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Single Family ResidenceResidential
$1,028,190$794 / 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 95How 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

21 CIRCULAR AVE

FALMOUTH, MA 02540
3
Beds
2
Baths
1,295 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.
3,465 ft²
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
1
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

$1M
$981K low$1.1M high
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.$1,028,190
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$822,552

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,172 (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.$710,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$462,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$248,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$663,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,703,730

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.10 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.minimal

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.Conventional
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.1980
Lot (acres)The size of the land the home sits on, from county records.0.08
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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 · 0.9 mi
M
LawrenceC
Middle · Grades 7–8 · 1.1 mi
H
Falmouth High SchoolB
High · Grades 9–12 · 3.2 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%

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.Yes

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 Circular 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 72% of homes in Barnstable County
  • Costs more per square foot than 85% of homes in Barnstable County
  • Smaller than 83% of homes in Falmouth 02540
  • Among the smallest lots in Barnstable County
  • Older than 97% of homes in Falmouth 02540

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
$59K$4.3M

This home is worth more than 40% 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$1,028,190
CheaperTypical $1,138,239Pricier

Pricier than 40% of homes nearby

Price per ft²$794
CheaperTypical $594Pricier

Pricier than 79% of homes nearby

Living area1,295 ft²
SmallerTypical 2,012 ft²Bigger

Bigger than 17% of homes nearby

Lot size3,465 ft²
SmallerTypical 0.47 acBigger

Smaller than almost all homes nearby

Year built1890
OlderTypical 1970Newer

Newer than 3% of homes nearby

How 21 Circular Ave ranks against every home in each area.
MeasureThis homeFalmouth 02540Barnstable County
Estimated valuepricier than$1,028,19040% of homes72% of homes
Price per ft²pricier than$79479% of homes85% of homes
Living areabigger than1,295 ft²17% of homes34% of homes
Lot sizebigger than3,465 ft²almost no homesalmost no homes
Year builtnewer than18903% of homes3% of homes

About 21 Circular Ave

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

The TopHap Estimate for 21 Circular Ave, Falmouth, MA is $1,028,190 as of Jul 14, 2026. The likely range is $981,422 to $1,074,958. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

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

21 Circular Ave, Falmouth, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Circular Ave, Falmouth, MA?

21 Circular Ave, Falmouth, MA has 3 bedrooms, 2 bathrooms, 1,295 square feet of living space and a 0.08-acre lot.

When was 21 Circular Ave, Falmouth, MA built?

21 Circular Ave, Falmouth, MA was built in 1890, making it 136 years old. It is a conventional home. The building has 1 story.

What schools serve 21 Circular Ave, Falmouth, MA?

21 Circular 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 Circular Ave, Falmouth, MA compare to other homes in Falmouth 02540?

Among the 6,065 homes in Falmouth 02540, it is worth more than 40% of them ($1,028,190 against a typical $1,138,239), its price per square foot is higher than 79% of them ($794 against a typical $594), it is bigger than 17% of them (1,295 ft² against a typical 2,012 ft²), its lot is bigger than almost none of them (3,465 ft² against a typical 0.47 ac) and it is newer than 3% of them (1890 against a typical 1970). Measured against all of Barnstable County, it is worth more than 72% 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 Circular Ave, Falmouth, MA?

The 2025 property tax bill for 21 Circular Ave, Falmouth, MA was $4,172. The county assessed it at $710,800.

Closest homes

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Assigned schools

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