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Single Family ResidenceResidential
$405,646$401 / 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 89How 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
Last sold for $119,000 on Apr 27, 1987

40 PORTER ST

AVON, MA 02322
3
Beds
1
Baths
1,012 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$406K
$361K low$450K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$119,000 · Apr 27, 1987

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,541 (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.$415,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$202,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$213,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$358,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyNorfolk
Lot (acres)The size of the land the home sits on, from county records.0.17
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

Transaction History(4)

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.

M
Avon Middle High SchoolD+
Middle · Grades 6–12 · 0.3 mi
E
Ralph D ButlerC
Elementary · Grades PK–5 · 0.8 mi

District: Avon School District

Neighborhood · ZIP 02322These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.72

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
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.4,921
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,081 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,029
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,219
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.52%

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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

40 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 94% of homes in Norfolk County
  • Costs more per square foot than 66% of homes in Avon 02322
  • Smaller than 88% of homes in Norfolk County
  • Has a smaller lot than 93% of homes in Avon 02322

What homes are worth in Avon 02322

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

This home
$355K$995K

This home is worth more than 8% of homes in Avon 02322.

How it measures up in Avon 02322

The dot is this home. The mark in the middle is the typical home in Avon 02322.

Estimated value$405,646
CheaperTypical $522,801Pricier

Pricier than 8% of homes nearby

Price per ft²$401
CheaperTypical $367Pricier

Pricier than 66% of homes nearby

Living area1,012 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.18 ac
SmallerTypical 0.36 acBigger

Bigger than 7% of homes nearby

Year built1955
OlderTypical 1955Newer

Newer than 53% of homes nearby

How 40 Porter St ranks against every home in each area.
MeasureThis homeAvon 02322Norfolk County
Estimated valuepricier than$405,6468% of homes6% of homes
Price per ft²pricier than$40166% of homes35% of homes
Living areabigger than1,012 ft²16% of homes12% of homes
Lot sizebigger than0.18 ac7% of homes21% of homes
Year builtnewer than195553% of homes46% of homes

About 40 Porter St

How much is 40 Porter St, Avon, MA worth?

The TopHap Estimate for 40 Porter St, Avon, MA is $405,646 as of Aug 30, 2026. The likely range is $360,948 to $450,344. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Porter St, Avon, MA last sell?

40 Porter St, Avon, MA last sold on Apr 27, 1987 for $119,000, according to the county's recorded deed.

How big is 40 Porter St, Avon, MA?

40 Porter St, Avon, MA has 3 bedrooms, 1 bathrooms, 1,012 square feet of living space and a 0.17-acre lot.

When was 40 Porter St, Avon, MA built?

40 Porter St, Avon, MA was built in 1955, making it 71 years old. It is a ranch home. The building has 1 story.

What schools serve 40 Porter St, Avon, MA?

40 Porter St, Avon, MA is assigned to Avon Middle High School (middle), rated D+; Ralph D Butler (elementary), rated C. All sit in Avon School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Porter St, Avon, MA compare to other homes in Avon 02322?

Among the 1,489 homes in Avon 02322, it is worth more than 8% of them ($405,646 against a typical $522,801), its price per square foot is higher than 66% of them ($401 against a typical $367), it is bigger than 16% of them (1,012 ft² against a typical 1,440 ft²), its lot is bigger than 7% of them (0.18 ac against a typical 0.36 ac) and it is newer than 53% of them (1955 against a typical 1955). Measured against all of Norfolk County, it is worth more than 6% 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 40 Porter St, Avon, MA?

The 2025 property tax bill for 40 Porter St, Avon, MA was $5,541. The county assessed it at $415,400.

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