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Single Family ResidenceResidential
$848,475$278 / 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 89How 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 $355,000 on Aug 7, 1997

31 SIBLEY ST

GRAFTON, MA 01519
5
Beds
3.5
Baths
3,048 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.
5.94 ac
Lot SizeThe size of the land the home sits on, from county records.
1751
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
10
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

$848K
$759K low$938K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$355,000 · Aug 7, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,540 (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.$1,208,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$407,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$801,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,148,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$918,262

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.5.94
ConstructionThe main material the home's frame and walls are built from.Stone
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(7)

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
Grafton High SchoolB
High · Grades 9–12 · 1.1 mi
M
Grafton Middle SchoolB+
Middle · Grades 7–8 · 1.1 mi
E
North Grafton Elementary School
Elementary · Grades PK–1 · 2.8 mi

District: Grafton School District

Neighborhood · ZIP 01519These 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.60
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 100.61

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.6.4%
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.7,957
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.742 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,960
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,222
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

31 Sibley 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 more than 91% of homes in Worcester County
  • Costs less per square foot than 89% of homes in Grafton 01519
  • Bigger than 89% of homes in Worcester County
  • Has a bigger lot than 93% of homes in Worcester County
  • Among the oldest homes in Worcester County

What homes are worth in Grafton 01519

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

This home
$298K$1.2M

This home is worth more than 74% of homes in Grafton 01519.

How it measures up in Grafton 01519

The dot is this home. The mark in the middle is the typical home in Grafton 01519.

Estimated value$848,475
CheaperTypical $663,733Pricier

Pricier than 74% of homes nearby

Price per ft²$278
CheaperTypical $342Pricier

Pricier than 11% of homes nearby

Living area3,048 ft²
SmallerTypical 2,018 ft²Bigger

Bigger than 86% of homes nearby

Lot size5.94 ac
SmallerTypical 0.94 acBigger

Bigger than 87% of homes nearby

Year built1751
OlderTypical 1987Newer

Older than almost all homes nearby

How 31 Sibley St ranks against every home in each area.
MeasureThis homeGrafton 01519Worcester County
Estimated valuepricier than$848,47574% of homes91% of homes
Price per ft²pricier than$27811% of homes35% of homes
Living areabigger than3,048 ft²86% of homes89% of homes
Lot sizebigger than5.94 ac87% of homes93% of homes
Year builtnewer than1751almost no homesalmost no homes

About 31 Sibley St

How much is 31 Sibley St, Grafton, MA worth?

The TopHap Estimate for 31 Sibley St, Grafton, MA is $848,475 as of Sep 24, 2026. The likely range is $758,695 to $938,256. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Sibley St, Grafton, MA last sell?

31 Sibley St, Grafton, MA last sold on Aug 7, 1997 for $355,000, according to the county's recorded deed.

How big is 31 Sibley St, Grafton, MA?

31 Sibley St, Grafton, MA has 5 bedrooms, 3.5 bathrooms, 3,048 square feet of living space and a 5.94-acre lot.

When was 31 Sibley St, Grafton, MA built?

31 Sibley St, Grafton, MA was built in 1751, making it 275 years old. It is a colonial home. The building has 3 stories.

What schools serve 31 Sibley St, Grafton, MA?

31 Sibley St, Grafton, MA is assigned to Grafton High School (high), rated B; Grafton Middle School (middle), rated B+; North Grafton Elementary School (elementary). All sit in Grafton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Sibley St, Grafton, MA compare to other homes in Grafton 01519?

Among the 2,462 homes in Grafton 01519, it is worth more than 74% of them ($848,475 against a typical $663,733), its price per square foot is higher than 11% of them ($278 against a typical $342), it is bigger than 86% of them (3,048 ft² against a typical 2,018 ft²), its lot is bigger than 87% of them (5.94 ac against a typical 0.94 ac) and it is newer than almost none of them (1751 against a typical 1987). Measured against all of Worcester County, it is worth more than 91% 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 31 Sibley St, Grafton, MA?

The 2026 property tax bill for 31 Sibley St, Grafton, MA was $16,540. The county assessed it at $1,208,200.

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