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Single Family ResidenceResidential
$3,040,348$375 / 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 91How 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

9490 RIVER RD

POTOMAC, MD 20854
5 / 2
Baths
8,110 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.
5.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1937
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$3M
$2.8M low$3.3M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,227 (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.$3,037,200 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,876,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$3,358,800

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.Bi-Level
CountyMONTGOMERY
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
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, 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.StableTennis courtDeck · 720 ft²Patio · 2,000 ft²Porch · 894 ft²Greenhouse

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

E
Potomac Elementary SchoolA
Elementary · Grades KG–5 · 1.3 mi
M
Herbert Hoover Middle SchoolA+
Middle · Grades 6–8 · 2.7 mi
H
Winston Churchill High SchoolA
High · Grades 9–12 · 2.8 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20854These 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.43
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 100.35

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.5%
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.51,685
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,423 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$211,237
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$271,649
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.57%

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

9490 River Rd 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.

  • Among the most valuable homes in Montgomery County
  • Costs more per square foot than 76% of homes in Montgomery County
  • Bigger than 98% of homes in Montgomery County
  • Among the largest lots in Potomac 20854
  • Among the oldest homes in Potomac 20854

What homes are worth in Potomac 20854

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

This home
$644K$3.5M

This home is worth more than 97% of homes in Potomac 20854.

How it measures up in Potomac 20854

The dot is this home. The mark in the middle is the typical home in Potomac 20854.

Estimated value$3,040,348
CheaperTypical $1,279,477Pricier

Pricier than 97% of homes nearby

Price per ft²$375
CheaperTypical $370Pricier

Pricier than 53% of homes nearby

Living area8,110 ft²
SmallerTypical 3,354 ft²Bigger

Bigger than 93% of homes nearby

Lot size5.22 ac
SmallerTypical 0.3 acBigger

Bigger than almost all homes nearby

Year built1937
OlderTypical 1977Newer

Older than almost all homes nearby

How 9490 River Rd ranks against every home in each area.
MeasureThis homePotomac 20854Montgomery County
Estimated valuepricier than$3,040,34897% of homesalmost all homes
Price per ft²pricier than$37553% of homes76% of homes
Living areabigger than8,110 ft²93% of homes98% of homes
Lot sizebigger than5.22 acalmost all homesalmost all homes
Year builtnewer than1937almost no homes3% of homes

About 9490 River Rd

How much is 9490 River Rd, Potomac, MD worth?

The TopHap Estimate for 9490 River Rd, Potomac, MD is $3,040,348 as of Jul 14, 2026. The likely range is $2,758,000 to $3,322,696. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9490 River Rd, Potomac, MD last sell?

9490 River Rd, Potomac, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 9490 River Rd, Potomac, MD?

9490 River Rd, Potomac, MD has 5 bathrooms and 8,110 square feet of living space.

When was 9490 River Rd, Potomac, MD built?

9490 River Rd, Potomac, MD was built in 1937, making it 89 years old. It is a bi-level home. The building has 2 stories.

What schools serve 9490 River Rd, Potomac, MD?

9490 River Rd, Potomac, MD is assigned to Potomac Elementary School (elementary), rated A; Herbert Hoover Middle School (middle), rated A+; Winston Churchill High School (high), rated A. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9490 River Rd, Potomac, MD compare to other homes in Potomac 20854?

Among the 17,261 homes in Potomac 20854, it is worth more than 97% of them ($3,040,348 against a typical $1,279,477), its price per square foot is higher than 53% of them ($375 against a typical $370), it is bigger than 93% of them (8,110 ft² against a typical 3,354 ft²), its lot is bigger than almost all of them (5.22 ac against a typical 0.3 ac) and it is newer than almost none of them (1937 against a typical 1977). Measured against all of Montgomery County, it is worth more than almost all 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 9490 River Rd, Potomac, MD?

The 2025 property tax bill for 9490 River Rd, Potomac, MD was $3,227. The county assessed it at $3,037,200.

More homes on River Rd

Closest homes

More homes in Potomac 20854

Assigned schools

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