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CondominiumResidential
$1,141,023$477 / 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 Aug 30, 2026

15 WALNUT ST

ARLINGTON, MA 02476
Building report
4
Beds
2.5
Baths
2,390 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.
1920
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.1M
$1.1M low$1.2M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,704 (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.$901,000 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$901,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$959,025

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
ConstructionThe main material the home's frame and walls are built from.Steel Frame
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.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.

M
Ottoson Middle SchoolA
Middle · Grades 7–8 · 0.3 mi
H
Arlington High SchoolA+
High · Grades 9–12 · 0.4 mi
E
Brackett Elementary SchoolB+
Elementary · Grades KG–5 · 0.6 mi

District: Arlington School District

Neighborhood · ZIP 02476These 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.61
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.78

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.18,178
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,391 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,237
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$192,900
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.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

15 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 77% of homes in Middlesex County
  • Costs less per square foot than 91% of homes in Arlington 02476
  • Bigger than 74% of homes in Arlington 02476
  • Has a bigger lot than 75% of homes in Arlington 02476
  • Older than 78% of homes in Arlington 02476

What homes are worth in Arlington 02476

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

This home
$321K$2.3M

This home is worth more than 59% of homes in Arlington 02476.

How it measures up in Arlington 02476

The dot is this home. The mark in the middle is the typical home in Arlington 02476.

Estimated value$1,141,023
CheaperTypical $1,067,977Pricier

Pricier than 59% of homes nearby

Price per ft²$477
CheaperTypical $612Pricier

Pricier than 9% of homes nearby

Living area2,390 ft²
SmallerTypical 1,843 ft²Bigger

Bigger than 74% of homes nearby

Lot size0.23 ac
SmallerTypical 0.15 acBigger

Bigger than 75% of homes nearby

Year built1920
OlderTypical 1933Newer

Newer than 22% of homes nearby

How 15 Walnut St ranks against every home in each area.
MeasureThis homeArlington 02476Middlesex County
Estimated valuepricier than$1,141,02359% of homes77% of homes
Price per ft²pricier than$4779% of homes54% of homes
Living areabigger than2,390 ft²74% of homes71% of homes
Lot sizebigger than0.23 ac75% of homes38% of homes
Year builtnewer than192022% of homes26% of homes

About 15 Walnut St

How much is 15 Walnut St, Arlington, MA worth?

The TopHap Estimate for 15 Walnut St, Arlington, MA is $1,141,023 as of Aug 30, 2026. The likely range is $1,059,823 to $1,222,223. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15 Walnut St, Arlington, MA last sell?

15 Walnut St, Arlington, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 15 Walnut St, Arlington, MA?

15 Walnut St, Arlington, MA has 4 bedrooms, 2.5 bathrooms and 2,390 square feet of living space.

When was 15 Walnut St, Arlington, MA built?

15 Walnut St, Arlington, MA was built in 1920, making it 106 years old. The building has 3 stories.

What schools serve 15 Walnut St, Arlington, MA?

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

How does 15 Walnut St, Arlington, MA compare to other homes in Arlington 02476?

Among the 5,972 homes in Arlington 02476, it is worth more than 59% of them ($1,141,023 against a typical $1,067,977), its price per square foot is higher than 9% of them ($477 against a typical $612), it is bigger than 74% of them (2,390 ft² against a typical 1,843 ft²), its lot is bigger than 75% of them (0.23 ac against a typical 0.15 ac) and it is newer than 22% of them (1920 against a typical 1933). Measured against all of Middlesex County, it is worth more than 77% 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 15 Walnut St, Arlington, MA?

The 2025 property tax bill for 15 Walnut St, Arlington, MA was $9,704. The county assessed it at $901,000.

More homes on Walnut St

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Assigned schools

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