Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$2,109,506$614 / 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 88How 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
Last sold for $1,250,000 on Apr 6, 2004

9420 CORNWELL FARM DR

GREAT FALLS, VA 22066
4
Beds
3
Baths
3,434 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.
5.82 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
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

$2.1M
$1.8M low$2.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,250,000 · Apr 6, 2004
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.$209,506
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$167,605
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.95%
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.$750,000
WELLS FARGO BANK · recorded Mar 30, 2007
2nd 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.$650,000
UNITED NATIONS FCU
3rd 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.$500,000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$17,772 (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.$1,537,370 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$930,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$607,370
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,470,010
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,537,370

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.5.82
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.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.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.StableDeck · 300 ft²Shed · 336 ft²Patio · 300 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
Great Falls Elementary SchoolA+
Elementary · Grades PK–6 · 1.2 mi
M
Cooper Middle SchoolA+
Middle · Grades 7–8 · 5.2 mi
H
Langley High SchoolA+
High · Grades 9–12 · 6.5 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22066These 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.45
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.35

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.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.9%
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.18,712
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.706 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$238,115
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$308,878
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.42 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

9420 Cornwell Farm 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.

  • Worth more than 97% of homes in Fairfax County
  • Costs more per square foot than 90% of homes in Fairfax County
  • Bigger than 90% of homes in Fairfax County
  • Among the largest lots in Fairfax County
  • Older than 74% of homes in Great Falls 22066

What homes are worth in Great Falls 22066

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

This home
$843K$4.4M

This home is worth more than 70% of homes in Great Falls 22066.

How it measures up in Great Falls 22066

The dot is this home. The mark in the middle is the typical home in Great Falls 22066.

Estimated value$2,109,506
CheaperTypical $1,718,327Pricier

Pricier than 70% of homes nearby

Price per ft²$614
CheaperTypical $487Pricier

Pricier than 82% of homes nearby

Living area3,434 ft²
SmallerTypical 3,584 ft²Bigger

Bigger than 47% of homes nearby

Lot size5.82 ac
SmallerTypical 1.19 acBigger

Bigger than 98% of homes nearby

Year built1977
OlderTypical 1985Newer

Newer than 26% of homes nearby

How 9420 Cornwell Farm Dr ranks against every home in each area.
MeasureThis homeGreat Falls 22066Fairfax County
Estimated valuepricier than$2,109,50670% of homes97% of homes
Price per ft²pricier than$61482% of homes90% of homes
Living areabigger than3,434 ft²47% of homes90% of homes
Lot sizebigger than5.82 ac98% of homesalmost all homes
Year builtnewer than197726% of homes42% of homes

About 9420 Cornwell Farm Dr

How much is 9420 Cornwell Farm Dr, Great Falls, VA worth?

The TopHap Estimate for 9420 Cornwell Farm Dr, Great Falls, VA is $2,109,506 as of Jul 14, 2026. The likely range is $1,847,448 to $2,371,564. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9420 Cornwell Farm Dr, Great Falls, VA last sell?

9420 Cornwell Farm Dr, Great Falls, VA last sold on Apr 6, 2004 for $1,250,000, according to the county's recorded deed.

How big is 9420 Cornwell Farm Dr, Great Falls, VA?

9420 Cornwell Farm Dr, Great Falls, VA has 4 bedrooms, 3 bathrooms, 3,434 square feet of living space and a 5.82-acre lot.

When was 9420 Cornwell Farm Dr, Great Falls, VA built?

9420 Cornwell Farm Dr, Great Falls, VA was built in 1977, making it 49 years old. It is a split level home. The building has 2 stories.

What schools serve 9420 Cornwell Farm Dr, Great Falls, VA?

9420 Cornwell Farm Dr, Great Falls, VA is assigned to Great Falls Elementary School (elementary), rated A+; Cooper Middle School (middle), rated A+; Langley 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 9420 Cornwell Farm Dr, Great Falls, VA compare to other homes in Great Falls 22066?

Among the 6,206 homes in Great Falls 22066, it is worth more than 70% of them ($2,109,506 against a typical $1,718,327), its price per square foot is higher than 82% of them ($614 against a typical $487), it is bigger than 47% of them (3,434 ft² against a typical 3,584 ft²), its lot is bigger than 98% of them (5.82 ac against a typical 1.19 ac) and it is newer than 26% of them (1977 against a typical 1985). Measured against all of Fairfax County, it is worth more than 97% 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 9420 Cornwell Farm Dr, Great Falls, VA?

The 2025 property tax bill for 9420 Cornwell Farm Dr, Great Falls, VA was $17,772. The county assessed it at $1,537,370.

More homes on Cornwell Farm Dr

Closest homes

More homes in Great Falls 22066

Assigned schools

Explore the area

See this home in context

Open 9420 Cornwell Farm Dr 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