Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$435,907$253 / 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 96How 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 $309,000 on Jan 9, 2008

320 HARLEM LN

BALTIMORE, MD 21228
3 / 1
Baths
1,726 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1925
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$436K
$417K low$455K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$309,000 · Jan 9, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,357 (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.$351,600 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$331,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$392,000

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.0.15
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Yes
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 · 300 ft²Porch · 270 ft²

Transaction History(1)

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.

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%

Owner Tools

Do you own this home?
Claim this home

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

320 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.

  • Worth more than 67% of homes in Baltimore County
  • Costs less per square foot than 66% of homes in Catonsville 21228
  • Older than 95% of homes in Baltimore County

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 49% 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$435,907
CheaperTypical $437,796Pricier

Pricier than 49% of homes nearby

Price per ft²$253
CheaperTypical $273Pricier

Pricier than 34% of homes nearby

Living area1,726 ft²
SmallerTypical 1,512 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.15 ac
SmallerTypical 0.18 acBigger

Bigger than 37% of homes nearby

Year built1925
OlderTypical 1958Newer

Newer than 9% of homes nearby

How 320 Harlem Ln ranks against every home in each area.
MeasureThis homeCatonsville 21228Baltimore County
Estimated valuepricier than$435,90749% of homes67% of homes
Price per ft²pricier than$25334% of homes65% of homes
Living areabigger than1,726 ft²63% of homes63% of homes
Lot sizebigger than0.15 ac37% of homes46% of homes
Year builtnewer than19259% of homes5% of homes

About 320 Harlem Ln

How much is 320 Harlem Ln, Baltimore, MD worth?

The TopHap Estimate for 320 Harlem Ln, Baltimore, MD is $435,907 as of Oct 21, 2026. The likely range is $416,861 to $454,953. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 320 Harlem Ln, Baltimore, MD last sell?

320 Harlem Ln, Baltimore, MD last sold on Jan 9, 2008 for $309,000, according to the county's recorded deed.

How big is 320 Harlem Ln, Baltimore, MD?

320 Harlem Ln, Baltimore, MD has 3 bathrooms, 1,726 square feet of living space and a 0.15-acre lot.

When was 320 Harlem Ln, Baltimore, MD built?

320 Harlem Ln, Baltimore, MD was built in 1925, making it 101 years old. It is a conventional home. The building has 2 stories.

What schools serve 320 Harlem Ln, Baltimore, MD?

320 Harlem Ln, Baltimore, 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 320 Harlem Ln, Baltimore, MD compare to other homes in Catonsville 21228?

Among the 15,190 homes in Catonsville 21228, it is worth more than 49% of them ($435,907 against a typical $437,796), its price per square foot is higher than 34% of them ($253 against a typical $273), it is bigger than 63% of them (1,726 ft² against a typical 1,512 ft²), its lot is bigger than 37% of them (0.15 ac against a typical 0.18 ac) and it is newer than 9% of them (1925 against a typical 1958). Measured against all of Baltimore County, it is worth more than 67% 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 320 Harlem Ln, Baltimore, MD?

The 2025 property tax bill for 320 Harlem Ln, Baltimore, MD was $5,357. The county assessed it at $351,600.

More homes on Harlem Ln

Closest homes

More homes in Baltimore 21228

Assigned schools

Explore the area

See this home in context

Open 320 Harlem Ln on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map