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Single Family ResidenceResidential
$290,951$266 / 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 97How 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 $205,000 on Jan 28, 2019

12 ALTON CT

BALTIMORE, MD 21237
1
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.
0.24 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

$291K
$282K low$300K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$205,000 · Jan 28, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,173 (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.$251,300 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$232,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$269,700

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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.0.24
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 · 104 ft²

Transaction History(2)

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
Nottingham Middle School
Middle · Grades 6–8 · 0.3 mi
E
Orems Elementary SchoolB
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

12 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 68% of homes in Baltimore County
  • Costs more per square foot than 90% of homes in Rosedale 21237
  • Smaller than 87% of homes in Rosedale 21237
  • Has a bigger lot than 77% 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
$158K$612K

This home is worth more than 43% 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$290,951
CheaperTypical $305,096Pricier

Pricier than 43% of homes nearby

Price per ft²$266
CheaperTypical $211Pricier

Pricier than 90% of homes nearby

Living area1,093 ft²
SmallerTypical 1,356 ft²Bigger

Bigger than 13% of homes nearby

Lot size0.24 ac
SmallerTypical 0.16 acBigger

Bigger than 77% of homes nearby

Year built1980
OlderTypical 1978Newer

Newer than 60% of homes nearby

How 12 Alton Ct ranks against every home in each area.
MeasureThis homeRosedale 21237Baltimore County
Estimated valuepricier than$290,95143% of homes32% of homes
Price per ft²pricier than$26690% of homes72% of homes
Living areabigger than1,093 ft²13% of homes16% of homes
Lot sizebigger than0.24 ac77% of homes68% of homes
Year builtnewer than198060% of homes64% of homes

About 12 Alton Ct

How much is 12 Alton Ct, Baltimore, MD worth?

The TopHap Estimate for 12 Alton Ct, Baltimore, MD is $290,951 as of Aug 30, 2026. The likely range is $281,644 to $300,258. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 Alton Ct, Baltimore, MD last sell?

12 Alton Ct, Baltimore, MD last sold on Jan 28, 2019 for $205,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 12 Alton Ct, Baltimore, MD?

12 Alton Ct, Baltimore, MD has 1 bathrooms, 1,093 square feet of living space and a 0.24-acre lot.

When was 12 Alton Ct, Baltimore, MD built?

12 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 12 Alton Ct, Baltimore, MD?

12 Alton Ct, Baltimore, MD is assigned to Nottingham Middle School (middle); Orems Elementary School (elementary), rated B; 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 12 Alton Ct, Baltimore, MD compare to other homes in Rosedale 21237?

Among the 9,172 homes in Rosedale 21237, it is worth more than 43% of them ($290,951 against a typical $305,096), its price per square foot is higher than 90% of them ($266 against a typical $211), it is bigger than 13% of them (1,093 ft² against a typical 1,356 ft²), its lot is bigger than 77% of them (0.24 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 32% 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 12 Alton Ct, Baltimore, MD?

The 2025 property tax bill for 12 Alton Ct, Baltimore, MD was $4,173. The county assessed it at $251,300.

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Assigned schools

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