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Single Family ResidenceResidential
$1,278,242$861 / 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 93How 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 $517,647 on Nov 17, 2006

20 SUNNYSIDE AVE

WELLESLEY, MA 02482
3
Beds
1.5
Baths
1,484 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1968
Year BuiltThe year the home was originally built, according to county records.
2
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

$1.3M
$1.2M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$517,647 · Nov 17, 2006

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,030 (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.$1,073,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$944,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$129,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,297,510

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(14)

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
John D. Hardy Elementary SchoolA
Elementary · Grades KG–5 · 1.0 mi
M
Wellesley Middle SchoolA
Middle · Grades 6–8 · 1.9 mi
H
Wellesley High SchoolA+
High · Grades 9–12 · 2.5 mi

District: Wellesley School District

Neighborhood · ZIP 02482These 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.79
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 100.70

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.13,654
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,850 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$209,564
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$298,285
Average tempThe average temperature here across a full year.49°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.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 Sunnyside 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.

  • Worth less than 87% of homes in Fells
  • Costs more per square foot than 91% of homes in Norfolk County
  • Smaller than 87% of homes in Fells
  • Has a smaller lot than 82% of homes in Fells
  • Newer than 68% of homes in Fells

What homes are worth in Wellesley 02482

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

This home
$750K$5.4M

This home is worth more than 16% of homes in Wellesley 02482.

How it measures up in Wellesley 02482

The dot is this home. The mark in the middle is the typical home in Wellesley 02482.

Estimated value$1,278,242
CheaperTypical $1,910,465Pricier

Pricier than 16% of homes nearby

Price per ft²$861
CheaperTypical $822Pricier

Pricier than 57% of homes nearby

Living area1,484 ft²
SmallerTypical 2,330 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.23 ac
SmallerTypical 0.3 acBigger

Bigger than 19% of homes nearby

Year built1968
OlderTypical 1955Newer

Newer than 62% of homes nearby

How 20 Sunnyside Ave ranks against every home in each area.
MeasureThis homeFellsWellesley 02482Norfolk County
Estimated valuepricier than$1,278,24213% of homes16% of homes83% of homes
Price per ft²pricier than$86167% of homes57% of homes91% of homes
Living areabigger than1,484 ft²13% of homes15% of homes40% of homes
Lot sizebigger than0.23 ac18% of homes19% of homes30% of homes
Year builtnewer than196868% of homes62% of homes61% of homes

About 20 Sunnyside Ave

How much is 20 Sunnyside Ave, Wellesley, MA worth?

The TopHap Estimate for 20 Sunnyside Ave, Wellesley, MA is $1,278,242 as of Sep 24, 2026. The likely range is $1,185,606 to $1,370,878. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Sunnyside Ave, Wellesley, MA last sell?

20 Sunnyside Ave, Wellesley, MA last sold on Nov 17, 2006 for $517,647, according to the county's recorded deed.

How big is 20 Sunnyside Ave, Wellesley, MA?

20 Sunnyside Ave, Wellesley, MA has 3 bedrooms, 1.5 bathrooms, 1,484 square feet of living space and a 0.23-acre lot.

When was 20 Sunnyside Ave, Wellesley, MA built?

20 Sunnyside Ave, Wellesley, MA was built in 1968, making it 58 years old. The building has 2 stories.

What schools serve 20 Sunnyside Ave, Wellesley, MA?

20 Sunnyside Ave, Wellesley, MA is assigned to John D. Hardy Elementary School (elementary), rated A; Wellesley Middle School (middle), rated A; Wellesley High School (high), rated A+. All sit in Wellesley School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Sunnyside Ave, Wellesley, MA compare to other homes in Wellesley 02482?

Among the 3,546 homes in Wellesley 02482, it is worth more than 16% of them ($1,278,242 against a typical $1,910,465), its price per square foot is higher than 57% of them ($861 against a typical $822), it is bigger than 15% of them (1,484 ft² against a typical 2,330 ft²), its lot is bigger than 19% of them (0.23 ac against a typical 0.3 ac) and it is newer than 62% of them (1968 against a typical 1955). Measured against all of Norfolk County, it is worth more than 83% 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 Sunnyside Ave, Wellesley, MA?

The 2025 property tax bill for 20 Sunnyside Ave, Wellesley, MA was $11,030. The county assessed it at $1,073,000.

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