Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,831,216$253 / 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 Aug 30, 2026
Last sold for $1,250,000 on Apr 24, 2009

10409 BOSWELL LN

POTOMAC, MD 20854
4.5
Baths
7,226 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.
1.45 ac
Lot SizeThe size of the land the home sits on, from county records.
1993
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

$1.8M
$1.7M 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.$1,250,000 · Apr 24, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$17,617 (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.$1,614,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$550,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,063,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,518,467
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,614,200

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.124 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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.Wood Shingle
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.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 320 ft²

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

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 · 1.6 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%

Owner Tools

Do you own this home?
Claim this home

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

10409 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 more than 96% of homes in Montgomery County
  • Costs less per square foot than 96% of homes in Potomac 20854
  • Bigger than 98% of homes in Montgomery County
  • Has a bigger lot than 96% of homes in Montgomery County
  • Newer than 80% 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
$599K$3.3M

This home is worth more than 80% 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$1,831,216
CheaperTypical $1,262,215Pricier

Pricier than 80% of homes nearby

Price per ft²$253
CheaperTypical $366Pricier

Pricier than 4% of homes nearby

Living area7,226 ft²
SmallerTypical 3,355 ft²Bigger

Bigger than 90% of homes nearby

Lot size1.45 ac
SmallerTypical 0.3 acBigger

Bigger than 83% of homes nearby

Year built1993
OlderTypical 1977Newer

Newer than 80% of homes nearby

How 10409 Boswell Ln ranks against every home in each area.
MeasureThis homePotomac 20854Montgomery County
Estimated valuepricier than$1,831,21680% of homes96% of homes
Price per ft²pricier than$2534% of homes26% of homes
Living areabigger than7,226 ft²90% of homes98% of homes
Lot sizebigger than1.45 ac83% of homes96% of homes
Year builtnewer than199380% of homes78% of homes

About 10409 Boswell Ln

How much is 10409 Boswell Ln, Potomac, MD worth?

The TopHap Estimate for 10409 Boswell Ln, Potomac, MD is $1,831,216 as of Aug 30, 2026. The likely range is $1,727,585 to $1,934,847. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10409 Boswell Ln, Potomac, MD last sell?

10409 Boswell Ln, Potomac, MD last sold on Apr 24, 2009 for $1,250,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 10409 Boswell Ln, Potomac, MD?

10409 Boswell Ln, Potomac, MD has 4.5 bathrooms and 7,226 square feet of living space.

When was 10409 Boswell Ln, Potomac, MD built?

10409 Boswell Ln, Potomac, MD was built in 1993, making it 33 years old. It is a bi-level home. The building has 2 stories.

What schools serve 10409 Boswell Ln, Potomac, MD?

10409 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 10409 Boswell Ln, Potomac, MD compare to other homes in Potomac 20854?

Among the 17,261 homes in Potomac 20854, it is worth more than 80% of them ($1,831,216 against a typical $1,262,215), its price per square foot is higher than 4% of them ($253 against a typical $366), it is bigger than 90% of them (7,226 ft² against a typical 3,355 ft²), its lot is bigger than 83% of them (1.45 ac against a typical 0.3 ac) and it is newer than 80% of them (1993 against a typical 1977). Measured against all of Montgomery County, it is worth more than 96% 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 10409 Boswell Ln, Potomac, MD?

The 2025 property tax bill for 10409 Boswell Ln, Potomac, MD was $17,617. The county assessed it at $1,614,200.

More homes on Boswell Ln

Closest homes

More homes in Potomac 20854

Assigned schools

Explore the area

See this home in context

Open 10409 Boswell 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