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TownhouseResidential
$629,074$301 / 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 95How 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 $485,639 on Aug 28, 2017

7730 RIVER ROCK WAY

COLUMBIA, MD 21044
2.5
Baths
2,089 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.
2,280 ft²
Lot SizeThe size of the land the home sits on, from county records.
2017
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$629K
$597K low$661K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$485,639 · Aug 28, 2017
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.$240,563
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$192,450
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.60%
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.$388,511
WELLS FARGO BK · recorded Aug 28, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,110 (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.$569,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$205,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$364,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$531,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$569,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Townhouse
StyleThe architectural style of the home, such as ranch or colonial.Townhouse
CountyHOWARD
Lot (acres)The size of the land the home sits on, from county records.0.05
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 133 ft²Patio · 60 ft²

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.

H
Atholton High SchoolA
High · Grades 9–12 · 0.8 mi
E
Clemens Crossing Elementary SchoolA
Elementary · Grades KG–5 · 1.3 mi
M
Wilde Lake Middle SchoolA-
Middle · Grades 6–8 · 2.4 mi

District: Howard County Public Schools

Neighborhood · ZIP 21044These 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.123
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
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.44,507
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,688 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,288
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$149,553
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

7730 River Rock Way 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.

  • Has a smaller lot than 84% of homes in Howard County
  • Newer than 98% of homes in Columbia 21044

What homes are worth in Columbia 21044

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

This home
$199K$1.2M

This home is worth more than 61% of homes in Columbia 21044.

How it measures up in Columbia 21044

The dot is this home. The mark in the middle is the typical home in Columbia 21044.

Estimated value$629,074
CheaperTypical $546,724Pricier

Pricier than 61% of homes nearby

Price per ft²$301
CheaperTypical $292Pricier

Pricier than 58% of homes nearby

Living area2,089 ft²
SmallerTypical 1,830 ft²Bigger

Bigger than 61% of homes nearby

Lot size2,280 ft²
SmallerTypical 0.31 acBigger

Bigger than 17% of homes nearby

Year built2017
OlderTypical 1983Newer

Newer than 98% of homes nearby

How 7730 River Rock Way ranks against every home in each area.
MeasureThis homeColumbia 21044Howard County
Estimated valuepricier than$629,07461% of homes50% of homes
Price per ft²pricier than$30158% of homes45% of homes
Living areabigger than2,089 ft²61% of homes53% of homes
Lot sizebigger than2,280 ft²17% of homes16% of homes
Year builtnewer than201798% of homes94% of homes

About 7730 River Rock Way

How much is 7730 River Rock Way, Columbia, MD worth?

The TopHap Estimate for 7730 River Rock Way, Columbia, MD is $629,074 as of Jul 14, 2026. The likely range is $596,861 to $661,287. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 7730 River Rock Way, Columbia, MD last sell?

7730 River Rock Way, Columbia, MD last sold on Aug 28, 2017 for $485,639, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 7730 River Rock Way, Columbia, MD?

7730 River Rock Way, Columbia, MD has 2.5 bathrooms, 2,089 square feet of living space and a 0.05-acre lot.

When was 7730 River Rock Way, Columbia, MD built?

7730 River Rock Way, Columbia, MD was built in 2017, making it 9 years old. It is a townhouse home. The building has 1 story.

What schools serve 7730 River Rock Way, Columbia, MD?

7730 River Rock Way, Columbia, MD is assigned to Atholton High School (high), rated A; Clemens Crossing Elementary School (elementary), rated A; Wilde Lake Middle School (middle), rated A-. All sit in Howard County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 7730 River Rock Way, Columbia, MD compare to other homes in Columbia 21044?

Among the 12,933 homes in Columbia 21044, it is worth more than 61% of them ($629,074 against a typical $546,724), its price per square foot is higher than 58% of them ($301 against a typical $292), it is bigger than 61% of them (2,089 ft² against a typical 1,830 ft²), its lot is bigger than 17% of them (2,280 ft² against a typical 0.31 ac) and it is newer than 98% of them (2017 against a typical 1983). Measured against all of Howard County, it is worth more than 50% 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 7730 River Rock Way, Columbia, MD?

The 2025 property tax bill for 7730 River Rock Way, Columbia, MD was $8,110. The county assessed it at $569,000.

More homes on River Rock Way

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Assigned schools

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