Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$456,759$517 / 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 95How 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
Last sold for $147,000 on Feb 1, 1993

13100 DUMBARTON DR

ROCKVILLE, MD 20853
1
Baths
884 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$457K
$436K low$477K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$147,000 · Feb 1, 1993
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$341,009
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$272,807
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.25%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$115,750
MELLON MORTGAGE CO · R · recorded Dec 15, 1998

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,366 (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.$371,933 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$368,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$379,200

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
Lot (acres)The size of the land the home sits on, from county records.0.16
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.Central
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 · 200 ft²

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

E
Wheaton Woods Elementary SchoolB+
Elementary · Grades PK–5 · 0.3 mi
M
Parkland Middle SchoolB-
Middle · Grades 6–8 · 1.1 mi
H
Wheaton High SchoolC+
High · Grades 9–12 · 1.1 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20853These 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.60
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.30,497
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,373 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,074
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,691
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

13100 Dumbarton Dr 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 93% of homes in Rockville 20853
  • Among the highest price per square foot in Rockville 20853
  • Among the smallest homes in Rockville 20853
  • Has a smaller lot than 86% of homes in Rockville 20853
  • Older than 87% of homes in Rockville 20853

What homes are worth in Rockville 20853

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

This home
$234K$1.2M

This home is worth more than 7% of homes in Rockville 20853.

How it measures up in Rockville 20853

The dot is this home. The mark in the middle is the typical home in Rockville 20853.

Estimated value$456,759
CheaperTypical $640,765Pricier

Pricier than 7% of homes nearby

Price per ft²$517
CheaperTypical $308Pricier

Pricier than almost all homes nearby

Living area884 ft²
SmallerTypical 2,035 ft²Bigger

Smaller than almost all homes nearby

Lot size0.16 ac
SmallerTypical 0.23 acBigger

Bigger than 14% of homes nearby

Year built1955
OlderTypical 1965Newer

Newer than 13% of homes nearby

How 13100 Dumbarton Dr ranks against every home in each area.
MeasureThis homeRockville 20853Montgomery County
Estimated valuepricier than$456,7597% of homes26% of homes
Price per ft²pricier than$517almost all homes94% of homes
Living areabigger than884 ft²almost no homes5% of homes
Lot sizebigger than0.16 ac14% of homes49% of homes
Year builtnewer than195513% of homes18% of homes

About 13100 Dumbarton Dr

How much is 13100 Dumbarton Dr, Rockville, MD worth?

The TopHap Estimate for 13100 Dumbarton Dr, Rockville, MD is $456,759 as of Jul 14, 2026. The likely range is $436,175 to $477,343. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 13100 Dumbarton Dr, Rockville, MD last sell?

13100 Dumbarton Dr, Rockville, MD last sold on Feb 1, 1993 for $147,000, according to the county's recorded deed.

How big is 13100 Dumbarton Dr, Rockville, MD?

13100 Dumbarton Dr, Rockville, MD has 1 bathrooms, 884 square feet of living space and a 0.16-acre lot.

When was 13100 Dumbarton Dr, Rockville, MD built?

13100 Dumbarton Dr, Rockville, MD was built in 1955, making it 71 years old. It is a townhouse home. The building has 1 story.

What schools serve 13100 Dumbarton Dr, Rockville, MD?

13100 Dumbarton Dr, Rockville, MD is assigned to Wheaton Woods Elementary School (elementary), rated B+; Parkland Middle School (middle), rated B-; Wheaton High School (high), rated C+. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 13100 Dumbarton Dr, Rockville, MD compare to other homes in Rockville 20853?

Among the 9,294 homes in Rockville 20853, it is worth more than 7% of them ($456,759 against a typical $640,765), its price per square foot is higher than almost all of them ($517 against a typical $308), it is bigger than almost none of them (884 ft² against a typical 2,035 ft²), its lot is bigger than 14% of them (0.16 ac against a typical 0.23 ac) and it is newer than 13% of them (1955 against a typical 1965). Measured against all of Montgomery County, it is worth more than 26% 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 13100 Dumbarton Dr, Rockville, MD?

The 2025 property tax bill for 13100 Dumbarton Dr, Rockville, MD was $4,366. The county assessed it at $371,933.

Closest homes

More homes in Rockville 20853

Assigned schools

Explore the area

See this home in context

Open 13100 Dumbarton Dr 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