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Single Family ResidenceResidential
$1,826,970$448 / 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 Sep 24, 2026
Last sold for $415,000 on Jun 28, 1991

4140 N RIVER ST

MC LEAN, VA 22101
5
Beds
5 / 1
Baths
4,078 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.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
12
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

$1.8M
$1.8M low$1.9M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$415,000 · Jun 28, 1991

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$21,930 (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.$1,808,320 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$773,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,035,320
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,729,560
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,808,320

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.0.36
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.Roll Tar & Gravel
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.BalconyPatio · 396 ft²

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

E
Chesterbrook Elementary SchoolA+
Elementary · Grades KG–6 · 1.6 mi
M
Longfellow Middle SchoolA+
Middle · Grades 7–8 · 2.8 mi
H
McLean High SchoolA+
High · Grades 9–12 · 3.0 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 22101These 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.82
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 100.33

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.7%
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.32,380
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,369 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$229,340
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$326,391
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

4140 N River St 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 95% of homes in Fairfax County
  • Costs less per square foot than 96% of homes in Mc Lean 22101
  • Bigger than 94% of homes in Fairfax County
  • Has a bigger lot than 76% of homes in Fairfax County
  • Older than 73% of homes in Fairfax County

What homes are worth in Mc Lean 22101

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

This home
$649K$5.4M

This home is worth more than 55% of homes in Mc Lean 22101.

How it measures up in Mc Lean 22101

The dot is this home. The mark in the middle is the typical home in Mc Lean 22101.

Estimated value$1,826,970
CheaperTypical $1,729,270Pricier

Pricier than 55% of homes nearby

Price per ft²$448
CheaperTypical $648Pricier

Pricier than 4% of homes nearby

Living area4,078 ft²
SmallerTypical 2,672 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.36 ac
SmallerTypical 0.33 acBigger

Bigger than 59% of homes nearby

Year built1970
OlderTypical 1975Newer

Newer than 42% of homes nearby

How 4140 N River St ranks against every home in each area.
MeasureThis homeMc Lean 22101Fairfax County
Estimated valuepricier than$1,826,97055% of homes95% of homes
Price per ft²pricier than$4484% of homes58% of homes
Living areabigger than4,078 ft²73% of homes94% of homes
Lot sizebigger than0.36 ac59% of homes76% of homes
Year builtnewer than197042% of homes27% of homes

About 4140 N River St

How much is 4140 N River St, Mc Lean, VA worth?

The TopHap Estimate for 4140 N River St, Mc Lean, VA is $1,826,970 as of Sep 24, 2026. The likely range is $1,783,519 to $1,870,421. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4140 N River St, Mc Lean, VA last sell?

4140 N River St, Mc Lean, VA last sold on Jun 28, 1991 for $415,000, according to the county's recorded deed.

How big is 4140 N River St, Mc Lean, VA?

4140 N River St, Mc Lean, VA has 5 bedrooms, 5 bathrooms, 4,078 square feet of living space and a 0.36-acre lot.

When was 4140 N River St, Mc Lean, VA built?

4140 N River St, Mc Lean, VA was built in 1970, making it 56 years old. It is a split level home. The building has 2 stories.

What schools serve 4140 N River St, Mc Lean, VA?

4140 N River St, Mc Lean, VA is assigned to Chesterbrook Elementary School (elementary), rated A+; Longfellow Middle School (middle), rated A+; McLean 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 4140 N River St, Mc Lean, VA compare to other homes in Mc Lean 22101?

Among the 10,944 homes in Mc Lean 22101, it is worth more than 55% of them ($1,826,970 against a typical $1,729,270), its price per square foot is higher than 4% of them ($448 against a typical $648), it is bigger than 73% of them (4,078 ft² against a typical 2,672 ft²), its lot is bigger than 59% of them (0.36 ac against a typical 0.33 ac) and it is newer than 42% of them (1970 against a typical 1975). Measured against all of Fairfax County, it is worth more than 95% 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 4140 N River St, Mc Lean, VA?

The 2025 property tax bill for 4140 N River St, Mc Lean, VA was $21,930. The county assessed it at $1,808,320.

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