12 Washington St
+16.4%vs the Charlestown ZIP median sale $/ft² ($844)
Sales Performance
20 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.
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.
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.
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 12 Washington St
How many units are in 12 Washington St, Charlestown, MA?
12 Washington St, Charlestown, MA has 4 residential units across built in 1899, according to county assessor records.
What is a unit at 12 Washington St, Charlestown, MA worth?
The median TopHap Estimate across the 4 units at 12 Washington St, Charlestown, MA is $640,681. That works out to $982 per square foot. Units run from 622 to 870 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 12 Washington St, Charlestown, MA expensive for Charlestown?
Units at 12 Washington St, Charlestown, MA carry a median of $982 per square foot, 16% above the Charlestown median of $844 per square foot.
How often do units sell at 12 Washington St, Charlestown, MA?
0 units at 12 Washington St, Charlestown, MA sold in the last 12 months, out of 20 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.
Have units at 12 Washington St, Charlestown, MA appreciated?
Across 15 repeat sales of the same unit, 12 Washington St, Charlestown, MA returned a median 5.1% 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 7.7 years.
What floor plans does 12 Washington St, Charlestown, MA have?
The most common plan at 12 Washington St, Charlestown, MA is a 2-bedroom of 622 square feet, repeated 2 times, with a median estimate of $610,865. TopHap identifies 1 recurring plans in the building.
More homes on Washington St
- 72 Washington St # 1$1.8M3 bd · 2.5 ba · 2,102 ft² · Sold $1.8M · Jul 2026
- 34 Washington St # 2b$621K1 bd · 1 ba · 590 ft² · Sold $615K · May 2026
- 2 Washington St$1.7M3 bd · 1.5 ba · 2,127 ft² · Sold $1.7M · Jan 2026
- 59 1/2 Washington St5 bd · 2 ba · 3,030 ft² · Sold $1.6M · Nov 2025
- 90 Washington St # A$872K2 bd · 2 ba · 995 ft² · Sold $835K · Jul 2025
- 34 Washington St # 3b$368K1 bd · 1 ba · 350 ft² · Sold $350K · May 2025
- 46 Washington St # 2$988K2 bd · 2.5 ba · 946 ft² · Sold $925K · Dec 2024
- 74 Washington St # 2$1.4M2 bd · 2.5 ba · 1,435 ft² · Sold $1.3M · Jun 2024
- 30 Washington St # 1a$940K2 bd · 1.5 ba · 1,433 ft² · Sold $845K · Jun 2023
- 31 Washington St # 2$1.7M3 bd · 2 ba · 1,733 ft² · Sold $1.5M · Jun 2023
- 42 Washington St # 5$791K1 bd · 1 ba · 877 ft² · Sold $680K · Aug 2022
- 36 Washington St # 2a$576K1 bd · 1 ba · 550 ft² · Sold $517K · Nov 2021
Closest homes
- 12 Washington St$673K0 ft · 2 bd · 1 ba · 672 ft² · Sold $610K · Apr 2021
- 12 Washington St$659K0 ft · 2 bd · 1 ba · 870 ft² · Sold $540K · Jun 2016
- 12 Washington St$623K0 ft · 2 bd · 1 ba · 622 ft² · Sold $570K · Oct 2019
- 10 Washington St29 ft · 2 bd · 1 ba · 630 ft² · Sold $502K · Dec 2019
- 10 Washington St$1.2M29 ft · 3 bd · 1 ba · 1,339 ft² · Sold $556K · Aug 2003
- 10 Washington St$653K29 ft · 1 bd · 1 ba · 565 ft² · Sold $469K · Apr 2014
- 55 Rutherford Ave41 ft · 5,871 ft² · Sold $1.3M · May 2007
- 45 Rutherford Ave$1.7M54 ft · 4 bd · 3 ba · 1,700 ft² · Sold $1.2M · May 2023
More homes in Charlestown 02129
- 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
- 85 School St6 bd · 3 ba · 3,294 ft² · Sold $893K · Aug 2026
Assigned schools
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