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CondominiumResidential
$642,478$1,376 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

20 MOON ST APT 4

BOSTON, MA 02113
Building report
1
Beds
1
Baths
467 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1899
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$642K
$617K low$667K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,710 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$493,100 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$493,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$493,100

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.41
35
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.
53
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
84
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.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountySuffolk
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2019
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Eliot K-8 SchoolA-
Elementary · Grades PK–8 · 0.1 mi
H
Charlestown High SchoolD+
High · Grades 9–12 · 1.2 mi

District: Boston School District

Neighborhood · ZIP 02113These 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.139
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 100.74

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.50%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.6,619
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.67,574 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,491
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$127,316
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%

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Data 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

20 Moon St Apt 4 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.

  • Worth less than 74% of homes in North End
  • Costs more per square foot than 95% of homes in Boston 02113
  • Smaller than 98% of homes in Suffolk County
  • Older than 82% of homes in Suffolk County

What homes are worth in Boston 02113

Each bar is how many homes fall in that price range. The marker is this home.

This home
$392K$1.8M

This home is worth more than 45% of homes in Boston 02113.

How it measures up in Boston 02113

The dot is this home. The mark in the middle is the typical home in Boston 02113.

Estimated value$642,478
CheaperTypical $665,501Pricier

Pricier than 45% of homes nearby

Price per ft²$1376
CheaperTypical $1056Pricier

Pricier than 95% of homes nearby

Living area467 ft²
SmallerTypical 779 ft²Bigger

Bigger than 14% of homes nearby

Year built1899
OlderTypical 1900Newer

Newer than 35% of homes nearby

How 20 Moon St Apt 4 ranks against every home in each area.
MeasureThis homeNorth EndBoston 02113Suffolk County
Estimated valuepricier than$642,47826% of homes45% of homes41% of homes
Price per ft²pricier than$137688% of homes95% of homes92% of homes
Living areabigger than467 ft²9% of homes14% of homes2% of homes
Year builtnewer than189938% of homes35% of homes18% of homes

About 20 Moon St Apt 4

How much is 20 Moon St Apt 4, Boston, MA worth?

The TopHap Estimate for 20 Moon St Apt 4, Boston, MA is $642,478 as of Aug 30, 2026. The likely range is $617,476 to $667,480. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Moon St Apt 4, Boston, MA last sell?

20 Moon St Apt 4, Boston, MA last sold on Sep 26, 2025, according to the county's recorded deed.

How big is 20 Moon St Apt 4, Boston, MA?

20 Moon St Apt 4, Boston, MA has 1 bedrooms, 1 bathrooms and 467 square feet of living space.

When was 20 Moon St Apt 4, Boston, MA built?

20 Moon St Apt 4, Boston, MA was built in 1899, making it 127 years old. The building has 1 story.

What schools serve 20 Moon St Apt 4, Boston, MA?

20 Moon St Apt 4, Boston, MA is assigned to Eliot K-8 School (elementary), rated A-; Charlestown High School (high), rated D+. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Moon St Apt 4, Boston, MA compare to other homes in Boston 02113?

Among the 1,750 homes in Boston 02113, it is worth more than 45% of them ($642,478 against a typical $665,501), its price per square foot is higher than 95% of them ($1376 against a typical $1056), it is bigger than 14% of them (467 ft² against a typical 779 ft²) and it is newer than 35% of them (1899 against a typical 1900). Measured against all of Suffolk County, it is worth more than 41% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 20 Moon St Apt 4, Boston, MA?

The 2025 property tax bill for 20 Moon St Apt 4, Boston, MA was $5,710. The county assessed it at $493,100.

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Assigned schools

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