Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,466,099$469 / 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 83How 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 $950,000 on Nov 5, 2021

4739 NEPTUNE DR

ALEXANDRIA, VA 22309
4
Beds
4 / 1
Baths
3,124 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.
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1964
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.5M
$1.2M low$1.7M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$950,000 · Nov 5, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,490 (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.$1,166,960 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$532,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$634,960
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,111,720
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,166,960

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.26 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.Split Level
CountyFairfax
Lot (acres)The size of the land the home sits on, from county records.0.50
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Average
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.BalconyPorch · 209 ft²

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
Washington Mill Elementary SchoolD
Elementary · Grades PK–6 · 0.9 mi
H
Mount Vernon High SchoolD
High · Grades 9–12 · 2.2 mi
M
Whitman Middle SchoolD
Middle · Grades 7–8 · 3.6 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22309These 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.110
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.33

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.33,789
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,090 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,346
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$150,974
Average tempThe average temperature here across a full year.56°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%

Owner Tools

Do you own this home?
Claim this home

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

4739 Neptune Dr 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 22309
  • Costs more per square foot than 78% of homes in Alexandria 22309
  • Bigger than 92% of homes in Alexandria 22309
  • Has a bigger lot than 84% of homes in Alexandria 22309
  • Older than 82% of homes in Fairfax County

What homes are worth in Alexandria 22309

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

This home
$214K$1.6M

This home is worth more than 97% of homes in Alexandria 22309.

How it measures up in Alexandria 22309

The dot is this home. The mark in the middle is the typical home in Alexandria 22309.

Estimated value$1,466,099
CheaperTypical $570,241Pricier

Pricier than 97% of homes nearby

Price per ft²$469
CheaperTypical $365Pricier

Pricier than 78% of homes nearby

Living area3,124 ft²
SmallerTypical 1,408 ft²Bigger

Bigger than 92% of homes nearby

Lot size0.5 ac
SmallerTypical 0.29 acBigger

Bigger than 84% of homes nearby

Year built1964
OlderTypical 1972Newer

Newer than 30% of homes nearby

How 4739 Neptune Dr ranks against every home in each area.
MeasureThis homeAlexandria 22309Fairfax County
Estimated valuepricier than$1,466,09997% of homes91% of homes
Price per ft²pricier than$46978% of homes66% of homes
Living areabigger than3,124 ft²92% of homes86% of homes
Lot sizebigger than0.5 ac84% of homes84% of homes
Year builtnewer than196430% of homes18% of homes

About 4739 Neptune Dr

How much is 4739 Neptune Dr, Alexandria, VA worth?

The TopHap Estimate for 4739 Neptune Dr, Alexandria, VA is $1,466,099 as of Sep 24, 2026. The likely range is $1,222,644 to $1,709,554. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4739 Neptune Dr, Alexandria, VA last sell?

4739 Neptune Dr, Alexandria, VA last sold on Nov 5, 2021 for $950,000, according to the county's recorded deed.

How big is 4739 Neptune Dr, Alexandria, VA?

4739 Neptune Dr, Alexandria, VA has 4 bedrooms, 4 bathrooms, 3,124 square feet of living space and a 0.50-acre lot.

When was 4739 Neptune Dr, Alexandria, VA built?

4739 Neptune Dr, Alexandria, VA was built in 1964, making it 62 years old. It is a split level home. The building has 2 stories.

What schools serve 4739 Neptune Dr, Alexandria, VA?

4739 Neptune Dr, Alexandria, VA is assigned to Washington Mill Elementary School (elementary), rated D; Mount Vernon High School (high), rated D; Whitman Middle School (middle), rated D. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4739 Neptune Dr, Alexandria, VA compare to other homes in Alexandria 22309?

Among the 9,270 homes in Alexandria 22309, it is worth more than 97% of them ($1,466,099 against a typical $570,241), its price per square foot is higher than 78% of them ($469 against a typical $365), it is bigger than 92% of them (3,124 ft² against a typical 1,408 ft²), its lot is bigger than 84% of them (0.5 ac against a typical 0.29 ac) and it is newer than 30% of them (1964 against a typical 1972). Measured against all of Fairfax County, it is worth more than 91% 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 4739 Neptune Dr, Alexandria, VA?

The 2025 property tax bill for 4739 Neptune Dr, Alexandria, VA was $13,490. The county assessed it at $1,166,960.

More homes on Neptune Dr

Closest homes

More homes in Alexandria 22309

Assigned schools

Explore the area

See this home in context

Open 4739 Neptune Dr on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map