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Single Family ResidenceResidential
$959,036$999 / 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 90How 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

10420 BOSWELL LN

POTOMAC, MD 20854
1
Baths
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.
2.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1962
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$959K
$859K low$1.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,502 (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.$685,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$564,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$120,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$661,367
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$685,700

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.Townhouse
CountyMONTGOMERY
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.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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.Shed · 540 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
Wayside Elementary SchoolA+
Elementary · Grades KG–5 · 1.5 mi
M
Herbert Hoover Middle SchoolA+
Middle · Grades 6–8 · 2.6 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%

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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

10420 Boswell 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 less than 80% of homes in Potomac 20854
  • Among the highest price per square foot in Potomac 20854
  • Among the smallest homes in Potomac 20854
  • Has a bigger lot than 98% of homes in Montgomery County
  • Older than 96% of 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
$628K$3.5M

This home is worth more than 20% 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$959,036
CheaperTypical $1,264,645Pricier

Pricier than 20% of homes nearby

Price per ft²$999
CheaperTypical $367Pricier

Pricier than almost all homes nearby

Living area960 ft²
SmallerTypical 3,357 ft²Bigger

Smaller than almost all homes nearby

Lot size2.51 ac
SmallerTypical 0.3 acBigger

Bigger than 96% of homes nearby

Year built1962
OlderTypical 1977Newer

Newer than 4% of homes nearby

How 10420 Boswell Ln ranks against every home in each area.
MeasureThis homePotomac 20854Montgomery County
Estimated valuepricier than$959,03620% of homes78% of homes
Price per ft²pricier than$999almost all homesalmost all homes
Living areabigger than960 ft²almost no homes6% of homes
Lot sizebigger than2.51 ac96% of homes98% of homes
Year builtnewer than19624% of homes26% of homes

About 10420 Boswell Ln

How much is 10420 Boswell Ln, Potomac, MD worth?

The TopHap Estimate for 10420 Boswell Ln, Potomac, MD is $959,036 as of Sep 24, 2026. The likely range is $858,855 to $1,059,217. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10420 Boswell Ln, Potomac, MD last sell?

10420 Boswell Ln, Potomac, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 10420 Boswell Ln, Potomac, MD?

10420 Boswell Ln, Potomac, MD has 1 bathrooms and 960 square feet of living space.

When was 10420 Boswell Ln, Potomac, MD built?

10420 Boswell Ln, Potomac, MD was built in 1962, making it 64 years old. It is a townhouse home. The building has 1 story.

What schools serve 10420 Boswell Ln, Potomac, MD?

10420 Boswell Ln, Potomac, MD is assigned to Wayside 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 10420 Boswell Ln, Potomac, MD compare to other homes in Potomac 20854?

Among the 17,261 homes in Potomac 20854, it is worth more than 20% of them ($959,036 against a typical $1,264,645), its price per square foot is higher than almost all of them ($999 against a typical $367), it is bigger than almost none of them (960 ft² against a typical 3,357 ft²), its lot is bigger than 96% of them (2.51 ac against a typical 0.3 ac) and it is newer than 4% of them (1962 against a typical 1977). Measured against all of Montgomery County, it is worth more than 78% 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 10420 Boswell Ln, Potomac, MD?

The 2025 property tax bill for 10420 Boswell Ln, Potomac, MD was $8,502. The county assessed it at $685,700.

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