Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$464,954$267 / 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 Jul 14, 2026
Last sold for $272,500 on Sep 20, 2019

13 FLAT ROCK RD

PETERSHAM, MA 01366
3
Beds
2.5
Baths
1,742 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.
3.99 ac
Lot SizeThe size of the land the home sits on, from county records.
2004
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

$465K
$452K low$478K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$272,500 · Sep 20, 2019
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$364,954
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$291,963
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.23%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$100,000
MORTGAGE CORP EAST III · recorded Apr 11, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,295 (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.$365,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$63,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$301,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$347,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$446,215

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.36 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Colonial
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.3.99
ConstructionThe main material the home's frame and walls are built from.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Petersham CenterA
Elementary · Grades KG–6 · 3.1 mi
M
Ralph C. Mahar Regional High SchoolC
Middle · Grades 7–12 · 5.3 mi

District: Ralph C. Mahar School District

Neighborhood · ZIP 01366These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
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.819
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.18 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,718
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,158
Average tempThe average temperature here across a full year.46°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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

13 Flat Rock 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.

  • Costs less per square foot than 73% of homes in Worcester County
  • Has a bigger lot than 90% of homes in Worcester County
  • Newer than 89% of homes in Worcester County

What homes are worth in Petersham 01366

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

This home
$241K$839K

This home is worth more than 51% of homes in Petersham 01366.

How it measures up in Petersham 01366

The dot is this home. The mark in the middle is the typical home in Petersham 01366.

Estimated value$464,954
CheaperTypical $461,794Pricier

Pricier than 51% of homes nearby

Price per ft²$267
CheaperTypical $245Pricier

Pricier than 67% of homes nearby

Living area1,742 ft²
SmallerTypical 1,814 ft²Bigger

Bigger than 46% of homes nearby

Lot size3.99 ac
SmallerTypical 3.65 acBigger

Bigger than 52% of homes nearby

Year built2004
OlderTypical 1968Newer

Newer than 88% of homes nearby

How 13 Flat Rock Rd ranks against every home in each area.
MeasureThis homePetersham 01366Worcester County
Estimated valuepricier than$464,95451% of homes45% of homes
Price per ft²pricier than$26767% of homes27% of homes
Living areabigger than1,742 ft²46% of homes52% of homes
Lot sizebigger than3.99 ac52% of homes90% of homes
Year builtnewer than200488% of homes89% of homes

About 13 Flat Rock Rd

How much is 13 Flat Rock Rd, Petersham, MA worth?

The TopHap Estimate for 13 Flat Rock Rd, Petersham, MA is $464,954 as of Jul 14, 2026. The likely range is $452,043 to $477,865. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 13 Flat Rock Rd, Petersham, MA last sell?

13 Flat Rock Rd, Petersham, MA last sold on Sep 20, 2019 for $272,500, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 13 Flat Rock Rd, Petersham, MA?

13 Flat Rock Rd, Petersham, MA has 3 bedrooms, 2.5 bathrooms, 1,742 square feet of living space and a 3.99-acre lot.

When was 13 Flat Rock Rd, Petersham, MA built?

13 Flat Rock Rd, Petersham, MA was built in 2004, making it 22 years old. It is a colonial home. The building has 2 stories.

What schools serve 13 Flat Rock Rd, Petersham, MA?

13 Flat Rock Rd, Petersham, MA is assigned to Petersham Center (elementary), rated A; Ralph C. Mahar Regional High School (middle), rated C. All sit in Ralph C. Mahar School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 13 Flat Rock Rd, Petersham, MA compare to other homes in Petersham 01366?

Among the 552 homes in Petersham 01366, it is worth more than 51% of them ($464,954 against a typical $461,794), its price per square foot is higher than 67% of them ($267 against a typical $245), it is bigger than 46% of them (1,742 ft² against a typical 1,814 ft²), its lot is bigger than 52% of them (3.99 ac against a typical 3.65 ac) and it is newer than 88% of them (2004 against a typical 1968). Measured against all of Worcester County, it is worth more than 45% 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 13 Flat Rock Rd, Petersham, MA?

The 2025 property tax bill for 13 Flat Rock Rd, Petersham, MA was $5,295. The county assessed it at $365,400.

Closest homes

More homes in Petersham 01366

Assigned schools

Explore the area

See this home in context

Open 13 Flat Rock Rd on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map