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Single Family ResidenceResidential
$1,395,495$324 / 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 Jul 14, 2026
Last sold for $470,000 on Aug 30, 1991

12 MOUNTAIN ROCK LN

NORFOLK, MA 02056
3
Beds
4 / 1
Baths
4,312 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.
5.55 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
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

$1.4M
$1.2M low$1.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$470,000 · Aug 30, 1991
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.$1,305,495
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$1,044,396
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.6%
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.$90,000
ZWI KOHORN · R · recorded Mar 26, 1993

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,712 (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.$1,171,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$259,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$912,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,152,800

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
CountyNorfolk
Lot (acres)The size of the land the home sits on, from county records.5.55
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
King Philip Regional Middle SchoolB-
Middle · Grades 7–8 · 0.9 mi
E
H Olive Day
Elementary · Grades PK–2 · 1.1 mi
H
King Philip Regional High SchoolB+
High · Grades 9–12 · 2.4 mi

District: King Philip School District

Neighborhood · ZIP 02056These 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.0
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.11,438
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.746 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$173,317
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$189,796
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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

12 Mountain Rock Ln 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 96% of homes in Norfolk 02056
  • Costs less per square foot than 90% of homes in Norfolk County
  • Bigger than 98% of homes in Norfolk 02056
  • Has a bigger lot than 97% of homes in Norfolk 02056
  • Newer than 80% of homes in Norfolk County

What homes are worth in Norfolk 02056

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

This home
$418K$1.6M

This home is worth more than 96% of homes in Norfolk 02056.

How it measures up in Norfolk 02056

The dot is this home. The mark in the middle is the typical home in Norfolk 02056.

Estimated value$1,395,495
CheaperTypical $807,920Pricier

Pricier than 96% of homes nearby

Price per ft²$324
CheaperTypical $383Pricier

Pricier than 13% of homes nearby

Living area4,312 ft²
SmallerTypical 2,146 ft²Bigger

Bigger than 98% of homes nearby

Lot size5.55 ac
SmallerTypical 0.93 acBigger

Bigger than 97% of homes nearby

Year built1988
OlderTypical 1984Newer

Newer than 62% of homes nearby

How 12 Mountain Rock Ln ranks against every home in each area.
MeasureThis homeNorfolk 02056Norfolk County
Estimated valuepricier than$1,395,49596% of homes86% of homes
Price per ft²pricier than$32413% of homes10% of homes
Living areabigger than4,312 ft²98% of homes96% of homes
Lot sizebigger than5.55 ac97% of homes94% of homes
Year builtnewer than198862% of homes80% of homes

About 12 Mountain Rock Ln

How much is 12 Mountain Rock Ln, Norfolk, MA worth?

The TopHap Estimate for 12 Mountain Rock Ln, Norfolk, MA is $1,395,495 as of Jul 14, 2026. The likely range is $1,247,700 to $1,543,290. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 Mountain Rock Ln, Norfolk, MA last sell?

12 Mountain Rock Ln, Norfolk, MA last sold on Aug 30, 1991 for $470,000, according to the county's recorded deed.

How big is 12 Mountain Rock Ln, Norfolk, MA?

12 Mountain Rock Ln, Norfolk, MA has 3 bedrooms, 4 bathrooms, 4,312 square feet of living space and a 5.55-acre lot.

When was 12 Mountain Rock Ln, Norfolk, MA built?

12 Mountain Rock Ln, Norfolk, MA was built in 1988, making it 38 years old. It is a colonial home. The building has 2 stories.

What schools serve 12 Mountain Rock Ln, Norfolk, MA?

12 Mountain Rock Ln, Norfolk, MA is assigned to King Philip Regional Middle School (middle), rated B-; H Olive Day (elementary); King Philip Regional High School (high), rated B+. All sit in King Philip School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Mountain Rock Ln, Norfolk, MA compare to other homes in Norfolk 02056?

Among the 3,646 homes in Norfolk 02056, it is worth more than 96% of them ($1,395,495 against a typical $807,920), its price per square foot is higher than 13% of them ($324 against a typical $383), it is bigger than 98% of them (4,312 ft² against a typical 2,146 ft²), its lot is bigger than 97% of them (5.55 ac against a typical 0.93 ac) and it is newer than 62% of them (1988 against a typical 1984). Measured against all of Norfolk County, it is worth more than 86% 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 Mountain Rock Ln, Norfolk, MA?

The 2025 property tax bill for 12 Mountain Rock Ln, Norfolk, MA was $18,712. The county assessed it at $1,171,700.

Closest homes

More homes in Norfolk 02056

Assigned schools

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