Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$310,357$280 / 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 87How 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 $9,572 on Apr 20, 2016

4146 BLACK ROCK RD

HAMPSTEAD, MD 21074
2
Baths
1,107 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$310K
$269K low$352K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$9,572 · Apr 20, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,836 (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.$254,400 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$246,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$270,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.0.26
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Baseboard
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 72 ft²Porch · 150 ft²

Transaction History(6)

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
Shiloh Middle SchoolB
Middle · Grades 6–8 · 0.8 mi
E
Spring Garden Elementary SchoolB
Elementary · Grades PK–5 · 1.0 mi
H
Manchester Valley High SchoolA-
High · Grades 9–12 · 3.7 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%

Owner Tools

Do you own this home?
Claim this home

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

4146 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 less than 88% of homes in Carroll County
  • Costs more per square foot than 71% of homes in Hampstead 21074
  • Smaller than 91% of homes in Hampstead 21074
  • Has a smaller lot than 74% of homes in Carroll County
  • Older than 85% 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
$201K$853K

This home is worth more than 19% 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$310,357
CheaperTypical $408,930Pricier

Pricier than 19% of homes nearby

Price per ft²$280
CheaperTypical $256Pricier

Pricier than 71% of homes nearby

Living area1,107 ft²
SmallerTypical 1,664 ft²Bigger

Bigger than 9% of homes nearby

Lot size0.26 ac
SmallerTypical 0.61 acBigger

Bigger than 34% of homes nearby

Year built1955
OlderTypical 1985Newer

Newer than 15% of homes nearby

How 4146 Black Rock Rd ranks against every home in each area.
MeasureThis homeHampstead 21074Carroll County
Estimated valuepricier than$310,35719% of homes12% of homes
Price per ft²pricier than$28071% of homes57% of homes
Living areabigger than1,107 ft²9% of homes11% of homes
Lot sizebigger than0.26 ac34% of homes26% of homes
Year builtnewer than195515% of homes15% of homes

About 4146 Black Rock Rd

How much is 4146 Black Rock Rd, Hampstead, MD worth?

The TopHap Estimate for 4146 Black Rock Rd, Hampstead, MD is $310,357 as of Aug 30, 2026. The likely range is $268,710 to $352,004. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4146 Black Rock Rd, Hampstead, MD last sell?

4146 Black Rock Rd, Hampstead, MD last sold on Apr 20, 2016 for $9,572, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 4146 Black Rock Rd, Hampstead, MD?

4146 Black Rock Rd, Hampstead, MD has 2 bathrooms, 1,107 square feet of living space and a 0.26-acre lot.

When was 4146 Black Rock Rd, Hampstead, MD built?

4146 Black Rock Rd, Hampstead, MD was built in 1955, making it 71 years old. The building has 1 story.

What schools serve 4146 Black Rock Rd, Hampstead, MD?

4146 Black Rock Rd, Hampstead, MD is assigned to Shiloh Middle School (middle), rated B; Spring Garden Elementary School (elementary), 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 4146 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 19% of them ($310,357 against a typical $408,930), its price per square foot is higher than 71% of them ($280 against a typical $256), it is bigger than 9% of them (1,107 ft² against a typical 1,664 ft²), its lot is bigger than 34% of them (0.26 ac against a typical 0.61 ac) and it is newer than 15% of them (1955 against a typical 1985). Measured against all of Carroll County, it is worth more than 12% 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 4146 Black Rock Rd, Hampstead, MD?

The 2025 property tax bill for 4146 Black Rock Rd, Hampstead, MD was $2,836. The county assessed it at $254,400.

More homes on Black Rock Rd

Closest homes

More homes in Hampstead 21074

Assigned schools

Explore the area

See this home in context

Open 4146 Black Rock Rd on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map