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Single Family ResidenceResidential
$501,158$348 / 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 Jul 14, 2026
Last sold for $355,000 on Jul 24, 2015

21 PIPING ROCK DR

SILVER SPRING, MD 20905
2
Baths
1,442 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1951
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$501K
$479K low$524K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$355,000 · Jul 24, 2015
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.$22,158
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$17,726
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.96%
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.$404,000
ATLANTIC COAST MORTGAGE · recorded Oct 13, 2020
2nd 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.$75,000
PENNYMAC LOAN SERVICES LLC

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,654 (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.$406,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$273,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$132,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$391,233
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$406,100

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.0.60
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
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.Porch · 168 ft²

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.

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

E
Stonegate Elementary SchoolB
Elementary · Grades PK–5 · 0.5 mi
H
James Hubert Blake High SchoolB-
High · Grades 9–12 · 1.4 mi
M
White Oak Middle SchoolD+
Middle · Grades 6–8 · 2.8 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20905These 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.46
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
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.18,037
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,386 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$144,678
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$174,625
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
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

21 Piping Rock 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 87% of homes in Silver Spring 20905
  • Costs more per square foot than 88% of homes in Silver Spring 20905
  • Smaller than 88% of homes in Silver Spring 20905
  • Has a bigger lot than 91% of homes in Montgomery County
  • Older than 95% of homes in Silver Spring 20905

What homes are worth in Silver Spring 20905

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

This home
$350K$1.3M

This home is worth more than 13% of homes in Silver Spring 20905.

How it measures up in Silver Spring 20905

The dot is this home. The mark in the middle is the typical home in Silver Spring 20905.

Estimated value$501,158
CheaperTypical $682,224Pricier

Pricier than 13% of homes nearby

Price per ft²$348
CheaperTypical $269Pricier

Pricier than 88% of homes nearby

Living area1,442 ft²
SmallerTypical 2,504 ft²Bigger

Bigger than 12% of homes nearby

Lot size0.6 ac
SmallerTypical 0.38 acBigger

Bigger than 78% of homes nearby

Year built1951
OlderTypical 1981Newer

Newer than 5% of homes nearby

How 21 Piping Rock Dr ranks against every home in each area.
MeasureThis homeSilver Spring 20905Montgomery County
Estimated valuepricier than$501,15813% of homes32% of homes
Price per ft²pricier than$34888% of homes67% of homes
Living areabigger than1,442 ft²12% of homes27% of homes
Lot sizebigger than0.6 ac78% of homes91% of homes
Year builtnewer than19515% of homes13% of homes

About 21 Piping Rock Dr

How much is 21 Piping Rock Dr, Silver Spring, MD worth?

The TopHap Estimate for 21 Piping Rock Dr, Silver Spring, MD is $501,158 as of Jul 14, 2026. The likely range is $478,796 to $523,520. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Piping Rock Dr, Silver Spring, MD last sell?

21 Piping Rock Dr, Silver Spring, MD last sold on Jul 24, 2015 for $355,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Piping Rock Dr, Silver Spring, MD?

21 Piping Rock Dr, Silver Spring, MD has 2 bathrooms, 1,442 square feet of living space and a 0.60-acre lot.

When was 21 Piping Rock Dr, Silver Spring, MD built?

21 Piping Rock Dr, Silver Spring, MD was built in 1951, making it 75 years old. It is a townhouse home. The building has 1 story.

What schools serve 21 Piping Rock Dr, Silver Spring, MD?

21 Piping Rock Dr, Silver Spring, MD is assigned to Stonegate Elementary School (elementary), rated B; James Hubert Blake High School (high), rated B-; White Oak Middle School (middle), rated D+. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Piping Rock Dr, Silver Spring, MD compare to other homes in Silver Spring 20905?

Among the 5,662 homes in Silver Spring 20905, it is worth more than 13% of them ($501,158 against a typical $682,224), its price per square foot is higher than 88% of them ($348 against a typical $269), it is bigger than 12% of them (1,442 ft² against a typical 2,504 ft²), its lot is bigger than 78% of them (0.6 ac against a typical 0.38 ac) and it is newer than 5% of them (1951 against a typical 1981). 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 21 Piping Rock Dr, Silver Spring, MD?

The 2025 property tax bill for 21 Piping Rock Dr, Silver Spring, MD was $4,654. The county assessed it at $406,100.

Closest homes

More homes in Silver Spring 20905

Assigned schools

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