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CondominiumResidential
$374,894$386 / 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 Aug 30, 2026
Last sold for $150,000 on Aug 26, 2008

21666 CALAMARY CIR

STERLING, VA 20164
2
Beds
1
Baths
970 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.
1989
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$375K
$358K low$392K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Aug 26, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,863 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$355,680 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$100,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$255,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$355,220
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$355,680

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.41
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
78
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
78
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
34
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.1 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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyLOUDOUN
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.2000
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Shed · 30 ft²Patio · 108 ft²

Transaction History(4)

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
Rolling Ridge Elementary SchoolD
Elementary · Grades PK–5 · 0.2 mi
H
Park View High SchoolF
High · Grades 9–12 · 1.0 mi
M
Sterling Middle SchoolF
Middle · Grades 6–8 · 1.7 mi

District: Loudoun County Public Schools

Neighborhood · ZIP 20164These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.9%
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.44,608
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,821 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$120,134
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,041
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

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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

21666 Calamary Cir 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 97% of homes in Loudoun County
  • Costs more per square foot than 91% of homes in Loudoun County
  • Smaller than 98% of homes in Loudoun County
  • Newer than 80% of homes in Sterling 20164

What homes are worth in Sterling 20164

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

This home
$311K$928K

This home is worth more than 8% of homes in Sterling 20164.

How it measures up in Sterling 20164

The dot is this home. The mark in the middle is the typical home in Sterling 20164.

Estimated value$374,894
CheaperTypical $592,185Pricier

Pricier than 8% of homes nearby

Price per ft²$386
CheaperTypical $325Pricier

Pricier than 81% of homes nearby

Living area970 ft²
SmallerTypical 1,736 ft²Bigger

Bigger than 3% of homes nearby

Year built1989
OlderTypical 1977Newer

Newer than 80% of homes nearby

How 21666 Calamary Cir ranks against every home in each area.
MeasureThis homeSterling 20164Loudoun County
Estimated valuepricier than$374,8948% of homes3% of homes
Price per ft²pricier than$38681% of homes91% of homes
Living areabigger than970 ft²3% of homes2% of homes
Year builtnewer than198980% of homes20% of homes

About 21666 Calamary Cir

How much is 21666 Calamary Cir, Sterling, VA worth?

The TopHap Estimate for 21666 Calamary Cir, Sterling, VA is $374,894 as of Aug 30, 2026. The likely range is $357,729 to $392,059. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21666 Calamary Cir, Sterling, VA last sell?

21666 Calamary Cir, Sterling, VA last sold on Aug 26, 2008 for $150,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 21666 Calamary Cir, Sterling, VA?

21666 Calamary Cir, Sterling, VA has 2 bedrooms, 1 bathrooms and 970 square feet of living space.

When was 21666 Calamary Cir, Sterling, VA built?

21666 Calamary Cir, Sterling, VA was built in 1989, making it 37 years old. It is a townhouse home. The building has 2 stories.

What schools serve 21666 Calamary Cir, Sterling, VA?

21666 Calamary Cir, Sterling, VA is assigned to Rolling Ridge Elementary School (elementary), rated D; Park View High School (high), rated F; Sterling Middle School (middle), rated F. All sit in Loudoun County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21666 Calamary Cir, Sterling, VA compare to other homes in Sterling 20164?

Among the 12,131 homes in Sterling 20164, it is worth more than 8% of them ($374,894 against a typical $592,185), its price per square foot is higher than 81% of them ($386 against a typical $325), it is bigger than 3% of them (970 ft² against a typical 1,736 ft²) and it is newer than 80% of them (1989 against a typical 1977). Measured against all of Loudoun County, it is worth more than 3% 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 21666 Calamary Cir, Sterling, VA?

The 2026 property tax bill for 21666 Calamary Cir, Sterling, VA was $2,863. The county assessed it at $355,680.

More homes on Calamary Cir

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