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Single Family ResidenceResidential
$456,239$383 / 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 Sep 24, 2026
Last sold for $340,000 on Jun 11, 2020

3902 GANNON RD

SILVER SPRING, MD 20902
1
Baths
1,192 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.
0.15 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.

Valuation

$456K
$441K low$472K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$340,000 · Jun 11, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,805 (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.$355,333 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$346,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$373,400

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.0.15
ConstructionThe main material the home's frame and walls are built from.Brick
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

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
Sargent Shriver Elementary SchoolD+
Elementary · Grades PK–5 · 0.5 mi
H
Wheaton High SchoolB-
High · Grades 9–12 · 0.7 mi
M
A. Mario Loiederman Middle SchoolD+
Middle · Grades 6–8 · 0.8 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20902These 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.96
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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.8%
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.53,163
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,976 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,726
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$142,608
Average tempThe average temperature here across a full year.55°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

3902 Gannon 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 73% of homes in Silver Spring 20902
  • Costs more per square foot than 87% of homes in Silver Spring 20902
  • Smaller than 85% of homes in Montgomery County
  • Older than 86% of homes in Montgomery County

What homes are worth in Silver Spring 20902

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

This home
$157K$986K

This home is worth more than 27% of homes in Silver Spring 20902.

How it measures up in Silver Spring 20902

The dot is this home. The mark in the middle is the typical home in Silver Spring 20902.

Estimated value$456,239
CheaperTypical $538,671Pricier

Pricier than 27% of homes nearby

Price per ft²$383
CheaperTypical $309Pricier

Pricier than 87% of homes nearby

Living area1,192 ft²
SmallerTypical 1,702 ft²Bigger

Bigger than 21% of homes nearby

Lot size0.15 ac
SmallerTypical 0.16 acBigger

Bigger than 44% of homes nearby

Year built1952
OlderTypical 1956Newer

Newer than 39% of homes nearby

How 3902 Gannon Rd ranks against every home in each area.
MeasureThis homeSilver Spring 20902Montgomery County
Estimated valuepricier than$456,23927% of homes27% of homes
Price per ft²pricier than$38387% of homes78% of homes
Living areabigger than1,192 ft²21% of homes15% of homes
Lot sizebigger than0.15 ac44% of homes47% of homes
Year builtnewer than195239% of homes14% of homes

About 3902 Gannon Rd

How much is 3902 Gannon Rd, Silver Spring, MD worth?

The TopHap Estimate for 3902 Gannon Rd, Silver Spring, MD is $456,239 as of Sep 24, 2026. The likely range is $440,567 to $471,911. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3902 Gannon Rd, Silver Spring, MD last sell?

3902 Gannon Rd, Silver Spring, MD last sold on Jun 11, 2020 for $340,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 3902 Gannon Rd, Silver Spring, MD?

3902 Gannon Rd, Silver Spring, MD has 1 bathrooms, 1,192 square feet of living space and a 0.15-acre lot.

When was 3902 Gannon Rd, Silver Spring, MD built?

3902 Gannon Rd, 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 3902 Gannon Rd, Silver Spring, MD?

3902 Gannon Rd, Silver Spring, MD is assigned to Sargent Shriver Elementary School (elementary), rated D+; Wheaton High School (high), rated B-; A. Mario Loiederman 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 3902 Gannon Rd, Silver Spring, MD compare to other homes in Silver Spring 20902?

Among the 13,404 homes in Silver Spring 20902, it is worth more than 27% of them ($456,239 against a typical $538,671), its price per square foot is higher than 87% of them ($383 against a typical $309), it is bigger than 21% of them (1,192 ft² against a typical 1,702 ft²), its lot is bigger than 44% of them (0.15 ac against a typical 0.16 ac) and it is newer than 39% of them (1952 against a typical 1956). Measured against all of Montgomery County, it is worth more than 27% 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 3902 Gannon Rd, Silver Spring, MD?

The 2025 property tax bill for 3902 Gannon Rd, Silver Spring, MD was $4,805. The county assessed it at $355,333.

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