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TownhouseResidential
$448,702$314 / 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 Aug 30, 2026

421 RENEAU WAY

HERNDON, VA 20170
3
Beds
3 / 1
Baths
1,428 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.
1,406 ft²
Lot SizeThe size of the land the home sits on, from county records.
1974
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

$449K
$427K low$470K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,989 (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.$420,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$150,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$270,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$375,560
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$420,000

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.Split Level
CountyFairfax
Lot (acres)The size of the land the home sits on, from county records.0.03
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.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
Herndon High SchoolD-
High · Grades 9–12 · 1.1 mi
M
Herndon Middle SchoolD
Middle · Grades 7–8 · 1.1 mi
E
Aldrin Elementary SchoolA
Elementary · Grades KG–6 · 2.0 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 20170These 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.68
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.98%
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.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.43,831
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,979 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$149,422
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$172,691
Average tempThe average temperature here across a full year.54°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

421 Reneau Way 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 less than 87% of homes in Fairfax County
  • Costs less per square foot than 91% of homes in Fairfax County
  • Has a smaller lot than 95% of homes in Herndon 20170
  • Older than 78% of homes in Herndon 20170

What homes are worth in Herndon 20170

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

This home
$281K$1.5M

This home is worth more than 17% of homes in Herndon 20170.

How it measures up in Herndon 20170

The dot is this home. The mark in the middle is the typical home in Herndon 20170.

Estimated value$448,702
CheaperTypical $683,665Pricier

Pricier than 17% of homes nearby

Price per ft²$314
CheaperTypical $366Pricier

Pricier than 17% of homes nearby

Living area1,428 ft²
SmallerTypical 1,652 ft²Bigger

Bigger than 38% of homes nearby

Lot size1,406 ft²
SmallerTypical 0.22 acBigger

Bigger than 5% of homes nearby

Year built1974
OlderTypical 1983Newer

Newer than 22% of homes nearby

How 421 Reneau Way ranks against every home in each area.
MeasureThis homeHerndonHerndon 20170Fairfax County
Estimated valuepricier than$448,70226% of homes17% of homes13% of homes
Price per ft²pricier than$31422% of homes17% of homes9% of homes
Living areabigger than1,428 ft²53% of homes38% of homes38% of homes
Lot sizebigger than1,406 ft²7% of homes5% of homes6% of homes
Year builtnewer than197431% of homes22% of homes37% of homes

About 421 Reneau Way

How much is 421 Reneau Way, Herndon, VA worth?

The TopHap Estimate for 421 Reneau Way, Herndon, VA is $448,702 as of Aug 30, 2026. The likely range is $426,984 to $470,420. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Reneau Way, Herndon, VA last sell?

421 Reneau Way, Herndon, VA last sold on Jan 28, 2004, according to the county's recorded deed.

How big is 421 Reneau Way, Herndon, VA?

421 Reneau Way, Herndon, VA has 3 bedrooms, 3 bathrooms, 1,428 square feet of living space and a 0.03-acre lot.

When was 421 Reneau Way, Herndon, VA built?

421 Reneau Way, Herndon, VA was built in 1974, making it 52 years old. It is a split level home. The building has 2 stories.

What schools serve 421 Reneau Way, Herndon, VA?

421 Reneau Way, Herndon, VA is assigned to Herndon High School (high), rated D-; Herndon Middle School (middle), rated D; Aldrin Elementary School (elementary), rated A. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Reneau Way, Herndon, VA compare to other homes in Herndon 20170?

Among the 11,451 homes in Herndon 20170, it is worth more than 17% of them ($448,702 against a typical $683,665), its price per square foot is higher than 17% of them ($314 against a typical $366), it is bigger than 38% of them (1,428 ft² against a typical 1,652 ft²), its lot is bigger than 5% of them (1,406 ft² against a typical 0.22 ac) and it is newer than 22% of them (1974 against a typical 1983). Measured against all of Fairfax County, it is worth more than 13% 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 421 Reneau Way, Herndon, VA?

The 2025 property tax bill for 421 Reneau Way, Herndon, VA was $5,989. The county assessed it at $420,000.

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