ba · 762 ft² · Sold $617K · Feb 2018
- 296 Bunker Hill St68 ft · 4 bd · 3 ba · 3,181 ft² · Sold $188K · Sep 1995
- 19 Wall St$1.7M78 ft · 3 bd · 2 ba · 1,443 ft² · Sold $140K · Jun 2016
- 298 Bunker Hill St$799K80 ft · 2 bd · 1 ba · 910 ft² · Sold $799K · Aug 2026
- 298 Bunker Hill St$721K80 ft · 2 bd · 1 ba · 947 ft² · Sold $695K · Jul 2025
- 298 Bunker Hill St$833K80 ft · 2 bd · 2 ba · 917 ft² · Sold $808K · Sep 2025
- 18 Wall St82 ft · 3 bd · 3 ba · 1,443 ft²
More homes in Charlestown 02129
- 377 Bunker Hill St$608K1 bd · 1 ba · 717 ft² · Sold $589K · Sep 2026
- 30 Monument Sq$825K1 bd · 1 ba · 885 ft² · Sold $825K · Sep 2026
- 21 Tremont St$635K1 bd · 1 ba · 681 ft² · Sold $575K · Sep 2026
- 92 Green St$550K1 bd · 1 ba · 702 ft² · Sold $550K · Sep 2026
- 30 Sackville St$829K2 bd · 2 ba · 937 ft² · Sold $855K · Sep 2026
- 27 Parker St$815K2 bd · 1.5 ba · 1,029 ft² · Sold $780K · Sep 2026
- 21 Prospect St$1M3 bd · 2 ba · 905 ft² · Sold $1M · Sep 2026
- 45 Baldwin St$656K1 bd · 1 ba · 769 ft² · Sold $550K · Aug 2026
- 5 Wallace Ct$4M4 bd · 5.5 ba · 3,233 ft² · Sold $3.9M · Aug 2026
- 106 13th St$699K2 bd · 2 ba · 978 ft² · Sold $695K · Aug 2026
- 89 School St$675K2 bd · 1 ba · 865 ft² · Sold $675K · Aug 2026
- 19 Salem St$650K1 bd · 1 ba · 745 ft² · Sold $635K · Aug 2026
Assigned schools
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