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Single Family ResidenceResidential
$864,350$302 / 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 Aug 30, 2026
Last sold for $240,000 on Oct 26, 1987

15309 CARROLTON RD

ROCKVILLE, MD 20853
2.5
Baths
2,860 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.
0.54 ac
Lot SizeThe size of the land the home sits on, from county records.
1968
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$864K
$787K low$942K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$240,000 · Oct 26, 1987

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,307 (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.$743,967 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$721,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$789,100

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
StyleThe architectural style of the home, such as ranch or colonial.Bi-Level
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.0.54
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
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

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

E
Flower Valley Elementary SchoolC+
Elementary · Grades KG–5 · 0.2 mi
M
Earle B. Wood Middle SchoolB-
Middle · Grades 6–8 · 1.3 mi
H
Rockville High SchoolB-
High · Grades 9–12 · 2.1 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20853These 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.60
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.30,497
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,373 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,074
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,691
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

15309 Carrolton 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 82% of homes in Rockville 20853
  • Bigger than 80% of homes in Rockville 20853
  • Has a bigger lot than 92% of homes in Rockville 20853
  • Newer than 73% of homes in Rockville 20853

What homes are worth in Rockville 20853

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

This home
$231K$1.2M

This home is worth more than 82% of homes in Rockville 20853.

How it measures up in Rockville 20853

The dot is this home. The mark in the middle is the typical home in Rockville 20853.

Estimated value$864,350
CheaperTypical $639,404Pricier

Pricier than 82% of homes nearby

Price per ft²$302
CheaperTypical $305Pricier

Pricier than 48% of homes nearby

Living area2,860 ft²
SmallerTypical 2,046 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.54 ac
SmallerTypical 0.23 acBigger

Bigger than 92% of homes nearby

Year built1968
OlderTypical 1965Newer

Newer than 73% of homes nearby

How 15309 Carrolton Rd ranks against every home in each area.
MeasureThis homeRockville 20853Montgomery County
Estimated valuepricier than$864,35082% of homes72% of homes
Price per ft²pricier than$30248% of homes50% of homes
Living areabigger than2,860 ft²80% of homes75% of homes
Lot sizebigger than0.54 ac92% of homes90% of homes
Year builtnewer than196873% of homes36% of homes

About 15309 Carrolton Rd

How much is 15309 Carrolton Rd, Rockville, MD worth?

The TopHap Estimate for 15309 Carrolton Rd, Rockville, MD is $864,350 as of Aug 30, 2026. The likely range is $786,518 to $942,182. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15309 Carrolton Rd, Rockville, MD last sell?

15309 Carrolton Rd, Rockville, MD last sold on Oct 26, 1987 for $240,000, according to the county's recorded deed.

How big is 15309 Carrolton Rd, Rockville, MD?

15309 Carrolton Rd, Rockville, MD has 2.5 bathrooms, 2,860 square feet of living space and a 0.54-acre lot.

When was 15309 Carrolton Rd, Rockville, MD built?

15309 Carrolton Rd, Rockville, MD was built in 1968, making it 58 years old. It is a bi-level home. The building has 2 stories.

What schools serve 15309 Carrolton Rd, Rockville, MD?

15309 Carrolton Rd, Rockville, MD is assigned to Flower Valley Elementary School (elementary), rated C+; Earle B. Wood Middle School (middle), rated B-; Rockville High School (high), rated B-. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15309 Carrolton Rd, Rockville, MD compare to other homes in Rockville 20853?

Among the 9,294 homes in Rockville 20853, it is worth more than 82% of them ($864,350 against a typical $639,404), its price per square foot is higher than 48% of them ($302 against a typical $305), it is bigger than 80% of them (2,860 ft² against a typical 2,046 ft²), its lot is bigger than 92% of them (0.54 ac against a typical 0.23 ac) and it is newer than 73% of them (1968 against a typical 1965). Measured against all of Montgomery County, it is worth more than 72% 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 15309 Carrolton Rd, Rockville, MD?

The 2025 property tax bill for 15309 Carrolton Rd, Rockville, MD was $8,307. The county assessed it at $743,967.

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