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CondominiumResidential
$555,729$365 / 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 97How 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 $375,000 on Nov 5, 2015

12 MILL ST

NORTHBOROUGH, MA 01532
2
Beds
2.5
Baths
1,524 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.
0.56 ac
Lot SizeThe size of the land the home sits on, from county records.
2015
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$556K
$537K low$574K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$375,000 · Nov 5, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,896 (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.$483,900 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$483,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$459,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$598,405

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.53 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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.0.56
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Marion E ZehB
Elementary · Grades KG–5 · 0.3 mi
M
Robert E. Melican Middle SchoolB-
Middle · Grades 6–8 · 0.9 mi
H
Algonquin Regional High SchoolA
High · Grades 9–12 · 1.5 mi

District: Northborough School District

Neighborhood · ZIP 01532These 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.31
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.68

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.16,278
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.868 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$158,286
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$198,404
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

12 Mill St 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 74% of homes in Northborough 01532
  • Costs more per square foot than 78% of homes in Worcester County
  • Newer than 98% of homes in Northborough 01532

What homes are worth in Northborough 01532

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

This home
$312K$1.4M

This home is worth more than 26% of homes in Northborough 01532.

How it measures up in Northborough 01532

The dot is this home. The mark in the middle is the typical home in Northborough 01532.

Estimated value$555,729
CheaperTypical $687,008Pricier

Pricier than 26% of homes nearby

Price per ft²$365
CheaperTypical $376Pricier

Pricier than 41% of homes nearby

Living area1,524 ft²
SmallerTypical 1,806 ft²Bigger

Bigger than 37% of homes nearby

Lot size0.56 ac
SmallerTypical 0.57 acBigger

Bigger than 50% of homes nearby

Year built2015
OlderTypical 1975Newer

Newer than 98% of homes nearby

How 12 Mill St ranks against every home in each area.
MeasureThis homeNorthborough 01532Worcester County
Estimated valuepricier than$555,72926% of homes65% of homes
Price per ft²pricier than$36541% of homes78% of homes
Living areabigger than1,524 ft²37% of homes41% of homes
Lot sizebigger than0.56 ac50% of homes55% of homes
Year builtnewer than201598% of homes96% of homes

About 12 Mill St

How much is 12 Mill St, Northborough, MA worth?

The TopHap Estimate for 12 Mill St, Northborough, MA is $555,729 as of Aug 30, 2026. The likely range is $537,428 to $574,030. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 Mill St, Northborough, MA last sell?

12 Mill St, Northborough, MA last sold on Nov 5, 2015 for $375,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 12 Mill St, Northborough, MA?

12 Mill St, Northborough, MA has 2 bedrooms, 2.5 bathrooms, 1,524 square feet of living space and a 0.56-acre lot.

When was 12 Mill St, Northborough, MA built?

12 Mill St, Northborough, MA was built in 2015, making it 11 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 12 Mill St, Northborough, MA?

12 Mill St, Northborough, MA is assigned to Marion E Zeh (elementary), rated B; Robert E. Melican Middle School (middle), rated B-; Algonquin Regional High School (high), rated A. All sit in Northborough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Mill St, Northborough, MA compare to other homes in Northborough 01532?

Among the 4,998 homes in Northborough 01532, it is worth more than 26% of them ($555,729 against a typical $687,008), its price per square foot is higher than 41% of them ($365 against a typical $376), it is bigger than 37% of them (1,524 ft² against a typical 1,806 ft²), its lot is bigger than 50% of them (0.56 ac against a typical 0.57 ac) and it is newer than 98% of them (2015 against a typical 1975). Measured against all of Worcester County, it is worth more than 65% 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 12 Mill St, Northborough, MA?

The 2025 property tax bill for 12 Mill St, Northborough, MA was $6,896. The county assessed it at $483,900.

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Assigned schools

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