21 Chestnut St
+30.8%vs the Charlestown ZIP median sale $/ft² ($844)
Sales Performance
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.
Ownership & Financing
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.
Climate Risk
Scores 0–100; higher = greater projected risk.
Property Facts
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.
Index scale: 100 = US average (tick). Lower is better.
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 21 Chestnut St
How many units are in 21 Chestnut St, Charlestown, MA?
21 Chestnut St, Charlestown, MA has 2 residential units across built in 1875, according to county assessor records.
What is a unit at 21 Chestnut St, Charlestown, MA worth?
The median TopHap Estimate across the 2 units at 21 Chestnut St, Charlestown, MA is $1,497,371. That works out to $1104 per square foot. Units run from 1,168 to 1,537 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 21 Chestnut St, Charlestown, MA expensive for Charlestown?
Units at 21 Chestnut St, Charlestown, MA carry a median of $1104 per square foot, 31% above the Charlestown median of $844 per square foot.
How often do units sell at 21 Chestnut St, Charlestown, MA?
0 units at 21 Chestnut St, Charlestown, 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.
Have units at 21 Chestnut St, Charlestown, MA appreciated?
Across 3 repeat sales of the same unit, 21 Chestnut St, Charlestown, MA returned a median 7.1% 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 5.7 years.
More homes on Chestnut St
- 18 Chestnut St3 bd · 2 ba · 2,053 ft² · Sold $1.4M · May 2025
- 27 Chestnut St # 207$1.7M3 bd · 1.5 ba · 1,572 ft² · Sold $1.6M · May 2025
- 20 Chestnut St # 1$1.1M2 bd · 2 ba · 1,550 ft² · Sold $1M · Apr 2025
- 27 Chestnut St # 203$1.3M2 bd · 2 ba · 1,123 ft² · Sold $1.2M · Dec 2024
- 27 Chestnut St # 209$1.5M3 bd · 1.5 ba · 1,572 ft² · Sold $1.3M · Oct 2023
- 30 Chestnut St # 3$818K2 bd · 1 ba · 855 ft² · Sold $700K · Nov 2022
- 28 Chestnut St # 1$2.1M2 bd · 1.5 ba · 1,830 ft² · Sold $1.5M · Aug 2022
- 27 Chestnut St # 110$1.3M2 bd · 1.5 ba · 1,084 ft² · Sold $1.1M · Aug 2022
- 43 Chestnut St5 bd · 3.5 ba · 3,033 ft² · Sold $2.2M · Jul 2022
- 66 Chestnut St # 2$817K2 bd · 1 ba · 850 ft² · Sold $650K · Jun 2022
- 27 Chestnut St # 208$1.6M3 bd · 2.5 ba · 1,577 ft² · Sold $1.2M · Jun 2022
- 20 Chestnut St # 2$794K2 bd · 1 ba · 805 ft² · Sold $745K · Aug 2021
Closest homes
- 21 Chestnut St$1.3M0 ft · 2 bd · 1 ba · 1,168 ft² · Sold $766K · Jan 2017
- 19 Chestnut St$3.3M23 ft · 5 bd · 4 ba · 2,845 ft² · Sold $1.4M · Jul 2015
- 17 Chestnut St44 ft · 5 bd · 4.5 ba · 2,849 ft² · Sold Nov 2018
- 26 Adams St43 ft · 4 bd · 3.5 ba · 3,063 ft² · Sold $1.5M · Jun 2014
- 15 Chestnut St$2.6M71 ft · 4 bd · 3.5 ba · 2,277 ft² · Sold Aug 2015
- 28 Adams St69 ft · 4 bd · 3 ba · 2,625 ft² · Sold $835K · May 2004
- 20 Adams St Apt 1$1.2M89 ft · 2 bd · 2 ba · 1,227 ft² · Sold $555K · Oct 2002
- 20 Adams St$1.4M89 ft · 2 bd · 2 ba · 1,213 ft² · Sold $730K · Jul 2014
More homes in Charlestown 02129
- 42 8th St$799K2 bd · 2 ba · 1,013 ft² · Sold $775K · Sep 2026
- 284 Bunker Hill St$1.6M3 bd · 2 ba · 1,389 ft² · Sold $1.5M · Sep 2026
- 253 Main St$810K2 bd · 2 ba · 972 ft² · Sold $815K · Sep 2026
- 68 Baldwin St$900K2 bd · 1.5 ba · 1,047 ft² · Sold $910K · Sep 2026
- 11 Lawnwood Pl$2.5M4 bd · 4.5 ba · 2,180 ft² · Sold $2.3M · Sep 2026
- 30 Tremont St5 bd · 3 ba · 2,981 ft² · Sold $1.8M · Sep 2026
- 20 Lawrence St$810K2 bd · 2 ba · 1,155 ft² · Sold $810K · Sep 2026
- 16 Trenton St$699K2 bd · 1 ba · 703 ft² · Sold $690K · Sep 2026
- 106 13th St$569K1 bd · 1 ba · 733 ft² · Sold $569K · Sep 2026
- 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
Assigned schools
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