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Single Family ResidenceResidential
$999,591$407 / 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 93How 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 $477,500 on Sep 8, 2010

100 AARON RIVER RD

COHASSET, MA 02025
4
Beds
4.5
Baths
2,455 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.
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1000K
$929K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$477,500 · Sep 8, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,866 (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.$852,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$431,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$420,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$770,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$919,410

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.0.30
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(13)

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
Cohasset Middle SchoolA
Middle · Grades 6–8 · 2.0 mi
H
Cohasset High SchoolA
High · Grades 9–12 · 2.0 mi
E
Joseph Osgood
Elementary · Grades PK–2 · 2.3 mi

District: Cohasset School District

Neighborhood · ZIP 02025These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.72

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.6,803
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.623 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$165,682
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$243,848
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

100 Aaron River 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.

  • Worth less than 74% of homes in Cohasset 02025
  • Costs less per square foot than 79% of homes in Cohasset 02025
  • Bigger than 77% of homes in Norfolk County
  • Has a smaller lot than 86% of homes in Cohasset 02025
  • Newer than 76% of homes in Cohasset 02025

What homes are worth in Cohasset 02025

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

This home
$576K$4.6M

This home is worth more than 26% of homes in Cohasset 02025.

How it measures up in Cohasset 02025

The dot is this home. The mark in the middle is the typical home in Cohasset 02025.

Estimated value$999,591
CheaperTypical $1,399,710Pricier

Pricier than 26% of homes nearby

Price per ft²$407
CheaperTypical $496Pricier

Pricier than 21% of homes nearby

Living area2,455 ft²
SmallerTypical 2,827 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.3 ac
SmallerTypical 0.59 acBigger

Bigger than 14% of homes nearby

Year built1985
OlderTypical 1960Newer

Newer than 76% of homes nearby

How 100 Aaron River Rd ranks against every home in each area.
MeasureThis homeCohasset 02025Norfolk County
Estimated valuepricier than$999,59126% of homes73% of homes
Price per ft²pricier than$40721% of homes37% of homes
Living areabigger than2,455 ft²38% of homes77% of homes
Lot sizebigger than0.3 ac14% of homes43% of homes
Year builtnewer than198576% of homes75% of homes

About 100 Aaron River Rd

How much is 100 Aaron River Rd, Cohasset, MA worth?

The TopHap Estimate for 100 Aaron River Rd, Cohasset, MA is $999,591 as of Sep 24, 2026. The likely range is $929,239 to $1,069,943. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 Aaron River Rd, Cohasset, MA last sell?

100 Aaron River Rd, Cohasset, MA last sold on Sep 8, 2010 for $477,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 100 Aaron River Rd, Cohasset, MA?

100 Aaron River Rd, Cohasset, MA has 4 bedrooms, 4.5 bathrooms, 2,455 square feet of living space and a 0.30-acre lot.

When was 100 Aaron River Rd, Cohasset, MA built?

100 Aaron River Rd, Cohasset, MA was built in 1985, making it 41 years old. It is a colonial home. The building has 2 stories.

What schools serve 100 Aaron River Rd, Cohasset, MA?

100 Aaron River Rd, Cohasset, MA is assigned to Cohasset Middle School (middle), rated A; Cohasset High School (high), rated A; Joseph Osgood (elementary). All sit in Cohasset School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 Aaron River Rd, Cohasset, MA compare to other homes in Cohasset 02025?

Among the 2,836 homes in Cohasset 02025, it is worth more than 26% of them ($999,591 against a typical $1,399,710), its price per square foot is higher than 21% of them ($407 against a typical $496), it is bigger than 38% of them (2,455 ft² against a typical 2,827 ft²), its lot is bigger than 14% of them (0.3 ac against a typical 0.59 ac) and it is newer than 76% of them (1985 against a typical 1960). Measured against all of Norfolk County, it is worth more than 73% 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 100 Aaron River Rd, Cohasset, MA?

The 2025 property tax bill for 100 Aaron River Rd, Cohasset, MA was $9,866. The county assessed it at $852,000.

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