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Single Family ResidenceResidential
$588,868$385 / 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 91How 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 $580,000 on Jul 8, 2025

4015 GANNON RD

SILVER SPRING, MD 20902
2
Baths
1,528 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$589K
$534K low$644K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$580,000 · Jul 8, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,112 (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.$521,867 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$183,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$562,600

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.8
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
29
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.0.17
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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 · 0.4 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

4015 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 more than 65% of homes in Silver Spring 20902
  • Costs more per square foot than 88% of homes in Silver Spring 20902
  • Smaller than 70% of homes in Montgomery County
  • Among the newest homes in Silver Spring 20902

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 65% 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$588,868
CheaperTypical $538,671Pricier

Pricier than 65% of homes nearby

Price per ft²$385
CheaperTypical $309Pricier

Pricier than 88% of homes nearby

Living area1,528 ft²
SmallerTypical 1,702 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.17 ac
SmallerTypical 0.16 acBigger

Bigger than 59% of homes nearby

Year built2024
OlderTypical 1956Newer

Newer than almost all homes nearby

How 4015 Gannon Rd ranks against every home in each area.
MeasureThis homeSilver Spring 20902Montgomery County
Estimated valuepricier than$588,86865% of homes45% of homes
Price per ft²pricier than$38588% of homes78% of homes
Living areabigger than1,528 ft²38% of homes30% of homes
Lot sizebigger than0.17 ac59% of homes52% of homes
Year builtnewer than2024almost all homesalmost all homes

About 4015 Gannon Rd

How much is 4015 Gannon Rd, Silver Spring, MD worth?

The TopHap Estimate for 4015 Gannon Rd, Silver Spring, MD is $588,868 as of Sep 24, 2026. The likely range is $533,565 to $644,171. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4015 Gannon Rd, Silver Spring, MD last sell?

4015 Gannon Rd, Silver Spring, MD last sold on Jul 8, 2025 for $580,000, according to the county's recorded deed.

How big is 4015 Gannon Rd, Silver Spring, MD?

4015 Gannon Rd, Silver Spring, MD has 2 bathrooms, 1,528 square feet of living space and a 0.17-acre lot.

When was 4015 Gannon Rd, Silver Spring, MD built?

4015 Gannon Rd, Silver Spring, MD was built in 2024, making it 2 years old. The building has 1 story.

What schools serve 4015 Gannon Rd, Silver Spring, MD?

4015 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 4015 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 65% of them ($588,868 against a typical $538,671), its price per square foot is higher than 88% of them ($385 against a typical $309), it is bigger than 38% of them (1,528 ft² against a typical 1,702 ft²), its lot is bigger than 59% of them (0.17 ac against a typical 0.16 ac) and it is newer than almost all of them (2024 against a typical 1956). Measured against all of Montgomery County, it is worth more than 45% 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 4015 Gannon Rd, Silver Spring, MD?

The 2025 property tax bill for 4015 Gannon Rd, Silver Spring, MD was $2,112. The county assessed it at $521,867.

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