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Single Family ResidenceResidential
$395,639$343 / 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 Oct 21, 2026
Last sold for $259,900 on Sep 12, 2007

311 HARLEM LN

CATONSVILLE, MD 21228
1.5
Baths
1,152 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1965
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$396K
$384K low$407K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$259,900 · Sep 12, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,301 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$280,767 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$263,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$315,900

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.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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.Central
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 · 228 ft²Patio · 144 ft²Porch · 144 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.

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
Westowne Elementary SchoolC+
Elementary · Grades PK–5 · 0.3 mi
H
Catonsville High SchoolB-
High · Grades 9–12 · 1.6 mi
M
Catonsville Middle SchoolB-
Middle · Grades 6–8 · 2.5 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21228These 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.77
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
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.50,431
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,282 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$108,332
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$127,045
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

311 Harlem Ln 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 94% of homes in Baltimore County
  • Smaller than 84% of homes in Catonsville 21228

What homes are worth in Catonsville 21228

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

This home
$247K$886K

This home is worth more than 36% of homes in Catonsville 21228.

How it measures up in Catonsville 21228

The dot is this home. The mark in the middle is the typical home in Catonsville 21228.

Estimated value$395,639
CheaperTypical $437,796Pricier

Pricier than 36% of homes nearby

Price per ft²$343
CheaperTypical $273Pricier

Pricier than 86% of homes nearby

Living area1,152 ft²
SmallerTypical 1,512 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.17 ac
SmallerTypical 0.18 acBigger

Bigger than 46% of homes nearby

Year built1965
OlderTypical 1958Newer

Newer than 62% of homes nearby

How 311 Harlem Ln ranks against every home in each area.
MeasureThis homeCatonsville 21228Baltimore County
Estimated valuepricier than$395,63936% of homes59% of homes
Price per ft²pricier than$34386% of homes94% of homes
Living areabigger than1,152 ft²16% of homes22% of homes
Lot sizebigger than0.17 ac46% of homes51% of homes
Year builtnewer than196562% of homes52% of homes

About 311 Harlem Ln

How much is 311 Harlem Ln, Catonsville, MD worth?

The TopHap Estimate for 311 Harlem Ln, Catonsville, MD is $395,639 as of Oct 21, 2026. The likely range is $384,284 to $406,994. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 311 Harlem Ln, Catonsville, MD last sell?

311 Harlem Ln, Catonsville, MD last sold on Sep 12, 2007 for $259,900, according to the county's recorded deed.

How big is 311 Harlem Ln, Catonsville, MD?

311 Harlem Ln, Catonsville, MD has 1.5 bathrooms, 1,152 square feet of living space and a 0.17-acre lot.

When was 311 Harlem Ln, Catonsville, MD built?

311 Harlem Ln, Catonsville, MD was built in 1965, making it 61 years old. It is a conventional home. The building has 1 story.

What schools serve 311 Harlem Ln, Catonsville, MD?

311 Harlem Ln, Catonsville, MD is assigned to Westowne Elementary School (elementary), rated C+; Catonsville High School (high), rated B-; Catonsville 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 311 Harlem Ln, Catonsville, MD compare to other homes in Catonsville 21228?

Among the 15,190 homes in Catonsville 21228, it is worth more than 36% of them ($395,639 against a typical $437,796), its price per square foot is higher than 86% of them ($343 against a typical $273), it is bigger than 16% of them (1,152 ft² against a typical 1,512 ft²), its lot is bigger than 46% of them (0.17 ac against a typical 0.18 ac) and it is newer than 62% of them (1965 against a typical 1958). Measured against all of Baltimore County, it is worth more than 59% 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 311 Harlem Ln, Catonsville, MD?

The 2024 property tax bill for 311 Harlem Ln, Catonsville, MD was $4,301. The county assessed it at $280,767.

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