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Single Family ResidenceResidential
$538,310$273 / 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 Sep 24, 2026

4303 ROUNDNOLL RD

BALDWIN, MD 21013
2 / 1
Baths
1,970 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.
0.99 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$538K
$501K low$576K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,200 (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.$373,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$193,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$180,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$349,967
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$373,000

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.0.99
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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.Deck · 500 ft²Porch · 100 ft²

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

E
Carroll Manor Elementary SchoolA+
Elementary · Grades PK–5 · 1.2 mi
H
Dulaney High SchoolB-
High · Grades 9–12 · 5.9 mi
M
Cockeysville Middle SchoolB-
Middle · Grades 6–8 · 6.3 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21013These 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.62
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 100.47

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.4,797
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.307 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$166,280
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$190,242
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

4303 Roundnoll 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 80% of homes in Baltimore County
  • Costs more per square foot than 75% of homes in Baltimore County
  • Bigger than 73% of homes in Baltimore County
  • Has a bigger lot than 88% of homes in Baltimore County

What homes are worth in Baldwin 21013

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

This home
$348K$1.5M

This home is worth more than 24% of homes in Baldwin 21013.

How it measures up in Baldwin 21013

The dot is this home. The mark in the middle is the typical home in Baldwin 21013.

Estimated value$538,310
CheaperTypical $638,792Pricier

Pricier than 24% of homes nearby

Price per ft²$273
CheaperTypical $269Pricier

Pricier than 55% of homes nearby

Living area1,970 ft²
SmallerTypical 2,358 ft²Bigger

Bigger than 28% of homes nearby

Lot size0.99 ac
SmallerTypical 1.28 acBigger

Bigger than 31% of homes nearby

Year built1974
OlderTypical 1979Newer

Newer than 36% of homes nearby

How 4303 Roundnoll Rd ranks against every home in each area.
MeasureThis homeBaldwin 21013Baltimore County
Estimated valuepricier than$538,31024% of homes80% of homes
Price per ft²pricier than$27355% of homes75% of homes
Living areabigger than1,970 ft²28% of homes73% of homes
Lot sizebigger than0.99 ac31% of homes88% of homes
Year builtnewer than197436% of homes58% of homes

About 4303 Roundnoll Rd

How much is 4303 Roundnoll Rd, Baldwin, MD worth?

The TopHap Estimate for 4303 Roundnoll Rd, Baldwin, MD is $538,310 as of Sep 24, 2026. The likely range is $500,853 to $575,767. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4303 Roundnoll Rd, Baldwin, MD last sell?

4303 Roundnoll Rd, Baldwin, MD last sold on Oct 31, 1991, according to the county's recorded deed.

How big is 4303 Roundnoll Rd, Baldwin, MD?

4303 Roundnoll Rd, Baldwin, MD has 2 bathrooms, 1,970 square feet of living space and a 0.99-acre lot.

When was 4303 Roundnoll Rd, Baldwin, MD built?

4303 Roundnoll Rd, Baldwin, MD was built in 1974, making it 52 years old. It is a conventional home. The building has 1 story.

What schools serve 4303 Roundnoll Rd, Baldwin, MD?

4303 Roundnoll Rd, Baldwin, MD is assigned to Carroll Manor Elementary School (elementary), rated A+; Dulaney High School (high), rated B-; Cockeysville Middle School (middle), rated B-. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4303 Roundnoll Rd, Baldwin, MD compare to other homes in Baldwin 21013?

Among the 1,739 homes in Baldwin 21013, it is worth more than 24% of them ($538,310 against a typical $638,792), its price per square foot is higher than 55% of them ($273 against a typical $269), it is bigger than 28% of them (1,970 ft² against a typical 2,358 ft²), its lot is bigger than 31% of them (0.99 ac against a typical 1.28 ac) and it is newer than 36% of them (1974 against a typical 1979). Measured against all of Baltimore County, it is worth more than 80% 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 4303 Roundnoll Rd, Baldwin, MD?

The 2025 property tax bill for 4303 Roundnoll Rd, Baldwin, MD was $4,200. The county assessed it at $373,000.

More homes on Roundnoll Rd

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