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TownhouseResidential
$2,142,078$747 / 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 98How 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 $1,195,000 on Oct 1, 2010

721 S UNION ST

ALEXANDRIA, VA 22314
4
Beds
4.5
Baths
2,866 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.
1,146 ft²
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
3
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$2.1M
$2.1M low$2.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,195,000 · Oct 1, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$20,215 (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.$1,960,320 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,099,428
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$860,892
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,768,752
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,960,320

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.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.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.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyALEXANDRIA CITY
Lot (acres)The size of the land the home sits on, from county records.0.03
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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(3)

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
Lyles-Crouch Elementary SchoolA-
Elementary · Grades KG–5 · 0.3 mi
M
George Washington Middle SchoolC+
Middle · Grades 6–8 · 1.5 mi
H
Alexandria City High SchoolD
High · Grades 9–12 · 3.0 mi

District: Alexandria City Public Schools

Neighborhood · ZIP 22314These 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.109
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 100.39

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.35,025
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,819 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$143,754
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$182,827
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

721 S Union St 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 97% of homes in Alexandria city County
  • Costs more per square foot than 92% of homes in Alexandria city County
  • Bigger than 91% of homes in Alexandria 22314
  • Has a smaller lot than 80% of homes in Old Town
  • Newer than 95% of homes in Old Town

What homes are worth in Alexandria 22314

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

This home
$238K$3M

This home is worth more than 95% of homes in Alexandria 22314.

How it measures up in Alexandria 22314

The dot is this home. The mark in the middle is the typical home in Alexandria 22314.

Estimated value$2,142,078
CheaperTypical $878,545Pricier

Pricier than 95% of homes nearby

Price per ft²$747
CheaperTypical $599Pricier

Pricier than 80% of homes nearby

Living area2,866 ft²
SmallerTypical 1,392 ft²Bigger

Bigger than 91% of homes nearby

Lot size1,146 ft²
SmallerTypical 1,525 ft²Bigger

Bigger than 30% of homes nearby

Year built2002
OlderTypical 1980Newer

Newer than 74% of homes nearby

How 721 S Union St ranks against every home in each area.
MeasureThis homeOld TownAlexandria 22314Alexandria city County
Estimated valuepricier than$2,142,07888% of homes95% of homes97% of homes
Price per ft²pricier than$74760% of homes80% of homes92% of homes
Living areabigger than2,866 ft²85% of homes91% of homes91% of homes
Lot sizebigger than1,146 ft²20% of homes30% of homes24% of homes
Year builtnewer than200295% of homes74% of homes84% of homes

About 721 S Union St

How much is 721 S Union St, Alexandria, VA worth?

The TopHap Estimate for 721 S Union St, Alexandria, VA is $2,142,078 as of Sep 24, 2026. The likely range is $2,090,316 to $2,193,840. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 721 S Union St, Alexandria, VA last sell?

721 S Union St, Alexandria, VA last sold on Oct 1, 2010 for $1,195,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 721 S Union St, Alexandria, VA?

721 S Union St, Alexandria, VA has 4 bedrooms, 4.5 bathrooms, 2,866 square feet of living space and a 0.03-acre lot.

When was 721 S Union St, Alexandria, VA built?

721 S Union St, Alexandria, VA was built in 2002, making it 24 years old. It is a townhouse home. The building has 3 stories.

What schools serve 721 S Union St, Alexandria, VA?

721 S Union St, Alexandria, VA is assigned to Lyles-Crouch Elementary School (elementary), rated A-; George Washington Middle School (middle), rated C+; Alexandria City High School (high), rated D. All sit in Alexandria City Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 721 S Union St, Alexandria, VA compare to other homes in Alexandria 22314?

Among the 14,179 homes in Alexandria 22314, it is worth more than 95% of them ($2,142,078 against a typical $878,545), its price per square foot is higher than 80% of them ($747 against a typical $599), it is bigger than 91% of them (2,866 ft² against a typical 1,392 ft²), its lot is bigger than 30% of them (1,146 ft² against a typical 1,525 ft²) and it is newer than 74% of them (2002 against a typical 1980). Measured against all of Alexandria city County, it is worth more than 97% 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 721 S Union St, Alexandria, VA?

The 2025 property tax bill for 721 S Union St, Alexandria, VA was $20,215. The county assessed it at $1,960,320.

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