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Single Family ResidenceResidential
$834,530$258 / 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 81How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $617,000 on Oct 17, 2016

17431 ASTORIA LN

SILVER SPRING, MD 20905
3.5
Baths
3,240 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.
1.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1952
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$835K
$678K low$991K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$617,000 · Oct 17, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,581 (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.$769,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$264,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$505,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$694,933
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$769,900

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
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 300 ft²Boat access

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
Cloverly Elementary SchoolB
Elementary · Grades KG–5 · 2.7 mi
H
James Hubert Blake High SchoolC
High · Grades 9–12 · 2.8 mi
M
William H. Farquhar Middle SchoolA-
Middle · Grades 6–8 · 3.1 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%

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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

17431 Astoria Ln 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 83% of homes in Silver Spring 20905
  • Costs less per square foot than 72% of homes in Montgomery County
  • Bigger than 81% of homes in Montgomery County
  • Has a bigger lot than 95% 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
$366K$1.3M

This home is worth more than 83% 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$834,530
CheaperTypical $685,688Pricier

Pricier than 83% of homes nearby

Price per ft²$258
CheaperTypical $271Pricier

Pricier than 40% of homes nearby

Living area3,240 ft²
SmallerTypical 2,496 ft²Bigger

Bigger than 77% of homes nearby

Lot size1.19 ac
SmallerTypical 0.38 acBigger

Bigger than 90% of homes nearby

Year built1952
OlderTypical 1981Newer

Newer than 5% of homes nearby

How 17431 Astoria Ln ranks against every home in each area.
MeasureThis homeSilver Spring 20905Montgomery County
Estimated valuepricier than$834,53083% of homes70% of homes
Price per ft²pricier than$25840% of homes28% of homes
Living areabigger than3,240 ft²77% of homes81% of homes
Lot sizebigger than1.19 ac90% of homes95% of homes
Year builtnewer than19525% of homes14% of homes

About 17431 Astoria Ln

How much is 17431 Astoria Ln, Silver Spring, MD worth?

The TopHap Estimate for 17431 Astoria Ln, Silver Spring, MD is $834,530 as of Sep 24, 2026. The likely range is $678,495 to $990,565. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17431 Astoria Ln, Silver Spring, MD last sell?

17431 Astoria Ln, Silver Spring, MD last sold on Oct 17, 2016 for $617,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 17431 Astoria Ln, Silver Spring, MD?

17431 Astoria Ln, Silver Spring, MD has 3.5 bathrooms and 3,240 square feet of living space.

When was 17431 Astoria Ln, Silver Spring, MD built?

17431 Astoria Ln, Silver Spring, MD was built in 1952, making it 74 years old. It is a townhouse home. The building has 1 story.

What schools serve 17431 Astoria Ln, Silver Spring, MD?

17431 Astoria Ln, Silver Spring, MD is assigned to Cloverly Elementary School (elementary), rated B; James Hubert Blake High School (high), rated C; William H. Farquhar 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 17431 Astoria Ln, 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 83% of them ($834,530 against a typical $685,688), its price per square foot is higher than 40% of them ($258 against a typical $271), it is bigger than 77% of them (3,240 ft² against a typical 2,496 ft²), its lot is bigger than 90% of them (1.19 ac against a typical 0.38 ac) and it is newer than 5% of them (1952 against a typical 1981). Measured against all of Montgomery County, it is worth more than 70% 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 17431 Astoria Ln, Silver Spring, MD?

The 2025 property tax bill for 17431 Astoria Ln, Silver Spring, MD was $7,581. The county assessed it at $769,900.

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