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Single Family ResidenceResidential
$668,472$217 / 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 90How 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 $45,000 on Aug 31, 1995

638 ROCKY HILL RD

SPARKS, MD 21152
3 / 1
Baths
3,080 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.
1.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$668K
$602K low$735K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$45,000 · Aug 31, 1995

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,208 (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.$467,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$164,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$303,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$437,633
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$467,700

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.35 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.Conventional
CountyBaltimore
Lot (acres)The size of the land the home sits on, from county records.1.10
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
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, 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 · 216 ft²

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

M
Cockeysville Middle SchoolB
Middle · Grades 6–8 · 3.6 mi
E
Mays Chapel Elementary SchoolA
Elementary · Grades EE–5 · 4.4 mi
H
Dulaney High SchoolA-
High · Grades 9–12 · 4.8 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21152These 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.75
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 100.50

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.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.6%
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.6,671
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.294 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$143,621
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$177,923
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

638 Rocky Hill 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 88% of homes in Baltimore County
  • Costs less per square foot than 90% of homes in Sparks Glencoe 21152
  • Bigger than 92% of homes in Baltimore County
  • Has a bigger lot than 90% of homes in Baltimore County
  • Newer than 84% of homes in Baltimore County

What homes are worth in Sparks Glencoe 21152

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

This home
$259K$1.7M

This home is worth more than 68% of homes in Sparks Glencoe 21152.

How it measures up in Sparks Glencoe 21152

The dot is this home. The mark in the middle is the typical home in Sparks Glencoe 21152.

Estimated value$668,472
CheaperTypical $495,943Pricier

Pricier than 68% of homes nearby

Price per ft²$217
CheaperTypical $269Pricier

Pricier than 10% of homes nearby

Living area3,080 ft²
SmallerTypical 1,738 ft²Bigger

Bigger than 77% of homes nearby

Lot size1.1 ac
SmallerTypical 0.93 acBigger

Bigger than 55% of homes nearby

Year built1996
OlderTypical 1987Newer

Newer than 79% of homes nearby

How 638 Rocky Hill Rd ranks against every home in each area.
MeasureThis homeSparks Glencoe 21152Baltimore County
Estimated valuepricier than$668,47268% of homes88% of homes
Price per ft²pricier than$21710% of homes40% of homes
Living areabigger than3,080 ft²77% of homes92% of homes
Lot sizebigger than1.1 ac55% of homes90% of homes
Year builtnewer than199679% of homes84% of homes

About 638 Rocky Hill Rd

How much is 638 Rocky Hill Rd, Sparks, MD worth?

The TopHap Estimate for 638 Rocky Hill Rd, Sparks, MD is $668,472 as of Sep 24, 2026. The likely range is $601,536 to $735,408. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 638 Rocky Hill Rd, Sparks, MD last sell?

638 Rocky Hill Rd, Sparks, MD last sold on Aug 31, 1995 for $45,000, according to the county's recorded deed.

How big is 638 Rocky Hill Rd, Sparks, MD?

638 Rocky Hill Rd, Sparks, MD has 3 bathrooms, 3,080 square feet of living space and a 1.10-acre lot.

When was 638 Rocky Hill Rd, Sparks, MD built?

638 Rocky Hill Rd, Sparks, MD was built in 1996, making it 30 years old. It is a conventional home. The building has 3 stories.

What schools serve 638 Rocky Hill Rd, Sparks, MD?

638 Rocky Hill Rd, Sparks, MD is assigned to Cockeysville Middle School (middle), rated B; Mays Chapel Elementary School (elementary), rated A; Dulaney High School (high), rated A-. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 638 Rocky Hill Rd, Sparks, MD compare to other homes in Sparks Glencoe 21152?

Among the 2,216 homes in Sparks Glencoe 21152, it is worth more than 68% of them ($668,472 against a typical $495,943), its price per square foot is higher than 10% of them ($217 against a typical $269), it is bigger than 77% of them (3,080 ft² against a typical 1,738 ft²), its lot is bigger than 55% of them (1.1 ac against a typical 0.93 ac) and it is newer than 79% of them (1996 against a typical 1987). Measured against all of Baltimore County, it is worth more than 88% 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 638 Rocky Hill Rd, Sparks, MD?

The 2025 property tax bill for 638 Rocky Hill Rd, Sparks, MD was $5,208. The county assessed it at $467,700.

More homes on Rocky Hill Rd

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