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Single Family ResidenceResidential
$1,610,953$242 / 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 98How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $945,000 on Dec 13, 2018

15021 ROCKING SPRING DR

ROCKVILLE, MD 20853
6
Baths
6,652 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.
3.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1914
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.6M
$1.6M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$945,000 · Dec 13, 2018
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$481,953
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$385,562
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.66%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$748,000
ATLANTIC COAST MTG · recorded Nov 20, 2020
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$381,000
BMO BANK NA

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,494 (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.$999,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$735,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$263,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$980,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$999,400

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.27 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
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.Slate
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 300 ft²Shed · 600 ft²Patio · 300 ft²

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.

M
Earle B. Wood Middle SchoolB-
Middle · Grades 6–8 · 0.6 mi
E
Flower Valley Elementary SchoolC+
Elementary · Grades KG–5 · 0.9 mi
H
Rockville High SchoolB-
High · Grades 9–12 · 1.2 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

15021 Rocking Spring Dr 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.

  • Among the most valuable homes in Rockville 20853
  • Costs less per square foot than 88% of homes in Rockville 20853
  • Among the largest homes in Rockville 20853
  • Among the largest lots in Rockville 20853
  • Among the oldest 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
$233K$1.2M

This home is worth more than almost all 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$1,610,953
CheaperTypical $640,557Pricier

Pricier than almost all homes nearby

Price per ft²$242
CheaperTypical $310Pricier

Pricier than 12% of homes nearby

Living area6,652 ft²
SmallerTypical 2,032 ft²Bigger

Bigger than almost all homes nearby

Lot size3.11 ac
SmallerTypical 0.23 acBigger

Bigger than almost all homes nearby

Year built1914
OlderTypical 1965Newer

Older than almost all homes nearby

How 15021 Rocking Spring Dr ranks against every home in each area.
MeasureThis homeRockville 20853Montgomery County
Estimated valuepricier than$1,610,953almost all homes93% of homes
Price per ft²pricier than$24212% of homes20% of homes
Living areabigger than6,652 ft²almost all homes98% of homes
Lot sizebigger than3.11 acalmost all homesalmost all homes
Year builtnewer than1914almost no homesalmost no homes

About 15021 Rocking Spring Dr

How much is 15021 Rocking Spring Dr, Rockville, MD worth?

The TopHap Estimate for 15021 Rocking Spring Dr, Rockville, MD is $1,610,953 as of Jul 14, 2026. The likely range is $1,583,338 to $1,638,568. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15021 Rocking Spring Dr, Rockville, MD last sell?

15021 Rocking Spring Dr, Rockville, MD last sold on Dec 13, 2018 for $945,000, according to the county's recorded deed.

How big is 15021 Rocking Spring Dr, Rockville, MD?

15021 Rocking Spring Dr, Rockville, MD has 6 bathrooms and 6,652 square feet of living space.

When was 15021 Rocking Spring Dr, Rockville, MD built?

15021 Rocking Spring Dr, Rockville, MD was built in 1914, making it 112 years old. It is a bi-level home. The building has 2 stories.

What schools serve 15021 Rocking Spring Dr, Rockville, MD?

15021 Rocking Spring Dr, Rockville, MD is assigned to Earle B. Wood Middle School (middle), rated B-; Flower Valley Elementary School (elementary), rated C+; 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 15021 Rocking Spring Dr, Rockville, MD compare to other homes in Rockville 20853?

Among the 9,292 homes in Rockville 20853, it is worth more than almost all of them ($1,610,953 against a typical $640,557), its price per square foot is higher than 12% of them ($242 against a typical $310), it is bigger than almost all of them (6,652 ft² against a typical 2,032 ft²), its lot is bigger than almost all of them (3.11 ac against a typical 0.23 ac) and it is newer than almost none of them (1914 against a typical 1965). Measured against all of Montgomery County, it is worth more than 93% 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 15021 Rocking Spring Dr, Rockville, MD?

The 2025 property tax bill for 15021 Rocking Spring Dr, Rockville, MD was $12,494. The county assessed it at $999,400.

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