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Single Family ResidenceResidential
$831,317$264 / 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 90How 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 $245,000 on May 12, 2000

9517 4TH PL

LORTON, VA 22079
4
Beds
4 / 1
Baths
3,144 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
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.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$831K
$751K low$911K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$245,000 · May 12, 2000

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$711,430 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$364,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$347,430
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$678,430
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$711,430

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.0.51
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
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.Mixed
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.Deck · 312 ft²Patio · 312 ft²Porch · 279 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
South County High SchoolB+
High · Grades 9–12 · 1.3 mi
M
South County Middle SchoolA
Middle · Grades 7–8 · 1.7 mi
E
Halley Elementary SchoolC+
Elementary · Grades PK–6 · 2.0 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22079These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.6%
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.36,116
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,051 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,916
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,822
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%

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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

9517 4th Pl 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 69% of homes in Lorton 22079
  • Costs less per square foot than 97% of homes in Fairfax County
  • Bigger than 87% of homes in Fairfax County
  • Has a bigger lot than 86% of homes in Lorton 22079
  • Older than 97% of homes in Lorton 22079

What homes are worth in Lorton 22079

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

This home
$261K$1.5M

This home is worth more than 69% of homes in Lorton 22079.

How it measures up in Lorton 22079

The dot is this home. The mark in the middle is the typical home in Lorton 22079.

Estimated value$831,317
CheaperTypical $662,196Pricier

Pricier than 69% of homes nearby

Price per ft²$264
CheaperTypical $354Pricier

Pricier than 6% of homes nearby

Living area3,144 ft²
SmallerTypical 1,760 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.51 ac
SmallerTypical 3,746 ft²Bigger

Bigger than 86% of homes nearby

Year built1954
OlderTypical 1995Newer

Newer than 3% of homes nearby

How 9517 4th Pl ranks against every home in each area.
MeasureThis homeLorton 22079Fairfax County
Estimated valuepricier than$831,31769% of homes57% of homes
Price per ft²pricier than$2646% of homes3% of homes
Living areabigger than3,144 ft²84% of homes87% of homes
Lot sizebigger than0.51 ac86% of homes85% of homes
Year builtnewer than19543% of homes7% of homes

About 9517 4th Pl

How much is 9517 4th Pl, Lorton, VA worth?

The TopHap Estimate for 9517 4th Pl, Lorton, VA is $831,317 as of Oct 21, 2026. The likely range is $751,218 to $911,416. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9517 4th Pl, Lorton, VA last sell?

9517 4th Pl, Lorton, VA last sold on May 12, 2000 for $245,000, according to the county's recorded deed.

How big is 9517 4th Pl, Lorton, VA?

9517 4th Pl, Lorton, VA has 4 bedrooms, 4 bathrooms, 3,144 square feet of living space and a 0.51-acre lot.

When was 9517 4th Pl, Lorton, VA built?

9517 4th Pl, Lorton, VA was built in 1954, making it 72 years old. It is a split level home. The building has 2 stories.

What schools serve 9517 4th Pl, Lorton, VA?

9517 4th Pl, Lorton, VA is assigned to South County High School (high), rated B+; South County Middle School (middle), rated A; Halley Elementary School (elementary), rated C+. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9517 4th Pl, Lorton, VA compare to other homes in Lorton 22079?

Among the 10,270 homes in Lorton 22079, it is worth more than 69% of them ($831,317 against a typical $662,196), its price per square foot is higher than 6% of them ($264 against a typical $354), it is bigger than 84% of them (3,144 ft² against a typical 1,760 ft²), its lot is bigger than 86% of them (0.51 ac against a typical 3,746 ft²) and it is newer than 3% of them (1954 against a typical 1995). Measured against all of Fairfax County, it is worth more than 57% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

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