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Single Family ResidenceResidential
$1,293,919$503 / 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 92How 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
Last sold for $1,220,000 on Dec 21, 2021

40 RIDGE HILL RD

SUDBURY, MA 01776
4
Beds
2.5
Baths
2,574 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.
3.05 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
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

$1.3M
$1.2M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,220,000 · Dec 21, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,454 (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.$1,123,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$462,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$661,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,367,905

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.78 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Colonial
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.3.05
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.Hot Water
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

Transaction History(8)

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
Lincoln-Sudbury Regional High SchoolA
High · Grades 9–12 · 0.7 mi
E
General John Nixon Elementary SchoolA
Elementary · Grades PK–5 · 0.8 mi
M
Ephraim Curtis Middle SchoolA
Middle · Grades 6–8 · 1.8 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 Ridge Hill 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 83% of homes in Middlesex County
  • Costs more per square foot than 68% of homes in Sudbury 01776
  • Bigger than 76% of homes in Middlesex County
  • Has a bigger lot than 92% of homes in Middlesex County
  • Newer than 70% of homes in Middlesex County

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
$564K$2.3M

This home is worth more than 64% 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$1,293,919
CheaperTypical $1,124,959Pricier

Pricier than 64% of homes nearby

Price per ft²$503
CheaperTypical $465Pricier

Pricier than 68% of homes nearby

Living area2,574 ft²
SmallerTypical 2,480 ft²Bigger

Bigger than 54% of homes nearby

Lot size3.05 ac
SmallerTypical 0.95 acBigger

Bigger than 89% of homes nearby

Year built1978
OlderTypical 1971Newer

Newer than 59% of homes nearby

How 40 Ridge Hill Rd ranks against every home in each area.
MeasureThis homeSudbury 01776Middlesex County
Estimated valuepricier than$1,293,91964% of homes83% of homes
Price per ft²pricier than$50368% of homes59% of homes
Living areabigger than2,574 ft²54% of homes76% of homes
Lot sizebigger than3.05 ac89% of homes92% of homes
Year builtnewer than197859% of homes70% of homes

About 40 Ridge Hill Rd

How much is 40 Ridge Hill Rd, Sudbury, MA worth?

The TopHap Estimate for 40 Ridge Hill Rd, Sudbury, MA is $1,293,919 as of Aug 30, 2026. The likely range is $1,196,294 to $1,391,544. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Ridge Hill Rd, Sudbury, MA last sell?

40 Ridge Hill Rd, Sudbury, MA last sold on Dec 21, 2021 for $1,220,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 40 Ridge Hill Rd, Sudbury, MA?

40 Ridge Hill Rd, Sudbury, MA has 4 bedrooms, 2.5 bathrooms, 2,574 square feet of living space and a 3.05-acre lot.

When was 40 Ridge Hill Rd, Sudbury, MA built?

40 Ridge Hill Rd, Sudbury, MA was built in 1978, making it 48 years old. It is a colonial home. The building has 2 stories.

What schools serve 40 Ridge Hill Rd, Sudbury, MA?

40 Ridge Hill Rd, Sudbury, MA is assigned to Lincoln-Sudbury Regional High School (high), rated A; General John Nixon Elementary School (elementary), rated A; Ephraim Curtis Middle School (middle), rated A. All sit in Sudbury School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Ridge Hill Rd, Sudbury, MA compare to other homes in Sudbury 01776?

Among the 6,101 homes in Sudbury 01776, it is worth more than 64% of them ($1,293,919 against a typical $1,124,959), its price per square foot is higher than 68% of them ($503 against a typical $465), it is bigger than 54% of them (2,574 ft² against a typical 2,480 ft²), its lot is bigger than 89% of them (3.05 ac against a typical 0.95 ac) and it is newer than 59% of them (1978 against a typical 1971). Measured against all of Middlesex County, it is worth more than 83% 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 Ridge Hill Rd, Sudbury, MA?

The 2025 property tax bill for 40 Ridge Hill Rd, Sudbury, MA was $16,454. The county assessed it at $1,123,900.

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