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Single Family ResidenceResidential
$346,694$492 / 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 83How 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 $38,000 on Sep 1, 1992

312 MILL ST

GARDNER, MA 01440
1
Beds
1
Baths
704 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$347K
$289K low$405K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$38,000 · Sep 1, 1992

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,712 (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.$342,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$83,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$258,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$326,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$291,334

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.117 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.area not mapped

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.Ranch
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.0.51
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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
Gardner High SchoolD+
High · Grades 8–12 · 2.2 mi
M
Gardner Middle SchoolD
Middle · Grades 5–7 · 2.4 mi
E
Gardner Elementary SchoolD-
Elementary · Grades PK–4 · 2.5 mi

District: Gardner School District

Neighborhood · ZIP 01440These 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.123
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.21,657
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.854 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,433
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,787
Average tempThe average temperature here across a full year.45°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.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

312 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 85% of homes in Worcester County
  • Among the highest price per square foot in Gardner 01440
  • Among the smallest homes in Worcester County
  • Has a bigger lot than 74% of homes in Gardner 01440
  • Newer than 97% of homes in Gardner 01440

What homes are worth in Gardner 01440

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

This home
$157K$645K

This home is worth more than 37% of homes in Gardner 01440.

How it measures up in Gardner 01440

The dot is this home. The mark in the middle is the typical home in Gardner 01440.

Estimated value$346,694
CheaperTypical $373,897Pricier

Pricier than 37% of homes nearby

Price per ft²$492
CheaperTypical $267Pricier

Pricier than almost all homes nearby

Living area704 ft²
SmallerTypical 1,496 ft²Bigger

Bigger than 6% of homes nearby

Lot size0.51 ac
SmallerTypical 0.29 acBigger

Bigger than 74% of homes nearby

Year built2007
OlderTypical 1950Newer

Newer than 97% of homes nearby

How 312 Mill St ranks against every home in each area.
MeasureThis homeGardner 01440Worcester County
Estimated valuepricier than$346,69437% of homes15% of homes
Price per ft²pricier than$492almost all homes98% of homes
Living areabigger than704 ft²6% of homesalmost no homes
Lot sizebigger than0.51 ac74% of homes52% of homes
Year builtnewer than200797% of homes92% of homes

About 312 Mill St

How much is 312 Mill St, Gardner, MA worth?

The TopHap Estimate for 312 Mill St, Gardner, MA is $346,694 as of Sep 24, 2026. The likely range is $288,592 to $404,796. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 312 Mill St, Gardner, MA last sell?

312 Mill St, Gardner, MA last sold on Sep 1, 1992 for $38,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 312 Mill St, Gardner, MA?

312 Mill St, Gardner, MA has 1 bedrooms, 1 bathrooms, 704 square feet of living space and a 0.51-acre lot.

When was 312 Mill St, Gardner, MA built?

312 Mill St, Gardner, MA was built in 2007, making it 19 years old. It is a ranch home. The building has 1 story.

What schools serve 312 Mill St, Gardner, MA?

312 Mill St, Gardner, MA is assigned to Gardner High School (high), rated D+; Gardner Middle School (middle), rated D; Gardner Elementary School (elementary), rated D-. All sit in Gardner School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 312 Mill St, Gardner, MA compare to other homes in Gardner 01440?

Among the 5,707 homes in Gardner 01440, it is worth more than 37% of them ($346,694 against a typical $373,897), its price per square foot is higher than almost all of them ($492 against a typical $267), it is bigger than 6% of them (704 ft² against a typical 1,496 ft²), its lot is bigger than 74% of them (0.51 ac against a typical 0.29 ac) and it is newer than 97% of them (2007 against a typical 1950). Measured against all of Worcester County, it is worth more than 15% 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 312 Mill St, Gardner, MA?

The 2026 property tax bill for 312 Mill St, Gardner, MA was $4,712. The county assessed it at $342,200.

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