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Single Family ResidenceResidential
$500,228$321 / 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 93How 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 $410,000 on Dec 9, 2014

17550 BLACK ROCK RD

GERMANTOWN, MD 20874
2
Baths
1,556 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.
1.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.
Pre-foreclosure (LIS)A foreclosure notice on this home is currently active. Many are worked out before any auction happens.
A foreclosure-related notice has been recorded for this property.

Valuation

$500K
$466K low$534K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$410,000 · Dec 9, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,761 (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.$470,467 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$448,733
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$492,200

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.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

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.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.Electric
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

Transaction History(3)

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(1)

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

17550 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 less than 68% of homes in Montgomery County
  • Costs more per square foot than 82% of homes in Germantown 20874
  • Smaller than 69% of homes in Montgomery County
  • Has a bigger lot than 96% of homes in Germantown 20874
  • Older than 98% of 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$1.2M

This home is worth more than 65% 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$500,228
CheaperTypical $434,422Pricier

Pricier than 65% of homes nearby

Price per ft²$321
CheaperTypical $268Pricier

Pricier than 82% of homes nearby

Living area1,556 ft²
SmallerTypical 1,582 ft²Bigger

Bigger than 48% of homes nearby

Lot size1.25 ac
SmallerTypical 2,004 ft²Bigger

Bigger than 96% of homes nearby

Year built1970
OlderTypical 1988Newer

Newer than 2% of homes nearby

How 17550 Black Rock Rd ranks against every home in each area.
MeasureThis homeGermantown 20874Montgomery County
Estimated valuepricier than$500,22865% of homes32% of homes
Price per ft²pricier than$32182% of homes58% of homes
Living areabigger than1,556 ft²48% of homes31% of homes
Lot sizebigger than1.25 ac96% of homes95% of homes
Year builtnewer than19702% of homes39% of homes

About 17550 Black Rock Rd

How much is 17550 Black Rock Rd, Germantown, MD worth?

The TopHap Estimate for 17550 Black Rock Rd, Germantown, MD is $500,228 as of Aug 30, 2026. The likely range is $466,453 to $534,003. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17550 Black Rock Rd, Germantown, MD last sell?

17550 Black Rock Rd, Germantown, MD last sold on Dec 9, 2014 for $410,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 17550 Black Rock Rd, Germantown, MD?

17550 Black Rock Rd, Germantown, MD has 2 bathrooms and 1,556 square feet of living space.

When was 17550 Black Rock Rd, Germantown, MD built?

17550 Black Rock Rd, Germantown, MD was built in 1970, making it 56 years old. It is a townhouse home. The building has 1 story.

What schools serve 17550 Black Rock Rd, Germantown, MD?

17550 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 17550 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 65% of them ($500,228 against a typical $434,422), its price per square foot is higher than 82% of them ($321 against a typical $268), it is bigger than 48% of them (1,556 ft² against a typical 1,582 ft²), its lot is bigger than 96% of them (1.25 ac against a typical 2,004 ft²) and it is newer than 2% of them (1970 against a typical 1988). Measured against all of Montgomery County, it is worth more than 32% 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 17550 Black Rock Rd, Germantown, MD?

The 2025 property tax bill for 17550 Black Rock Rd, Germantown, MD was $5,761. The county assessed it at $470,467.

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