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Single Family ResidenceResidential
$446,226$261 / 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 93How 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 $400,000 on Sep 30, 2024

21 KEMPER AVE

WESTMINSTER, MD 21157
2
Baths
1,708 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$446K
$416K low$476K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Sep 30, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,621 (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.$305,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$74,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$231,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$275,067
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$305,000

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.0.21
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Radiant
CoolingThe type of cooling or air conditioning in the home.Yes
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.Patio · 200 ft²Porch · 168 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.

E
William Winchester Elementary SchoolB+
Elementary · Grades PK–5 · 0.2 mi
M
Westminster West Middle SchoolB+
Middle · Grades 6–8 · 0.3 mi
H
Winters Mill High SchoolA-
High · Grades 9–12 · 1.3 mi

District: Carroll County Public Schools

Neighborhood · ZIP 21157These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.41,419
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.542 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,034
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,439
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

21 Kemper Ave 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 80% of homes in Westminster 21157
  • Older than 88% of homes in Carroll County

What homes are worth in Westminster 21157

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

This home
$217K$948K

This home is worth more than 50% of homes in Westminster 21157.

How it measures up in Westminster 21157

The dot is this home. The mark in the middle is the typical home in Westminster 21157.

Estimated value$446,226
CheaperTypical $446,788Pricier

Pricier than 50% of homes nearby

Price per ft²$261
CheaperTypical $260Pricier

Pricier than 51% of homes nearby

Living area1,708 ft²
SmallerTypical 1,740 ft²Bigger

Bigger than 49% of homes nearby

Lot size0.22 ac
SmallerTypical 0.61 acBigger

Bigger than 20% of homes nearby

Year built1949
OlderTypical 1979Newer

Newer than 16% of homes nearby

How 21 Kemper Ave ranks against every home in each area.
MeasureThis homeWestminster 21157Carroll County
Estimated valuepricier than$446,22650% of homes43% of homes
Price per ft²pricier than$26151% of homes43% of homes
Living areabigger than1,708 ft²49% of homes46% of homes
Lot sizebigger than0.22 ac20% of homes20% of homes
Year builtnewer than194916% of homes12% of homes

About 21 Kemper Ave

How much is 21 Kemper Ave, Westminster, MD worth?

The TopHap Estimate for 21 Kemper Ave, Westminster, MD is $446,226 as of Aug 30, 2026. The likely range is $416,210 to $476,242. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Kemper Ave, Westminster, MD last sell?

21 Kemper Ave, Westminster, MD last sold on Sep 30, 2024 for $400,000, according to the county's recorded deed.

How big is 21 Kemper Ave, Westminster, MD?

21 Kemper Ave, Westminster, MD has 2 bathrooms, 1,708 square feet of living space and a 0.21-acre lot.

When was 21 Kemper Ave, Westminster, MD built?

21 Kemper Ave, Westminster, MD was built in 1949, making it 77 years old. The building has 1 story.

What schools serve 21 Kemper Ave, Westminster, MD?

21 Kemper Ave, Westminster, MD is assigned to William Winchester Elementary School (elementary), rated B+; Westminster West Middle School (middle), rated B+; Winters Mill 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 21 Kemper Ave, Westminster, MD compare to other homes in Westminster 21157?

Among the 12,568 homes in Westminster 21157, it is worth more than 50% of them ($446,226 against a typical $446,788), its price per square foot is higher than 51% of them ($261 against a typical $260), it is bigger than 49% of them (1,708 ft² against a typical 1,740 ft²), its lot is bigger than 20% of them (0.22 ac against a typical 0.61 ac) and it is newer than 16% of them (1949 against a typical 1979). Measured against all of Carroll County, it is worth more than 43% 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 21 Kemper Ave, Westminster, MD?

The 2025 property tax bill for 21 Kemper Ave, Westminster, MD was $4,621. The county assessed it at $305,000.

More homes on Kemper Ave

Closest homes

More homes in Westminster 21157

Assigned schools

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