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Single Family ResidenceResidential
$605,693$228 / 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 97How 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 $636,000 on Mar 24, 2023

17551 BLACK ROCK RD

GERMANTOWN, MD 20874
3
Baths
2,657 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.
1.11 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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$606K
$585K low$626K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$636,000 · Mar 24, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,312 (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.$598,233 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$540,567
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$655,900

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
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 · 240 ft²Patio · 700 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.

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

E
Spark M. Matsunaga Elementary SchoolB-
Elementary · Grades KG–5 · 0.6 mi
H
Northwest High SchoolB+
High · Grades 9–12 · 1.1 mi
M
Kingsview Middle SchoolA
Middle · Grades 6–8 · 1.8 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20874These 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.88
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.36

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
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.63,804
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,847 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,042
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$139,548
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%

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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

17551 Black Rock 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.

  • Worth more than 79% of homes in Germantown 20874
  • Costs less per square foot than 85% of homes in Germantown 20874
  • Bigger than 86% of homes in Germantown 20874
  • Has a bigger lot than 96% of homes in Germantown 20874
  • Among the oldest homes in Germantown 20874

What homes are worth in Germantown 20874

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

This home
$230K$1.3M

This home is worth more than 79% of homes in Germantown 20874.

How it measures up in Germantown 20874

The dot is this home. The mark in the middle is the typical home in Germantown 20874.

Estimated value$605,693
CheaperTypical $435,351Pricier

Pricier than 79% of homes nearby

Price per ft²$228
CheaperTypical $268Pricier

Pricier than 15% of homes nearby

Living area2,657 ft²
SmallerTypical 1,580 ft²Bigger

Bigger than 86% of homes nearby

Lot size1.11 ac
SmallerTypical 2,004 ft²Bigger

Bigger than 96% of homes nearby

Year built1962
OlderTypical 1988Newer

Older than almost all homes nearby

How 17551 Black Rock Rd ranks against every home in each area.
MeasureThis homeGermantown 20874Montgomery County
Estimated valuepricier than$605,69379% of homes47% of homes
Price per ft²pricier than$22815% of homes15% of homes
Living areabigger than2,657 ft²86% of homes70% of homes
Lot sizebigger than1.11 ac96% of homes95% of homes
Year builtnewer than1962almost no homes27% of homes

About 17551 Black Rock Rd

How much is 17551 Black Rock Rd, Germantown, MD worth?

The TopHap Estimate for 17551 Black Rock Rd, Germantown, MD is $605,693 as of Aug 30, 2026. The likely range is $585,215 to $626,171. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17551 Black Rock Rd, Germantown, MD last sell?

17551 Black Rock Rd, Germantown, MD last sold on Mar 24, 2023 for $636,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 17551 Black Rock Rd, Germantown, MD?

17551 Black Rock Rd, Germantown, MD has 3 bathrooms and 2,657 square feet of living space.

When was 17551 Black Rock Rd, Germantown, MD built?

17551 Black Rock Rd, Germantown, MD was built in 1962, making it 64 years old. It is a townhouse home. The building has 1 story.

What schools serve 17551 Black Rock Rd, Germantown, MD?

17551 Black Rock Rd, Germantown, MD is assigned to Spark M. Matsunaga Elementary School (elementary), rated B-; Northwest High School (high), rated B+; Kingsview Middle School (middle), rated A. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17551 Black Rock Rd, Germantown, MD compare to other homes in Germantown 20874?

Among the 18,157 homes in Germantown 20874, it is worth more than 79% of them ($605,693 against a typical $435,351), its price per square foot is higher than 15% of them ($228 against a typical $268), it is bigger than 86% of them (2,657 ft² against a typical 1,580 ft²), its lot is bigger than 96% of them (1.11 ac against a typical 2,004 ft²) and it is newer than almost none of them (1962 against a typical 1988). Measured against all of Montgomery County, it is worth more than 47% 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 17551 Black Rock Rd, Germantown, MD?

The 2025 property tax bill for 17551 Black Rock Rd, Germantown, MD was $6,312. The county assessed it at $598,233.

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