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Single Family ResidenceResidential
$576,159$231 / 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 96How 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

9120 ROUNDLEAF WAY

GAITHERSBURG, MD 20879
2.5
Baths
2,491 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.
0.31 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$576K
$552K low$601K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,249 (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.$478,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$201,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$276,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$452,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$478,500

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
Lot (acres)The size of the land the home sits on, from county records.0.31
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.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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

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

E
Goshen Elementary SchoolC+
Elementary · Grades KG–5 · 0.9 mi
M
Forest Oak Middle SchoolD-
Middle · Grades 6–8 · 2.0 mi
H
Gaithersburg High SchoolD
High · Grades 9–12 · 3.3 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20879These 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.77
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.29,513
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,576 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,978
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$132,194
Average tempThe average temperature here across a full year.54°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.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

9120 Roundleaf Way 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 78% of homes in Gaithersburg 20879
  • Costs less per square foot than 84% of homes in Montgomery County
  • Bigger than 85% of homes in Gaithersburg 20879
  • Has a bigger lot than 88% of homes in Gaithersburg 20879
  • Older than 79% of homes in Gaithersburg 20879

What homes are worth in Gaithersburg 20879

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

This home
$179K$1.1M

This home is worth more than 78% of homes in Gaithersburg 20879.

How it measures up in Gaithersburg 20879

The dot is this home. The mark in the middle is the typical home in Gaithersburg 20879.

Estimated value$576,159
CheaperTypical $439,718Pricier

Pricier than 78% of homes nearby

Price per ft²$231
CheaperTypical $260Pricier

Pricier than 20% of homes nearby

Living area2,491 ft²
SmallerTypical 1,572 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.31 ac
SmallerTypical 2,701 ft²Bigger

Bigger than 88% of homes nearby

Year built1979
OlderTypical 1985Newer

Newer than 21% of homes nearby

How 9120 Roundleaf Way ranks against every home in each area.
MeasureThis homeGaithersburg 20879Montgomery County
Estimated valuepricier than$576,15978% of homes42% of homes
Price per ft²pricier than$23120% of homes16% of homes
Living areabigger than2,491 ft²85% of homes66% of homes
Lot sizebigger than0.31 ac88% of homes79% of homes
Year builtnewer than197921% of homes51% of homes

About 9120 Roundleaf Way

How much is 9120 Roundleaf Way, Gaithersburg, MD worth?

The TopHap Estimate for 9120 Roundleaf Way, Gaithersburg, MD is $576,159 as of Aug 30, 2026. The likely range is $551,675 to $600,643. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9120 Roundleaf Way, Gaithersburg, MD last sell?

9120 Roundleaf Way, Gaithersburg, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 9120 Roundleaf Way, Gaithersburg, MD?

9120 Roundleaf Way, Gaithersburg, MD has 2.5 bathrooms, 2,491 square feet of living space and a 0.31-acre lot.

When was 9120 Roundleaf Way, Gaithersburg, MD built?

9120 Roundleaf Way, Gaithersburg, MD was built in 1979, making it 47 years old. It is a bi-level home. The building has 2 stories.

What schools serve 9120 Roundleaf Way, Gaithersburg, MD?

9120 Roundleaf Way, Gaithersburg, MD is assigned to Goshen Elementary School (elementary), rated C+; Forest Oak Middle School (middle), rated D-; Gaithersburg High School (high), rated D. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9120 Roundleaf Way, Gaithersburg, MD compare to other homes in Gaithersburg 20879?

Among the 7,859 homes in Gaithersburg 20879, it is worth more than 78% of them ($576,159 against a typical $439,718), its price per square foot is higher than 20% of them ($231 against a typical $260), it is bigger than 85% of them (2,491 ft² against a typical 1,572 ft²), its lot is bigger than 88% of them (0.31 ac against a typical 2,701 ft²) and it is newer than 21% of them (1979 against a typical 1985). Measured against all of Montgomery County, it is worth more than 42% 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 9120 Roundleaf Way, Gaithersburg, MD?

The 2025 property tax bill for 9120 Roundleaf Way, Gaithersburg, MD was $4,249. The county assessed it at $478,500.

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