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Single Family ResidenceResidential
$2,101,242$1,614 / 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 95How 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
Last sold for $1,760,000 on Jun 15, 2022

20 WALNUT ST

NEEDHAM, MA 02492
4
Beds
2.5
Baths
1,302 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$2.1M
$2M low$2.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,760,000 · Jun 15, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,843 (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.$1,777,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$687,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,089,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,834,925

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyNORFOLK
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.1998
Lot (acres)The size of the land the home sits on, from county records.0.16
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
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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

Foreclosure Filings(2)

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

E
Newman Elementary SchoolA
Elementary · Grades PK–5 · 0.8 mi
M
Pollard Middle SchoolA+
Middle · Grades 7–8 · 0.8 mi
H
Needham High SchoolA+
High · Grades 9–12 · 0.8 mi

District: Needham School District

Neighborhood · ZIP 02492These 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.31
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.22,748
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,520 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$195,262
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$248,118
Average tempThe average temperature here across a full year.49°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

20 Walnut 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 more than 94% of homes in Norfolk County
  • Among the highest price per square foot in Norfolk County
  • Smaller than 72% of homes in Norfolk County
  • Has a smaller lot than 96% of homes in Needham 02492
  • Older than 81% of homes in Needham 02492

What homes are worth in Needham 02492

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

This home
$555K$3.6M

This home is worth more than 75% of homes in Needham 02492.

How it measures up in Needham 02492

The dot is this home. The mark in the middle is the typical home in Needham 02492.

Estimated value$2,101,242
CheaperTypical $1,533,459Pricier

Pricier than 75% of homes nearby

Price per ft²$1614
CheaperTypical $1171Pricier

Pricier than 91% of homes nearby

Living area1,302 ft²
SmallerTypical 1,410 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.16 ac
SmallerTypical 0.26 acBigger

Bigger than 4% of homes nearby

Year built1930
OlderTypical 1958Newer

Newer than 19% of homes nearby

How 20 Walnut St ranks against every home in each area.
MeasureThis homeNeedham 02492Norfolk County
Estimated valuepricier than$2,101,24275% of homes94% of homes
Price per ft²pricier than$161491% of homesalmost all homes
Living areabigger than1,302 ft²41% of homes28% of homes
Lot sizebigger than0.16 ac4% of homes17% of homes
Year builtnewer than193019% of homes26% of homes

About 20 Walnut St

How much is 20 Walnut St, Needham, MA worth?

The TopHap Estimate for 20 Walnut St, Needham, MA is $2,101,242 as of Sep 24, 2026. The likely range is $2,001,330 to $2,201,154. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Walnut St, Needham, MA last sell?

20 Walnut St, Needham, MA last sold on Jun 15, 2022 for $1,760,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 20 Walnut St, Needham, MA?

20 Walnut St, Needham, MA has 4 bedrooms, 2.5 bathrooms, 1,302 square feet of living space and a 0.16-acre lot.

When was 20 Walnut St, Needham, MA built?

20 Walnut St, Needham, MA was built in 1930, making it 96 years old. The building has 2 stories.

What schools serve 20 Walnut St, Needham, MA?

20 Walnut St, Needham, MA is assigned to Newman Elementary School (elementary), rated A; Pollard Middle School (middle), rated A+; Needham High School (high), rated A+. All sit in Needham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Walnut St, Needham, MA compare to other homes in Needham 02492?

Among the 6,598 homes in Needham 02492, it is worth more than 75% of them ($2,101,242 against a typical $1,533,459), its price per square foot is higher than 91% of them ($1614 against a typical $1171), it is bigger than 41% of them (1,302 ft² against a typical 1,410 ft²), its lot is bigger than 4% of them (0.16 ac against a typical 0.26 ac) and it is newer than 19% of them (1930 against a typical 1958). Measured against all of Norfolk County, it is worth more than 94% 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 Walnut St, Needham, MA?

The 2025 property tax bill for 20 Walnut St, Needham, MA was $18,843. The county assessed it at $1,777,600.

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