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CondominiumResidential
$529,886$694 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

20 PORTER ST

JAMAICA PLAIN, MA 02130
Building report
2
Beds
1
Baths
764 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.
2,332 ft²
Lot SizeThe size of the land the home sits on, from county records.
1905
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

$530K
$485K low$575K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,497 (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.$474,700 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$474,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$460,275

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.44
39
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.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
88
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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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.2018
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Ellis Mendell Elementary SchoolB-
Elementary · Grades PK–5 · 0.1 mi
H
Greater Egleston Community High School
High · Grades 9–12 · 0.2 mi
M
Rafael Hernandez K-8 SchoolB-
Middle · Grades PK–8 · 0.3 mi

District: Boston School District

Neighborhood · ZIP 02130These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.37,863
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,409 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,234
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,638
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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 Porter St 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 85% of homes in Jamaica Plain 02130
  • Costs more per square foot than 68% of homes in Jamaica Plain 02130
  • Smaller than 91% of homes in Jamaica Plain 02130

What homes are worth in Jamaica Plain 02130

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

This home
$391K$2.1M

This home is worth more than 15% of homes in Jamaica Plain 02130.

How it measures up in Jamaica Plain 02130

The dot is this home. The mark in the middle is the typical home in Jamaica Plain 02130.

Estimated value$529,886
CheaperTypical $790,760Pricier

Pricier than 15% of homes nearby

Price per ft²$694
CheaperTypical $646Pricier

Pricier than 68% of homes nearby

Living area764 ft²
SmallerTypical 1,445 ft²Bigger

Bigger than 9% of homes nearby

Lot size2,332 ft²
SmallerTypical 2,047 ft²Bigger

Bigger than 53% of homes nearby

Year built1905
OlderTypical 1910Newer

Newer than 41% of homes nearby

How 20 Porter St ranks against every home in each area.
MeasureThis homeJamaica Plain 02130Suffolk County
Estimated valuepricier than$529,88615% of homes22% of homes
Price per ft²pricier than$69468% of homes58% of homes
Living areabigger than764 ft²9% of homes15% of homes
Lot sizebigger than2,332 ft²53% of homes48% of homes
Year builtnewer than190541% of homes38% of homes

About 20 Porter St

How much is 20 Porter St, Jamaica Plain, MA worth?

The TopHap Estimate for 20 Porter St, Jamaica Plain, MA is $529,886 as of Sep 24, 2026. The likely range is $484,731 to $575,041. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Porter St, Jamaica Plain, MA last sell?

20 Porter St, Jamaica Plain, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20 Porter St, Jamaica Plain, MA?

20 Porter St, Jamaica Plain, MA has 2 bedrooms, 1 bathrooms and 764 square feet of living space.

When was 20 Porter St, Jamaica Plain, MA built?

20 Porter St, Jamaica Plain, MA was built in 1905, making it 121 years old. The building has 1 story.

What schools serve 20 Porter St, Jamaica Plain, MA?

20 Porter St, Jamaica Plain, MA is assigned to Ellis Mendell Elementary School (elementary), rated B-; Greater Egleston Community High School (high); Rafael Hernandez K-8 School (middle), rated B-. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Porter St, Jamaica Plain, MA compare to other homes in Jamaica Plain 02130?

Among the 9,401 homes in Jamaica Plain 02130, it is worth more than 15% of them ($529,886 against a typical $790,760), its price per square foot is higher than 68% of them ($694 against a typical $646), it is bigger than 9% of them (764 ft² against a typical 1,445 ft²), its lot is bigger than 53% of them (2,332 ft² against a typical 2,047 ft²) and it is newer than 41% of them (1905 against a typical 1910). Measured against all of Suffolk County, it is worth more than 22% 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 Porter St, Jamaica Plain, MA?

The 2025 property tax bill for 20 Porter St, Jamaica Plain, MA was $5,497. The county assessed it at $474,700.

More homes on Porter St

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Assigned schools

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