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Single Family ResidenceResidential
$1,110,022$343 / 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 Sep 24, 2026
Last sold for $484,000 on Oct 20, 1988

30 FLAGG RD

SOUTHBOROUGH, MA 01772
4
Beds
2.5
Baths
3,238 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 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$1.1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$484,000 · Oct 20, 1988

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,950 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,110,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$320,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$790,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,068,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,120,947

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
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.1.00
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
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, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(13)

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
P Brent TrottierA+
Middle · Grades 6–8 · 0.6 mi
E
Mary E Finn School
Elementary · Grades PK–1 · 1.7 mi
H
Algonquin Regional High SchoolA+
High · Grades 9–12 · 3.7 mi

District: Southborough School District

Neighborhood · ZIP 01772These 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.32
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.10,867
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.705 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$180,666
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$225,158
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%

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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

30 Flagg 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 97% of homes in Worcester County
  • Costs less per square foot than 87% of homes in Southborough 01772
  • Bigger than 92% of homes in Worcester County
  • Has a bigger lot than 69% of homes in Worcester County
  • Newer than 70% of homes in Worcester County

What homes are worth in Southborough 01772

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

This home
$489K$2.1M

This home is worth more than 66% of homes in Southborough 01772.

How it measures up in Southborough 01772

The dot is this home. The mark in the middle is the typical home in Southborough 01772.

Estimated value$1,110,022
CheaperTypical $951,262Pricier

Pricier than 66% of homes nearby

Price per ft²$343
CheaperTypical $412Pricier

Pricier than 13% of homes nearby

Living area3,238 ft²
SmallerTypical 2,459 ft²Bigger

Bigger than 76% of homes nearby

Lot size1 ac
SmallerTypical 1 acBigger

Bigger than 50% of homes nearby

Year built1987
OlderTypical 1984Newer

Newer than 54% of homes nearby

How 30 Flagg Rd ranks against every home in each area.
MeasureThis homeSouthborough 01772Worcester County
Estimated valuepricier than$1,110,02266% of homes97% of homes
Price per ft²pricier than$34313% of homes69% of homes
Living areabigger than3,238 ft²76% of homes92% of homes
Lot sizebigger than1 ac50% of homes69% of homes
Year builtnewer than198754% of homes70% of homes

About 30 Flagg Rd

How much is 30 Flagg Rd, Southborough, MA worth?

The TopHap Estimate for 30 Flagg Rd, Southborough, MA is $1,110,022 as of Sep 24, 2026. The likely range is $1,058,728 to $1,161,316. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Flagg Rd, Southborough, MA last sell?

30 Flagg Rd, Southborough, MA last sold on Oct 20, 1988 for $484,000, according to the county's recorded deed.

How big is 30 Flagg Rd, Southborough, MA?

30 Flagg Rd, Southborough, MA has 4 bedrooms, 2.5 bathrooms, 3,238 square feet of living space and a 1.00-acre lot.

When was 30 Flagg Rd, Southborough, MA built?

30 Flagg Rd, Southborough, MA was built in 1987, making it 39 years old. It is a colonial home. The building has 2 stories.

What schools serve 30 Flagg Rd, Southborough, MA?

30 Flagg Rd, Southborough, MA is assigned to P Brent Trottier (middle), rated A+; Mary E Finn School (elementary); Algonquin Regional High School (high), rated A+. All sit in Southborough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 30 Flagg Rd, Southborough, MA compare to other homes in Southborough 01772?

Among the 3,253 homes in Southborough 01772, it is worth more than 66% of them ($1,110,022 against a typical $951,262), its price per square foot is higher than 13% of them ($343 against a typical $412), it is bigger than 76% of them (3,238 ft² against a typical 2,459 ft²), its lot is bigger than 50% of them (1 ac against a typical 1 ac) and it is newer than 54% of them (1987 against a typical 1984). Measured against all of Worcester County, it is worth more than 97% 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 30 Flagg Rd, Southborough, MA?

The 2026 property tax bill for 30 Flagg Rd, Southborough, MA was $15,950. The county assessed it at $1,110,700.

More homes on Flagg Rd

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