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Single Family ResidenceResidential
$1,194,686$878 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $743,330 on Jan 7, 2021

21 AMHERST AVE

FALMOUTH, MA 02540
4
Beds
1
Baths
1,360 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.
3,829 ft²
Lot SizeThe size of the land the home sits on, from county records.
1946
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.2M
$1.1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$743,330 · Jan 7, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,198 (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.$1,055,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$691,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$364,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$961,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,098,105

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.32 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.84%
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.1 percent flood zone

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
CountyBARNSTABLE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2015
Lot (acres)The size of the land the home sits on, from county records.0.09
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.Baseboard
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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
Mullen-HallC-
Elementary · Grades KG–4 · 1.2 mi
M
LawrenceC
Middle · Grades 7–8 · 1.4 mi
H
Falmouth High SchoolB
High · Grades 9–12 · 3.1 mi

District: Falmouth School District

Neighborhood · ZIP 02540These 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.127
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.49

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.67%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
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.9,084
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.691 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,017
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,996
Average tempThe average temperature here across a full year.50°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.58%

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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

21 Amherst Ave 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 80% of homes in Barnstable County
  • Costs more per square foot than 89% of homes in Barnstable County
  • Smaller than 80% of homes in Falmouth 02540
  • Among the smallest lots in Barnstable County
  • Older than 89% of homes in Barnstable County

What homes are worth in Falmouth 02540

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

This home
$57K$4.2M

This home is worth more than 56% of homes in Falmouth 02540.

How it measures up in Falmouth 02540

The dot is this home. The mark in the middle is the typical home in Falmouth 02540.

Estimated value$1,194,686
CheaperTypical $1,113,938Pricier

Pricier than 56% of homes nearby

Price per ft²$878
CheaperTypical $586Pricier

Pricier than 85% of homes nearby

Living area1,360 ft²
SmallerTypical 2,016 ft²Bigger

Bigger than 20% of homes nearby

Lot size3,829 ft²
SmallerTypical 0.47 acBigger

Bigger than 2% of homes nearby

Year built1946
OlderTypical 1970Newer

Newer than 22% of homes nearby

How 21 Amherst Ave ranks against every home in each area.
MeasureThis homeFalmouth 02540Barnstable County
Estimated valuepricier than$1,194,68656% of homes80% of homes
Price per ft²pricier than$87885% of homes89% of homes
Living areabigger than1,360 ft²20% of homes38% of homes
Lot sizebigger than3,829 ft²2% of homesalmost no homes
Year builtnewer than194622% of homes11% of homes

About 21 Amherst Ave

How much is 21 Amherst Ave, Falmouth, MA worth?

The TopHap Estimate for 21 Amherst Ave, Falmouth, MA is $1,194,686 as of Aug 30, 2026. The likely range is $1,149,096 to $1,240,276. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Amherst Ave, Falmouth, MA last sell?

21 Amherst Ave, Falmouth, MA last sold on Jan 7, 2021 for $743,330, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Amherst Ave, Falmouth, MA?

21 Amherst Ave, Falmouth, MA has 4 bedrooms, 1 bathrooms, 1,360 square feet of living space and a 0.09-acre lot.

When was 21 Amherst Ave, Falmouth, MA built?

21 Amherst Ave, Falmouth, MA was built in 1946, making it 80 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Amherst Ave, Falmouth, MA?

21 Amherst Ave, Falmouth, MA is assigned to Mullen-Hall (elementary), rated C-; Lawrence (middle), rated C; Falmouth High School (high), rated B. All sit in Falmouth School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Amherst Ave, Falmouth, MA compare to other homes in Falmouth 02540?

Among the 6,065 homes in Falmouth 02540, it is worth more than 56% of them ($1,194,686 against a typical $1,113,938), its price per square foot is higher than 85% of them ($878 against a typical $586), it is bigger than 20% of them (1,360 ft² against a typical 2,016 ft²), its lot is bigger than 2% of them (3,829 ft² against a typical 0.47 ac) and it is newer than 22% of them (1946 against a typical 1970). Measured against all of Barnstable County, it is worth more than 80% 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 21 Amherst Ave, Falmouth, MA?

The 2025 property tax bill for 21 Amherst Ave, Falmouth, MA was $6,198. The county assessed it at $1,055,900.

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