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Single Family ResidenceResidential
$917,479$617 / 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 94How 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 $334,500 on Apr 18, 2000

40 BARTON DR

SUDBURY, MA 01776
3
Beds
3 / 2
Baths
1,488 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.
1.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1959
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$917K
$863K low$972K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$334,500 · Apr 18, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,162 (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.$694,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$439,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$255,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$879,415

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.109 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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.Split Level
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.1.48
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
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

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.

M
Ephraim Curtis Middle SchoolA
Middle · Grades 6–8 · 1.0 mi
E
Peter NoyesA
Elementary · Grades PK–5 · 2.2 mi
H
Lincoln-Sudbury Regional High SchoolA
High · Grades 9–12 · 2.8 mi

District: Sudbury School District

Neighborhood · ZIP 01776These 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.14
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.67

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.5%
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.19,212
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.791 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$218,626
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$263,426
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

40 Barton Dr 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 72% of homes in Sudbury 01776
  • Costs more per square foot than 92% of homes in Sudbury 01776
  • Smaller than 87% of homes in Sudbury 01776
  • Has a bigger lot than 85% of homes in Middlesex County
  • Older than 77% of homes in Sudbury 01776

What homes are worth in Sudbury 01776

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

This home
$610K$2.4M

This home is worth more than 28% of homes in Sudbury 01776.

How it measures up in Sudbury 01776

The dot is this home. The mark in the middle is the typical home in Sudbury 01776.

Estimated value$917,479
CheaperTypical $1,120,262Pricier

Pricier than 28% of homes nearby

Price per ft²$617
CheaperTypical $461Pricier

Pricier than 92% of homes nearby

Living area1,488 ft²
SmallerTypical 2,480 ft²Bigger

Bigger than 13% of homes nearby

Lot size1.48 ac
SmallerTypical 0.95 acBigger

Bigger than 77% of homes nearby

Year built1959
OlderTypical 1971Newer

Newer than 23% of homes nearby

How 40 Barton Dr ranks against every home in each area.
MeasureThis homeSudbury 01776Middlesex County
Estimated valuepricier than$917,47928% of homes64% of homes
Price per ft²pricier than$61792% of homes78% of homes
Living areabigger than1,488 ft²13% of homes35% of homes
Lot sizebigger than1.48 ac77% of homes85% of homes
Year builtnewer than195923% of homes51% of homes

About 40 Barton Dr

How much is 40 Barton Dr, Sudbury, MA worth?

The TopHap Estimate for 40 Barton Dr, Sudbury, MA is $917,479 as of Sep 24, 2026. The likely range is $862,624 to $972,334. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Barton Dr, Sudbury, MA last sell?

40 Barton Dr, Sudbury, MA last sold on Apr 18, 2000 for $334,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 40 Barton Dr, Sudbury, MA?

40 Barton Dr, Sudbury, MA has 3 bedrooms, 3 bathrooms, 1,488 square feet of living space and a 1.48-acre lot.

When was 40 Barton Dr, Sudbury, MA built?

40 Barton Dr, Sudbury, MA was built in 1959, making it 67 years old. It is a split level home. The building has 1 story.

What schools serve 40 Barton Dr, Sudbury, MA?

40 Barton Dr, Sudbury, MA is assigned to Ephraim Curtis Middle School (middle), rated A; Peter Noyes (elementary), rated A; Lincoln-Sudbury Regional High School (high), rated A. All sit in Sudbury School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Barton Dr, Sudbury, MA compare to other homes in Sudbury 01776?

Among the 6,101 homes in Sudbury 01776, it is worth more than 28% of them ($917,479 against a typical $1,120,262), its price per square foot is higher than 92% of them ($617 against a typical $461), it is bigger than 13% of them (1,488 ft² against a typical 2,480 ft²), its lot is bigger than 77% of them (1.48 ac against a typical 0.95 ac) and it is newer than 23% of them (1959 against a typical 1971). Measured against all of Middlesex County, it is worth more than 64% 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 40 Barton Dr, Sudbury, MA?

The 2025 property tax bill for 40 Barton Dr, Sudbury, MA was $10,162. The county assessed it at $694,100.

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