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Single Family ResidenceResidential
$253,543$232 / 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 89How 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
Last sold for $112,000 on May 4, 1990

3 ALTON CT

BALTIMORE, MD 21237
2
Baths
1,093 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$254K
$226K low$282K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$112,000 · May 4, 1990

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,525 (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.$280,367 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$259,233
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$301,500

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.0.16
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 · 120 ft²Patio · 144 ft²Porch · 120 ft²

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

M
Nottingham Middle SchoolD-
Middle · Grades 6–8 · 0.4 mi
E
Orems Elementary SchoolC+
Elementary · Grades PK–5 · 1.6 mi
H
Overlea High SchoolD-
High · Grades 9–12 · 2.3 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21237These 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.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.31,022
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,671 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,346
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,623
Average tempThe average temperature here across a full year.56°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

3 Alton Ct 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 79% of homes in Baltimore County
  • Costs more per square foot than 68% of homes in Rosedale 21237
  • Smaller than 88% of homes in Rosedale 21237

What homes are worth in Rosedale 21237

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

This home
$153K$593K

This home is worth more than 24% of homes in Rosedale 21237.

How it measures up in Rosedale 21237

The dot is this home. The mark in the middle is the typical home in Rosedale 21237.

Estimated value$253,543
CheaperTypical $310,444Pricier

Pricier than 24% of homes nearby

Price per ft²$232
CheaperTypical $215Pricier

Pricier than 68% of homes nearby

Living area1,093 ft²
SmallerTypical 1,360 ft²Bigger

Bigger than 12% of homes nearby

Lot size0.16 ac
SmallerTypical 0.16 acBigger

Bigger than 50% of homes nearby

Year built1980
OlderTypical 1978Newer

Newer than 60% of homes nearby

How 3 Alton Ct ranks against every home in each area.
MeasureThis homeRosedale 21237Baltimore County
Estimated valuepricier than$253,54324% of homes21% of homes
Price per ft²pricier than$23268% of homes51% of homes
Living areabigger than1,093 ft²12% of homes16% of homes
Lot sizebigger than0.16 ac50% of homes48% of homes
Year builtnewer than198060% of homes64% of homes

About 3 Alton Ct

How much is 3 Alton Ct, Baltimore, MD worth?

The TopHap Estimate for 3 Alton Ct, Baltimore, MD is $253,543 as of Sep 24, 2026. The likely range is $225,539 to $281,547. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3 Alton Ct, Baltimore, MD last sell?

3 Alton Ct, Baltimore, MD last sold on May 4, 1990 for $112,000, according to the county's recorded deed.

How big is 3 Alton Ct, Baltimore, MD?

3 Alton Ct, Baltimore, MD has 2 bathrooms, 1,093 square feet of living space and a 0.16-acre lot.

When was 3 Alton Ct, Baltimore, MD built?

3 Alton Ct, Baltimore, MD was built in 1980, making it 46 years old. It is a split foyer home. The building has 1 story.

What schools serve 3 Alton Ct, Baltimore, MD?

3 Alton Ct, Baltimore, MD is assigned to Nottingham Middle School (middle), rated D-; Orems Elementary School (elementary), rated C+; Overlea 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 3 Alton Ct, Baltimore, MD compare to other homes in Rosedale 21237?

Among the 9,180 homes in Rosedale 21237, it is worth more than 24% of them ($253,543 against a typical $310,444), its price per square foot is higher than 68% of them ($232 against a typical $215), it is bigger than 12% of them (1,093 ft² against a typical 1,360 ft²), its lot is bigger than 50% of them (0.16 ac against a typical 0.16 ac) and it is newer than 60% of them (1980 against a typical 1978). Measured against all of Baltimore County, it is worth more than 21% 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 3 Alton Ct, Baltimore, MD?

The 2025 property tax bill for 3 Alton Ct, Baltimore, MD was $4,525. The county assessed it at $280,367.

More homes on Alton Ct

Closest homes

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Assigned schools

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