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Single Family ResidenceResidential
$2,305,012$575 / 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 Jul 14, 2026
Last sold for $1,250,000 on Oct 14, 2009

20 MARTINGALE RD

LEXINGTON, MA 02421
4
Beds
4.5
Baths
4,012 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.
0.37 ac
Lot SizeThe size of the land the home sits on, from county records.
2008
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2.3M
$2.2M low$2.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,250,000 · Oct 14, 2009
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$1,820,012
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$1,456,010
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.21%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$485,000
RBS CITIZENS NA · recorded Jun 11, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$25,659 (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.$2,098,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$896,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,202,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,180,725

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.Contemporary
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.37
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

Transaction History(1)

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
Maria Hastings Elementary SchoolA+
Elementary · Grades KG–5 · 0.8 mi
M
William Diamond Middle SchoolA
Middle · Grades 6–8 · 1.3 mi
H
Lexingon High SchoolA+
High · Grades 9–12 · 1.3 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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 Martingale Rd 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 96% of homes in Middlesex County
  • Costs less per square foot than 83% of homes in Lexington 02421
  • Bigger than 95% of homes in Middlesex County
  • Newer than 94% of homes in Middlesex County

What homes are worth in Lexington 02421

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

This home
$808K$3.4M

This home is worth more than 84% of 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.

Estimated value$2,305,012
CheaperTypical $1,541,136Pricier

Pricier than 84% of homes nearby

Price per ft²$575
CheaperTypical $688Pricier

Pricier than 17% of homes nearby

Living area4,012 ft²
SmallerTypical 2,213 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.37 ac
SmallerTypical 0.36 acBigger

Bigger than 53% of homes nearby

Year built2008
OlderTypical 1958Newer

Newer than 87% of homes nearby

How 20 Martingale Rd ranks against every home in each area.
MeasureThis homeLexington 02421Middlesex County
Estimated valuepricier than$2,305,01284% of homes96% of homes
Price per ft²pricier than$57517% of homes72% of homes
Living areabigger than4,012 ft²89% of homes95% of homes
Lot sizebigger than0.37 ac53% of homes56% of homes
Year builtnewer than200887% of homes94% of homes

About 20 Martingale Rd

How much is 20 Martingale Rd, Lexington, MA worth?

The TopHap Estimate for 20 Martingale Rd, Lexington, MA is $2,305,012 as of Jul 14, 2026. The likely range is $2,190,159 to $2,419,865. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Martingale Rd, Lexington, MA last sell?

20 Martingale Rd, Lexington, MA last sold on Oct 14, 2009 for $1,250,000, according to the county's recorded deed.

How big is 20 Martingale Rd, Lexington, MA?

20 Martingale Rd, Lexington, MA has 4 bedrooms, 4.5 bathrooms, 4,012 square feet of living space and a 0.37-acre lot.

When was 20 Martingale Rd, Lexington, MA built?

20 Martingale Rd, Lexington, MA was built in 2008, making it 18 years old. It is a contemporary home. The building has 2 stories.

What schools serve 20 Martingale Rd, Lexington, MA?

20 Martingale Rd, Lexington, MA is assigned to Maria Hastings Elementary School (elementary), rated A+; William Diamond Middle School (middle), 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 20 Martingale Rd, Lexington, MA compare to other homes in Lexington 02421?

Among the 5,257 homes in Lexington 02421, it is worth more than 84% of them ($2,305,012 against a typical $1,541,136), its price per square foot is higher than 17% of them ($575 against a typical $688), it is bigger than 89% of them (4,012 ft² against a typical 2,213 ft²), its lot is bigger than 53% of them (0.37 ac against a typical 0.36 ac) and it is newer than 87% of them (2008 against a typical 1958). Measured against all of Middlesex County, it is worth more than 96% 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 Martingale Rd, Lexington, MA?

The 2025 property tax bill for 20 Martingale Rd, Lexington, MA was $25,659. The county assessed it at $2,098,000.

Closest homes

More homes in Lexington 02421

Assigned schools

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