Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,142,980$386 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

11921 RIDERS LN

RESTON, VA 20191
4
Beds
4 / 2
Baths
2,960 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.
0.39 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$1.1M low$1.2M high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$990,860
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$792,688
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.13%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$152,120
BANK OF AMERICA · recorded Apr 29, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,197 (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.$968,620 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$373,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$595,620
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$879,270
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$968,620

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.0.39
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.Wood 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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.Patio · 120 ft²Porch · 352 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
Crossfield Elementary SchoolA+
Elementary · Grades PK–6 · 0.4 mi
H
South Lakes High SchoolC
High · Grades 9–12 · 1.4 mi
M
Hughes Middle SchoolA-
Middle · Grades 7–8 · 1.5 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 20191These 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.97
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 100.40

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.30,650
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,674 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,723
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$166,233
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

11921 Riders Ln 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 92% of homes in Reston 20191
  • Costs less per square foot than 70% of homes in Fairfax County
  • Bigger than 96% of homes in Reston 20191
  • Has a bigger lot than 79% of homes in Reston 20191

What homes are worth in Reston 20191

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

This home
$270K$1.4M

This home is worth more than 92% of homes in Reston 20191.

How it measures up in Reston 20191

The dot is this home. The mark in the middle is the typical home in Reston 20191.

Estimated value$1,142,980
CheaperTypical $664,632Pricier

Pricier than 92% of homes nearby

Price per ft²$386
CheaperTypical $433Pricier

Pricier than 32% of homes nearby

Living area2,960 ft²
SmallerTypical 1,452 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.39 ac
SmallerTypical 2,831 ft²Bigger

Bigger than 79% of homes nearby

Year built1978
OlderTypical 1976Newer

Newer than 63% of homes nearby

How 11921 Riders Ln ranks against every home in each area.
MeasureThis homeReston 20191Fairfax County
Estimated valuepricier than$1,142,98092% of homes80% of homes
Price per ft²pricier than$38632% of homes30% of homes
Living areabigger than2,960 ft²96% of homes84% of homes
Lot sizebigger than0.39 ac79% of homes78% of homes
Year builtnewer than197863% of homes44% of homes

About 11921 Riders Ln

How much is 11921 Riders Ln, Reston, VA worth?

The TopHap Estimate for 11921 Riders Ln, Reston, VA is $1,142,980 as of Jul 14, 2026. The likely range is $1,078,091 to $1,207,869. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 11921 Riders Ln, Reston, VA?

11921 Riders Ln, Reston, VA has 4 bedrooms, 4 bathrooms, 2,960 square feet of living space and a 0.39-acre lot.

When was 11921 Riders Ln, Reston, VA built?

11921 Riders Ln, Reston, VA was built in 1978, making it 48 years old. It is a split level home. The building has 2 stories.

What schools serve 11921 Riders Ln, Reston, VA?

11921 Riders Ln, Reston, VA is assigned to Crossfield Elementary School (elementary), rated A+; South Lakes High School (high), rated C; Hughes Middle School (middle), rated A-. All sit in Fairfax County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11921 Riders Ln, Reston, VA compare to other homes in Reston 20191?

Among the 10,547 homes in Reston 20191, it is worth more than 92% of them ($1,142,980 against a typical $664,632), its price per square foot is higher than 32% of them ($386 against a typical $433), it is bigger than 96% of them (2,960 ft² against a typical 1,452 ft²), its lot is bigger than 79% of them (0.39 ac against a typical 2,831 ft²) and it is newer than 63% of them (1978 against a typical 1976). Measured against all of Fairfax County, it is worth more than 80% 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 11921 Riders Ln, Reston, VA?

The 2025 property tax bill for 11921 Riders Ln, Reston, VA was $11,197. The county assessed it at $968,620.

More homes on Riders Ln

Closest homes

More homes in Reston 20191

Assigned schools

Explore the area

See this home in context

Open 11921 Riders Ln 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