42 8th St
-4.5%vs the Charlestown ZIP median sale $/ft² ($844)
Sales Performance
800 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.
Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.
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 42 8th St
How many units are in 42 8th St, Charlestown, MA?
42 8th St, Charlestown, MA has 367 residential units across 55 floors, built in 1899, according to county assessor records.
What is a unit at 42 8th St, Charlestown, MA worth?
The median TopHap Estimate across the 367 units at 42 8th St, Charlestown, MA is $656,476. That works out to $806 per square foot. Units run from 430 to 1,907 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 42 8th St, Charlestown, MA expensive for Charlestown?
Units at 42 8th St, Charlestown, MA carry a median of $806 per square foot, 4% below the Charlestown median of $844 per square foot.
How often do units sell at 42 8th St, Charlestown, MA?
12 units at 42 8th St, Charlestown, MA sold in the last 12 months, out of 800 recorded arms-length sales all time. That is a turnover rate of 3.3% of the building per year. The median sale over that period was $544K.
Have units at 42 8th St, Charlestown, MA appreciated?
Across 431 repeat sales of the same unit, 42 8th St, Charlestown, MA returned a median 2.0% 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 6.5 years.
What floor plans does 42 8th St, Charlestown, MA have?
The most common plan at 42 8th St, Charlestown, MA is a 1-bedroom of 681 square feet, repeated 7 times, with a median estimate of $558,997. TopHap identifies 14 recurring plans in the building.
More homes on 8th St
- 42 8th St # 2511$799K2 bd · 2 ba · 1,013 ft² · Sold $775K · Sep 2026
- 42 8th St # 5525$776K1 bd · 1 ba · 971 ft² · Sold $775K · Aug 2026
- 197 8th St # Ph201$2.4M2 bd · 2.5 ba · 2,049 ft² · Sold $2.4M · Jul 2026
- 197 8th St # 901$874K1 bd · 1 ba · 747 ft² · Sold $873K · Jul 2026
- 42 8th St # 2307$544K1 bd · 1 ba · 686 ft² · Sold $540K · Jul 2026
- 197 8th St # Ph19$1.7M2 bd · 2 ba · 1,445 ft² · Sold $1.7M · Jun 2026
- 42 8th St # 2509$731K2 bd · 2 ba · 1,130 ft² · Sold $729K · Jun 2026
- 197 8th St # 307$1.8M2 bd · 2.5 ba · 1,749 ft² · Sold $1.8M · Jun 2026
- 42 8th St # 2306$528K1 bd · 1 ba · 713 ft² · Sold $526K · May 2026
- 42 8th St # 5521$477K1 bd · 1 ba · 579 ft² · Sold $475K · Apr 2026
- 42 8th St # 2514$954K2 bd · 2 ba · 1,007 ft² · Sold $949K · Apr 2026
- 42 8th St # 1315$765K2 bd · 2 ba · 945 ft² · Sold $760K · Mar 2026
Closest homes
- 42 8th St$775K0 ft · 1 bd · 1.5 ba · 922 ft² · Sold Dec 2012
- 42 8th St$757K0 ft · 2 bd · 2 ba · 938 ft² · Sold $530K · Oct 2007
- 42 8th St$570K0 ft · 1 bd · 1 ba · 637 ft² · Sold $419K · Oct 2014
- 42 8th St$524K0 ft · 1 bd · 1 ba · 660 ft² · Sold $483K · Jun 2018
- 42 8th St$525K0 ft · 1 bd · 1 ba · 645 ft² · Sold $319K · Aug 2009
- 42 8th St$565K0 ft · 1 bd · 1 ba · 673 ft² · Sold $520K · Sep 2021
- 42 8th St$562K0 ft · 1 bd · 1 ba · 707 ft² · Sold $482K · Feb 2021
- 42 8th St$910K0 ft · 2 bd · 2 ba · 1,290 ft² · Sold $750K · Nov 2023
More homes in Charlestown 02129
- 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
- 92 Green St$550K1 bd · 1 ba · 702 ft² · Sold $550K · Sep 2026
Assigned schools
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