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Single Family ResidenceResidential
$795,866$582 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $775,000 on Dec 6, 2023

3909 PROSPERITY AVE

FAIRFAX, VA 22031
3
Beds
2
Baths
1,368 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.
0.63 ac
Lot SizeThe size of the land the home sits on, from county records.
1951
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$796K
$729K low$863K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$775,000 · Dec 6, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,271 (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.$801,970 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$445,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$356,970
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$753,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$801,970

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyFairfax
Lot (acres)The size of the land the home sits on, from county records.0.63
ConstructionThe main material the home's frame and walls are built from.Brick
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 140 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
Mantua Elementary SchoolA+
Elementary · Grades KG–6 · 0.9 mi
M
Frost Middle SchoolA+
Middle · Grades 7–8 · 1.5 mi
H
Woodson High SchoolA+
High · Grades 9–12 · 1.7 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22031These 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 100.37

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.95%
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.7.0%
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.35,639
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,082 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$129,988
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,633
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

3909 Prosperity 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.

  • Costs more per square foot than 91% of homes in Fairfax 22031
  • Smaller than 69% of homes in Fairfax 22031
  • Has a bigger lot than 90% of homes in Fairfax County
  • Older than 98% of homes in Fairfax 22031

What homes are worth in Fairfax 22031

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

This home
$233K$1.6M

This home is worth more than 55% of homes in Fairfax 22031.

How it measures up in Fairfax 22031

The dot is this home. The mark in the middle is the typical home in Fairfax 22031.

Estimated value$795,866
CheaperTypical $740,891Pricier

Pricier than 55% of homes nearby

Price per ft²$582
CheaperTypical $448Pricier

Pricier than 91% of homes nearby

Living area1,368 ft²
SmallerTypical 1,556 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.63 ac
SmallerTypical 0.14 acBigger

Bigger than 88% of homes nearby

Year built1951
OlderTypical 1976Newer

Newer than 2% of homes nearby

How 3909 Prosperity Ave ranks against every home in each area.
MeasureThis homeFairfax 22031Fairfax County
Estimated valuepricier than$795,86655% of homes53% of homes
Price per ft²pricier than$58291% of homes88% of homes
Living areabigger than1,368 ft²31% of homes33% of homes
Lot sizebigger than0.63 ac88% of homes90% of homes
Year builtnewer than19512% of homes4% of homes

About 3909 Prosperity Ave

How much is 3909 Prosperity Ave, Fairfax, VA worth?

The TopHap Estimate for 3909 Prosperity Ave, Fairfax, VA is $795,866 as of Oct 21, 2026. The likely range is $729,163 to $862,569. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3909 Prosperity Ave, Fairfax, VA last sell?

3909 Prosperity Ave, Fairfax, VA last sold on Dec 6, 2023 for $775,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 3909 Prosperity Ave, Fairfax, VA?

3909 Prosperity Ave, Fairfax, VA has 3 bedrooms, 2 bathrooms, 1,368 square feet of living space and a 0.63-acre lot.

When was 3909 Prosperity Ave, Fairfax, VA built?

3909 Prosperity Ave, Fairfax, VA was built in 1951, making it 75 years old. The building has 1 story.

What schools serve 3909 Prosperity Ave, Fairfax, VA?

3909 Prosperity Ave, Fairfax, VA is assigned to Mantua Elementary School (elementary), rated A+; Frost Middle School (middle), rated A+; Woodson High School (high), rated A+. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3909 Prosperity Ave, Fairfax, VA compare to other homes in Fairfax 22031?

Among the 9,008 homes in Fairfax 22031, it is worth more than 55% of them ($795,866 against a typical $740,891), its price per square foot is higher than 91% of them ($582 against a typical $448), it is bigger than 31% of them (1,368 ft² against a typical 1,556 ft²), its lot is bigger than 88% of them (0.63 ac against a typical 0.14 ac) and it is newer than 2% of them (1951 against a typical 1976). Measured against all of Fairfax County, it is worth more than 53% 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 3909 Prosperity Ave, Fairfax, VA?

The 2025 property tax bill for 3909 Prosperity Ave, Fairfax, VA was $9,271. The county assessed it at $801,970.

More homes on Prosperity Ave

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