State Owned (Exempt)Public Works
21-R CHARLESTOWN AVE
CAMBRIDGE, MA 02142
0
Baths
483 ft²
Lot SizeThe size of the land the home sits on, from county records.
Tax & Assessment
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$16,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$16,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$16,900
Climate Risk
Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.48
64
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
89
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.33 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.71%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.State Owned (Exempt)
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.0.01
HeatingThe type of heating system in the home.None
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EMH
Kennedy-LongfellowC+
Elementary · Grades PK–5 · 0.5 mi
Cambridge Street Upper SchoolA-
Middle · Grades 6–8 · 0.7 mi
Cambridge Rindge and LatinA-
High · Grades 9–12 · 1.7 mi
District: Cambridge School District
Neighborhood · ZIP 02142These 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.148
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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.5,172
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,765 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$127,636
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,607
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%
Owner Tools
Do you own this home?
Claim this homeData by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
21-R Charlestown Ave measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Among the smallest lots in East Cambridge
How it measures up in Cambridge 02142
The dot is this home. The mark in the middle is the typical home in Cambridge 02142.
Lot size483 ft²
SmallerTypical 1.4 acBigger
Smaller than almost all homes nearby
| Measure | This home | East Cambridge | Cambridge 02142 | Middlesex County |
|---|---|---|---|---|
| Lot sizebigger than | 483 ft² | almost no homes | almost no homes | almost no homes |
Closest homes
- 8 Museum Way$1.4M266 ft · 2 bd · 2 ba · 1,249 ft² · Sold $863K · Sep 2012
- 8 Museum Way$901K266 ft · 2 bd · 2 ba · 1,067 ft² · Sold $745K · May 2017
- 8 Museum Way$679K266 ft · 1 bd · 1 ba · 663 ft² · Sold $580K · May 2020
- 8 Museum Way$613K266 ft · 1 bd · 1 ba · 663 ft² · Sold $388K · Jun 2009
- 8 Museum Way$1.5M266 ft · 2 bd · 2 ba · 1,264 ft² · Sold $830K · Aug 2009
- 8 Museum Way$1.1M266 ft · 2 bd · 2 ba · 1,046 ft² · Sold $815K · Jul 2016
- 8 Museum Way$1M266 ft · 2 bd · 2 ba · 1,067 ft² · Sold $579K · Dec 2005
- 8 Museum Way$1.1M266 ft · 2 bd · 2 ba · 1,050 ft² · Sold $625K · Feb 2005
More homes in Cambridge 02142
- 75 Cambridge Pkwy$2M1 bd · 2 ba · 1,330 ft² · Sold $2M · Jul 2026
- 303 3rd St$1.3M2 bd · 2 ba · 1,340 ft² · Sold $1.3M · Jun 2026
- 10 Rogers St$999K2 bd · 2.5 ba · 1,461 ft² · Sold $998K · Jun 2026
- 75 Cambridge Pkwy$1.8M1 bd · 2.5 ba · 1,620 ft² · Sold $1.8M · May 2026
- 10 Rogers St$732K1 bd · 1 ba · 863 ft² · Sold $730K · May 2026
- 75 Cambridge Pkwy$1.8M2 bd · 2.5 ba · 1,620 ft² · Sold $1.8M · May 2026
- 75 Cambridge Pkwy$2.1M2 bd · 2.5 ba · 1,595 ft² · Sold $2.1M · Mar 2026
- 10 Rogers St$813K2 bd · 2.5 ba · 1,074 ft² · Sold $809K · Feb 2026
- 75 Cambridge Pkwy$3.3M2 bd · 2.5 ba · 2,150 ft² · Sold $5M · Jan 2026
- 10 Rogers St$855K2 bd · 2 ba · 1,157 ft² · Sold $850K · Jan 2026
- 75 Cambridge Pkwy$2.9M2 bd · 2.5 ba · 1,910 ft² · Sold $2.9M · Jan 2026
- 75 Cambridge Pkwy$2.4M2 bd · 2 ba · 1,325 ft² · Sold $2.4M · Jan 2026
Assigned schools
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