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Duplex (2 Units, Any Combination)Residential
Last sold for $2,200,000 on May 23, 2025

510 WALTHAM ST

LEXINGTON, MA 02421
9
Beds
12 / 4
Baths
5,944 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.
0.75 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
18
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$2,200,000 · May 23, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,691 (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.$1,283,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$648,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$635,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,283,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.0.75
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Forced Air
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, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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
Clarke Middle SchoolA
Middle · Grades 6–8 · 0.2 mi
E
Bridge Elementary SchoolA
Elementary · Grades KG–5 · 0.7 mi
H
Lexingon High SchoolA+
High · Grades 9–12 · 0.8 mi

District: Lexington School District

Neighborhood · ZIP 02421These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.80

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.18,851
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,009 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$178,785
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$233,901
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

510 Waltham 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.

  • Among the largest homes in Lexington 02421
  • Has a bigger lot than 90% of homes in Lexington 02421
  • Among the newest homes in Lexington 02421

How it measures up in Lexington 02421

The dot is this home. The mark in the middle is the typical home in Lexington 02421.

Living area5,944 ft²
SmallerTypical 2,220 ft²Bigger

Bigger than almost all homes nearby

Lot size0.75 ac
SmallerTypical 0.36 acBigger

Bigger than 90% of homes nearby

Year built2024
OlderTypical 1958Newer

Newer than almost all homes nearby

How 510 Waltham St ranks against every home in each area.
MeasureThis homeLexington 02421Middlesex County
Living areabigger than5,944 ft²almost all homesalmost all homes
Lot sizebigger than0.75 ac90% of homes73% of homes
Year builtnewer than2024almost all homesalmost all homes

About 510 Waltham St

When did 510 Waltham St, Lexington, MA last sell?

510 Waltham St, Lexington, MA last sold on May 23, 2025 for $2,200,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 510 Waltham St, Lexington, MA?

510 Waltham St, Lexington, MA has 9 bedrooms, 12 bathrooms, 5,944 square feet of living space and a 0.75-acre lot.

When was 510 Waltham St, Lexington, MA built?

510 Waltham St, Lexington, MA was built in 2024, making it 2 years old. The building has 3 stories.

What schools serve 510 Waltham St, Lexington, MA?

510 Waltham St, Lexington, MA is assigned to Clarke Middle School (middle), rated A; Bridge Elementary School (elementary), rated A; Lexingon High School (high), rated A+. All sit in Lexington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 510 Waltham St, Lexington, MA compare to other homes in Lexington 02421?

Among the 5,257 homes in Lexington 02421, it is bigger than almost all of them (5,944 ft² against a typical 2,220 ft²), its lot is bigger than 90% of them (0.75 ac against a typical 0.36 ac) and it is newer than almost all of them (2024 against a typical 1958). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 510 Waltham St, Lexington, MA?

The 2025 property tax bill for 510 Waltham St, Lexington, MA was $15,691. The county assessed it at $1,283,000.

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