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Single Family ResidenceResidential
$366,746$357 / 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 Aug 30, 2026
Last sold for $165,000 on Mar 31, 2011

4121 WINDMILL CIR

RANDALLSTOWN, MD 21133
2
Baths
1,026 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1991
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$367K
$344K low$390K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$165,000 · Mar 31, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,339 (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.$254,867 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$226,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$311,400

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 Foyer
CountyBaltimore
Lot (acres)The size of the land the home sits on, from county records.0.14
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
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 · 180 ft²

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

E
Winand Elementary SchoolB
Elementary · Grades EE–5 · 0.7 mi
M
Northwest Academy of Health Sciences SchoolD+
Middle · Grades 6–8 · 1.3 mi
H
Randallstown High SchoolD
High · Grades 9–12 · 1.3 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21133These 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.92
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 100.40

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.27,963
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,709 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,976
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$111,908
Average tempThe average temperature here across a full year.54°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

4121 Windmill Cir 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.

  • Costs more per square foot than 98% of homes in Randallstown 21133
  • Smaller than 97% of homes in Randallstown 21133
  • Has a smaller lot than 76% of homes in Randallstown 21133
  • Newer than 77% of homes in Baltimore County

What homes are worth in Randallstown 21133

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

This home
$246K$684K

This home is worth more than 52% of homes in Randallstown 21133.

How it measures up in Randallstown 21133

The dot is this home. The mark in the middle is the typical home in Randallstown 21133.

Estimated value$366,746
CheaperTypical $362,190Pricier

Pricier than 52% of homes nearby

Price per ft²$357
CheaperTypical $225Pricier

Pricier than 98% of homes nearby

Living area1,026 ft²
SmallerTypical 1,562 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.14 ac
SmallerTypical 0.2 acBigger

Bigger than 24% of homes nearby

Year built1991
OlderTypical 1972Newer

Newer than 76% of homes nearby

How 4121 Windmill Cir ranks against every home in each area.
MeasureThis homeRandallstown 21133Baltimore County
Estimated valuepricier than$366,74652% of homes53% of homes
Price per ft²pricier than$35798% of homes95% of homes
Living areabigger than1,026 ft²3% of homes12% of homes
Lot sizebigger than0.14 ac24% of homes40% of homes
Year builtnewer than199176% of homes77% of homes

About 4121 Windmill Cir

How much is 4121 Windmill Cir, Randallstown, MD worth?

The TopHap Estimate for 4121 Windmill Cir, Randallstown, MD is $366,746 as of Aug 30, 2026. The likely range is $343,958 to $389,534. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4121 Windmill Cir, Randallstown, MD last sell?

4121 Windmill Cir, Randallstown, MD last sold on Mar 31, 2011 for $165,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 4121 Windmill Cir, Randallstown, MD?

4121 Windmill Cir, Randallstown, MD has 2 bathrooms, 1,026 square feet of living space and a 0.14-acre lot.

When was 4121 Windmill Cir, Randallstown, MD built?

4121 Windmill Cir, Randallstown, MD was built in 1991, making it 35 years old. It is a split foyer home. The building has 1 story.

What schools serve 4121 Windmill Cir, Randallstown, MD?

4121 Windmill Cir, Randallstown, MD is assigned to Winand Elementary School (elementary), rated B; Northwest Academy of Health Sciences School (middle), rated D+; Randallstown High School (high), rated D. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4121 Windmill Cir, Randallstown, MD compare to other homes in Randallstown 21133?

Among the 8,728 homes in Randallstown 21133, it is worth more than 52% of them ($366,746 against a typical $362,190), its price per square foot is higher than 98% of them ($357 against a typical $225), it is bigger than 3% of them (1,026 ft² against a typical 1,562 ft²), its lot is bigger than 24% of them (0.14 ac against a typical 0.2 ac) and it is newer than 76% of them (1991 against a typical 1972). Measured against all of Baltimore County, it is worth more than 53% 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 4121 Windmill Cir, Randallstown, MD?

The 2025 property tax bill for 4121 Windmill Cir, Randallstown, MD was $4,339. The county assessed it at $254,867.

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