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Single Family ResidenceResidential
$485,992$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 94How 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 $155,000 on Oct 20, 1997

4307 BLACK ROCK RD

HAMPSTEAD, MD 21074
2
Baths
2,012 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.
0.64 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
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

$486K
$455K low$517K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$155,000 · Oct 20, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,754 (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.$396,033 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$379,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$428,300

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.Split Level
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.0.64
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
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 · 110 ft²

Transaction History(2)

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
Spring Garden Elementary SchoolB
Elementary · Grades PK–5 · 0.8 mi
M
Shiloh Middle SchoolB
Middle · Grades 6–8 · 1.1 mi
H
Manchester Valley High SchoolA-
High · Grades 9–12 · 4.0 mi

District: Carroll County Public Schools

Neighborhood · ZIP 21074These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.9%
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.16,114
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.408 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$108,515
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$132,821
Average tempThe average temperature here across a full year.53°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%

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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

4307 Black Rock 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 69% of homes in Hampstead 21074
  • Costs less per square foot than 70% of homes in Carroll County
  • Bigger than 68% of homes in Hampstead 21074
  • Newer than 80% of homes in Hampstead 21074

What homes are worth in Hampstead 21074

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

This home
$193K$883K

This home is worth more than 69% of homes in Hampstead 21074.

How it measures up in Hampstead 21074

The dot is this home. The mark in the middle is the typical home in Hampstead 21074.

Estimated value$485,992
CheaperTypical $407,101Pricier

Pricier than 69% of homes nearby

Price per ft²$242
CheaperTypical $251Pricier

Pricier than 39% of homes nearby

Living area2,012 ft²
SmallerTypical 1,665 ft²Bigger

Bigger than 68% of homes nearby

Lot size0.64 ac
SmallerTypical 0.59 acBigger

Bigger than 51% of homes nearby

Year built1997
OlderTypical 1985Newer

Newer than 80% of homes nearby

How 4307 Black Rock Rd ranks against every home in each area.
MeasureThis homeHampstead 21074Carroll County
Estimated valuepricier than$485,99269% of homes52% of homes
Price per ft²pricier than$24239% of homes30% of homes
Living areabigger than2,012 ft²68% of homes61% of homes
Lot sizebigger than0.64 ac51% of homes51% of homes
Year builtnewer than199780% of homes75% of homes

About 4307 Black Rock Rd

How much is 4307 Black Rock Rd, Hampstead, MD worth?

The TopHap Estimate for 4307 Black Rock Rd, Hampstead, MD is $485,992 as of Jul 14, 2026. The likely range is $455,429 to $516,555. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4307 Black Rock Rd, Hampstead, MD last sell?

4307 Black Rock Rd, Hampstead, MD last sold on Oct 20, 1997 for $155,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4307 Black Rock Rd, Hampstead, MD?

4307 Black Rock Rd, Hampstead, MD has 2 bathrooms, 2,012 square feet of living space and a 0.64-acre lot.

When was 4307 Black Rock Rd, Hampstead, MD built?

4307 Black Rock Rd, Hampstead, MD was built in 1997, making it 29 years old. It is a split level home. The building has 2 stories.

What schools serve 4307 Black Rock Rd, Hampstead, MD?

4307 Black Rock Rd, Hampstead, MD is assigned to Spring Garden Elementary School (elementary), rated B; Shiloh Middle School (middle), rated B; Manchester Valley High School (high), rated A-. All sit in Carroll County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4307 Black Rock Rd, Hampstead, MD compare to other homes in Hampstead 21074?

Among the 5,648 homes in Hampstead 21074, it is worth more than 69% of them ($485,992 against a typical $407,101), its price per square foot is higher than 39% of them ($242 against a typical $251), it is bigger than 68% of them (2,012 ft² against a typical 1,665 ft²), its lot is bigger than 51% of them (0.64 ac against a typical 0.59 ac) and it is newer than 80% of them (1997 against a typical 1985). Measured against all of Carroll County, it is worth more than 52% 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 4307 Black Rock Rd, Hampstead, MD?

The 2025 property tax bill for 4307 Black Rock Rd, Hampstead, MD was $3,754. The county assessed it at $396,033.

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