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CondominiumResidential
$241,303
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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $245,691 on Sep 18, 2025

4938 GENOME ALY

ROCKVILLE, MD 20850
Building report
0
Baths
2025
Year BuiltThe year the home was originally built, according to county records.

Valuation

$241K
$228K low$255K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$245,691 · Sep 18, 2025

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$235,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$70,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$164,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$235,000

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.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
34
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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMONTGOMERY
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Stone Mill Elementary SchoolA+
Elementary · Grades KG–5 · 0.7 mi
H
Thomas S. Wootton High SchoolA
High · Grades 9–12 · 2.1 mi
M
Cabin John Middle SchoolA+
Middle · Grades 6–8 · 5.1 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20850These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.51,693
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,703 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,425
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$154,183
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

4938 Genome Aly 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 97% of homes in Rockville
  • Among the newest homes in Rockville

What homes are worth in Rockville 20850

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

This home
$193K$1.7M

This home is worth more than 4% of homes in Rockville 20850.

How it measures up in Rockville 20850

The dot is this home. The mark in the middle is the typical home in Rockville 20850.

Estimated value$241,303
CheaperTypical $754,918Pricier

Pricier than 4% of homes nearby

Year built2025
OlderTypical 1991Newer

Newer than almost all homes nearby

How 4938 Genome Aly ranks against every home in each area.
MeasureThis homeRockvilleRockville 20850Montgomery County
Estimated valuepricier than$241,3033% of homes4% of homes6% of homes
Year builtnewer than2025almost all homesalmost all homesalmost all homes

About 4938 Genome Aly

How much is 4938 Genome Aly, Rockville, MD worth?

The TopHap Estimate for 4938 Genome Aly, Rockville, MD is $241,303 as of Oct 21, 2026. The likely range is $227,951 to $254,655. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4938 Genome Aly, Rockville, MD last sell?

4938 Genome Aly, Rockville, MD last sold on Sep 18, 2025 for $245,691, according to the county's recorded deed.

When was 4938 Genome Aly, Rockville, MD built?

4938 Genome Aly, Rockville, MD was built in 2025, making it 1 years old. It is a condo/apartment home.

What schools serve 4938 Genome Aly, Rockville, MD?

4938 Genome Aly, Rockville, MD is assigned to Stone Mill Elementary School (elementary), rated A+; Thomas S. Wootton High School (high), rated A; Cabin John 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 4938 Genome Aly, Rockville, MD compare to other homes in Rockville 20850?

Among the 14,094 homes in Rockville 20850, it is worth more than 4% of them ($241,303 against a typical $754,918) and it is newer than almost all of them (2025 against a typical 1991). Measured against all of Montgomery County, it is worth more than 6% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Genome Aly

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Assigned schools

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