Skip to content
Skip to content
TopHapOpen in map
Commercial (General)Commercial
Last sold for $74,000,000 on Jul 29, 2026

1 CORNERSTONE SQ

WESTFORD, MA 01886
0
Baths
220,257 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.
24.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2012
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$74,000,000 · Jul 29, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$493,238 (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.$36,617,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,272,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,344,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Commercial (General)
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.24.17
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.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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.

H
Westford AcademyA
High · Grades 9–12 · 2.0 mi
E
Nabnasset Elementary School
Elementary · Grades PK–2 · 3.0 mi
M
Stony Brook Middle SchoolA-
Middle · Grades 6–8 · 3.3 mi

District: Westford School District

Neighborhood · ZIP 01886These 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.19
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 100.80

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.25,048
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.803 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$163,754
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$183,117
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

Do you own this home?
Claim this home

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

1 Cornerstone Sq 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 Westford 01886
  • Has a bigger lot than 98% of homes in Middlesex County
  • Newer than 95% of homes in Middlesex County

How it measures up in Westford 01886

The dot is this home. The mark in the middle is the typical home in Westford 01886.

Living area220,257 ft²
SmallerTypical 2,064 ft²Bigger

Bigger than almost all homes nearby

Lot size24.17 ac
SmallerTypical 0.92 acBigger

Bigger than 96% of homes nearby

Year built2012
OlderTypical 1984Newer

Newer than 94% of homes nearby

How 1 Cornerstone Sq ranks against every home in each area.
MeasureThis homeWestford 01886Middlesex County
Living areabigger than220,257 ft²almost all homesalmost all homes
Lot sizebigger than24.17 ac96% of homes98% of homes
Year builtnewer than201294% of homes95% of homes

About 1 Cornerstone Sq

When did 1 Cornerstone Sq, Westford, MA last sell?

1 Cornerstone Sq, Westford, MA last sold on Jul 29, 2026 for $74,000,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 1 Cornerstone Sq, Westford, MA?

1 Cornerstone Sq, Westford, MA has 220,257 square feet of living space and a 24.17-acre lot.

When was 1 Cornerstone Sq, Westford, MA built?

1 Cornerstone Sq, Westford, MA was built in 2012, making it 14 years old. The building has 1 story.

What schools serve 1 Cornerstone Sq, Westford, MA?

1 Cornerstone Sq, Westford, MA is assigned to Westford Academy (high), rated A; Nabnasset Elementary School (elementary); Stony Brook Middle School (middle), rated A-. All sit in Westford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1 Cornerstone Sq, Westford, MA compare to other homes in Westford 01886?

Among the 8,171 homes in Westford 01886, it is bigger than almost all of them (220,257 ft² against a typical 2,064 ft²), its lot is bigger than 96% of them (24.17 ac against a typical 0.92 ac) and it is newer than 94% of them (2012 against a typical 1984). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 1 Cornerstone Sq, Westford, MA?

The 2025 property tax bill for 1 Cornerstone Sq, Westford, MA was $493,238. The county assessed it at $36,617,500.

Closest homes

More homes in Westford 01886

Assigned schools

Explore the area

See this home in context

Open 1 Cornerstone Sq on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map