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TownhouseResidential
$759,186$474 / 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 Oct 21, 2026
Last sold for $665,000 on Apr 20, 2021

4123 RIVER FORTH DR

FAIRFAX, VA 22030
3
Beds
3 / 2
Baths
1,600 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.
2,204 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.
2
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.

Valuation

$759K
$743K low$775K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$665,000 · Apr 20, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,186 (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.$708,120 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$215,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$493,120
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$654,080
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$708,120

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.Bi-Level
CountyFAIRFAX
Lot (acres)The size of the land the home sits on, from county records.0.05
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.Yes
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, Basement
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.Buildable
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 224 ft²Patio · 28 ft²

Transaction History(4)

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.

M
Katherine Johnson Middle SchoolB+
Middle · Grades 7–8 · 1.1 mi
E
Willow Springs Elementary SchoolA+
Elementary · Grades KG–6 · 2.4 mi
H
Fairfax High SchoolB+
High · Grades 9–12 · 3.2 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22030These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.9%
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.59,579
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,152 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,648
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$165,996
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

4123 River Forth 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.

  • Costs more per square foot than 78% of homes in Fairfax 22030
  • Has a smaller lot than 80% of homes in Fairfax 22030
  • Newer than 88% of homes in Fairfax County

What homes are worth in Fairfax 22030

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

This home
$287K$1.6M

This home is worth more than 40% of homes in Fairfax 22030.

How it measures up in Fairfax 22030

The dot is this home. The mark in the middle is the typical home in Fairfax 22030.

Estimated value$759,186
CheaperTypical $809,882Pricier

Pricier than 40% of homes nearby

Price per ft²$474
CheaperTypical $405Pricier

Pricier than 78% of homes nearby

Living area1,600 ft²
SmallerTypical 1,904 ft²Bigger

Bigger than 37% of homes nearby

Lot size2,204 ft²
SmallerTypical 0.24 acBigger

Bigger than 20% of homes nearby

Year built2002
OlderTypical 1988Newer

Newer than 74% of homes nearby

How 4123 River Forth Dr ranks against every home in each area.
MeasureThis homeFairfax 22030Fairfax County
Estimated valuepricier than$759,18640% of homes49% of homes
Price per ft²pricier than$47478% of homes68% of homes
Living areabigger than1,600 ft²37% of homes48% of homes
Lot sizebigger than2,204 ft²20% of homes21% of homes
Year builtnewer than200274% of homes88% of homes

About 4123 River Forth Dr

How much is 4123 River Forth Dr, Fairfax, VA worth?

The TopHap Estimate for 4123 River Forth Dr, Fairfax, VA is $759,186 as of Oct 21, 2026. The likely range is $742,878 to $775,494. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4123 River Forth Dr, Fairfax, VA last sell?

4123 River Forth Dr, Fairfax, VA last sold on Apr 20, 2021 for $665,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4123 River Forth Dr, Fairfax, VA?

4123 River Forth Dr, Fairfax, VA has 3 bedrooms, 3 bathrooms, 1,600 square feet of living space and a 0.05-acre lot.

When was 4123 River Forth Dr, Fairfax, VA built?

4123 River Forth Dr, Fairfax, VA was built in 2002, making it 24 years old. It is a bi-level home. The building has 2 stories.

What schools serve 4123 River Forth Dr, Fairfax, VA?

4123 River Forth Dr, Fairfax, VA is assigned to Katherine Johnson Middle School (middle), rated B+; Willow Springs Elementary School (elementary), rated A+; Fairfax High School (high), rated B+. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4123 River Forth Dr, Fairfax, VA compare to other homes in Fairfax 22030?

Among the 15,043 homes in Fairfax 22030, it is worth more than 40% of them ($759,186 against a typical $809,882), its price per square foot is higher than 78% of them ($474 against a typical $405), it is bigger than 37% of them (1,600 ft² against a typical 1,904 ft²), its lot is bigger than 20% of them (2,204 ft² against a typical 0.24 ac) and it is newer than 74% of them (2002 against a typical 1988). Measured against all of Fairfax County, it is worth more than 49% 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 4123 River Forth Dr, Fairfax, VA?

The 2025 property tax bill for 4123 River Forth Dr, Fairfax, VA was $8,186. The county assessed it at $708,120.

More homes on River Forth Dr

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