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Single Family ResidenceResidential
$954,814$507 / 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
Last sold for $755,000 on Oct 31, 2019

6423 15TH ST

ALEXANDRIA, VA 22307
3
Beds
2
Baths
1,884 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
2
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$955K
$906K low$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.$755,000 · Oct 31, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,317 (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.$839,680 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$431,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$408,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$799,220
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$839,680

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.39 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.73%
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.Split Level
CountyFairfax
Lot (acres)The size of the land the home sits on, from county records.0.24
ConstructionThe main material the home's frame and walls are built from.Concrete Blocks
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Steam
CoolingThe type of cooling or air conditioning in the home.Yes
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 280 ft²Porch · 35 ft²

Transaction History(2)

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
Belle View Elementary SchoolB
Elementary · Grades PK–6 · 0.4 mi
H
West Potomac High SchoolC
High · Grades 9–12 · 0.7 mi
M
Sandburg Middle SchoolC+
Middle · Grades 7–8 · 3.3 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22307These 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.83
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
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.10,458
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,560 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$157,520
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$200,641
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.42 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

Owner Tools

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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

6423 15th 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 73% of homes in Belle Haven
  • Costs more per square foot than 74% of homes in Fairfax County
  • Bigger than 80% of homes in Belle Haven
  • Older than 94% of homes in Fairfax County

What homes are worth in Alexandria 22307

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

This home
$197K$2.1M

This home is worth more than 57% of homes in Alexandria 22307.

How it measures up in Alexandria 22307

The dot is this home. The mark in the middle is the typical home in Alexandria 22307.

Estimated value$954,814
CheaperTypical $882,944Pricier

Pricier than 57% of homes nearby

Price per ft²$507
CheaperTypical $503Pricier

Pricier than 50% of homes nearby

Living area1,884 ft²
SmallerTypical 1,280 ft²Bigger

Bigger than 75% of homes nearby

Lot size0.24 ac
SmallerTypical 0.23 acBigger

Bigger than 54% of homes nearby

Year built1952
OlderTypical 1953Newer

Newer than 48% of homes nearby

How 6423 15th St ranks against every home in each area.
MeasureThis homeBelle HavenAlexandria 22307Fairfax County
Estimated valuepricier than$954,81473% of homes57% of homes66% of homes
Price per ft²pricier than$50760% of homes50% of homes74% of homes
Living areabigger than1,884 ft²80% of homes75% of homes61% of homes
Lot sizebigger than0.24 ac58% of homes54% of homes51% of homes
Year builtnewer than195250% of homes48% of homes6% of homes

About 6423 15th St

How much is 6423 15th St, Alexandria, VA worth?

The TopHap Estimate for 6423 15th St, Alexandria, VA is $954,814 as of Jul 14, 2026. The likely range is $906,240 to $1,003,388. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6423 15th St, Alexandria, VA last sell?

6423 15th St, Alexandria, VA last sold on Oct 31, 2019 for $755,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 6423 15th St, Alexandria, VA?

6423 15th St, Alexandria, VA has 3 bedrooms, 2 bathrooms, 1,884 square feet of living space and a 0.24-acre lot.

When was 6423 15th St, Alexandria, VA built?

6423 15th St, Alexandria, VA was built in 1952, making it 74 years old. It is a split level home. The building has 2 stories.

What schools serve 6423 15th St, Alexandria, VA?

6423 15th St, Alexandria, VA is assigned to Belle View Elementary School (elementary), rated B; West Potomac High School (high), rated C; Sandburg Middle School (middle), rated C+. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6423 15th St, Alexandria, VA compare to other homes in Alexandria 22307?

Among the 4,590 homes in Alexandria 22307, it is worth more than 57% of them ($954,814 against a typical $882,944), its price per square foot is higher than 50% of them ($507 against a typical $503), it is bigger than 75% of them (1,884 ft² against a typical 1,280 ft²), its lot is bigger than 54% of them (0.24 ac against a typical 0.23 ac) and it is newer than 48% of them (1952 against a typical 1953). Measured against all of Fairfax County, it is worth more than 66% 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 6423 15th St, Alexandria, VA?

The 2025 property tax bill for 6423 15th St, Alexandria, VA was $10,317. The county assessed it at $839,680.

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