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Single Family ResidenceResidential
$413,698$367 / 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

4100 BALTIMORE ST

BALTIMORE, MD 21227
2
Baths
1,128 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$414K
$366K low$461K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,785 (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.$260,767 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$242,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$298,300

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.30 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.0.19
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.Yes

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

E
Baltimore Highlands Elementary SchoolC-
Elementary · Grades PK–5 · 0.5 mi
H
Lansdowne High SchoolD
High · Grades 9–12 · 1.1 mi
M
Lansdowne Middle SchoolC
Middle · Grades 6–8 · 1.4 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21227These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.36,316
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,271 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,029
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,537
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

4100 Baltimore St 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 85% of homes in Halethorpe 21227
  • Costs more per square foot than 96% of homes in Baltimore County
  • Smaller than 81% of homes in Baltimore County
  • Has a bigger lot than 77% of homes in Halethorpe 21227
  • Newer than 88% of homes in Halethorpe 21227

What homes are worth in Halethorpe 21227

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

This home
$139K$537K

This home is worth more than 85% of homes in Halethorpe 21227.

How it measures up in Halethorpe 21227

The dot is this home. The mark in the middle is the typical home in Halethorpe 21227.

Estimated value$413,698
CheaperTypical $306,917Pricier

Pricier than 85% of homes nearby

Price per ft²$367
CheaperTypical $232Pricier

Pricier than 95% of homes nearby

Living area1,128 ft²
SmallerTypical 1,246 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.19 ac
SmallerTypical 0.14 acBigger

Bigger than 77% of homes nearby

Year built1987
OlderTypical 1955Newer

Newer than 88% of homes nearby

How 4100 Baltimore St ranks against every home in each area.
MeasureThis homeHalethorpe 21227Baltimore County
Estimated valuepricier than$413,69885% of homes63% of homes
Price per ft²pricier than$36795% of homes96% of homes
Living areabigger than1,128 ft²33% of homes19% of homes
Lot sizebigger than0.19 ac77% of homes58% of homes
Year builtnewer than198788% of homes72% of homes

About 4100 Baltimore St

How much is 4100 Baltimore St, Baltimore, MD worth?

The TopHap Estimate for 4100 Baltimore St, Baltimore, MD is $413,698 as of Sep 24, 2026. The likely range is $366,332 to $461,064. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4100 Baltimore St, Baltimore, MD last sell?

4100 Baltimore St, Baltimore, MD last sold on Aug 19, 1988, according to the county's recorded deed.

How big is 4100 Baltimore St, Baltimore, MD?

4100 Baltimore St, Baltimore, MD has 2 bathrooms, 1,128 square feet of living space and a 0.19-acre lot.

When was 4100 Baltimore St, Baltimore, MD built?

4100 Baltimore St, Baltimore, MD was built in 1987, making it 39 years old. It is a split foyer home. The building has 1 story.

What schools serve 4100 Baltimore St, Baltimore, MD?

4100 Baltimore St, Baltimore, MD is assigned to Baltimore Highlands Elementary School (elementary), rated C-; Lansdowne High School (high), rated D; Lansdowne Middle School (middle), rated C. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4100 Baltimore St, Baltimore, MD compare to other homes in Halethorpe 21227?

Among the 10,181 homes in Halethorpe 21227, it is worth more than 85% of them ($413,698 against a typical $306,917), its price per square foot is higher than 95% of them ($367 against a typical $232), it is bigger than 33% of them (1,128 ft² against a typical 1,246 ft²), its lot is bigger than 77% of them (0.19 ac against a typical 0.14 ac) and it is newer than 88% of them (1987 against a typical 1955). Measured against all of Baltimore County, it is worth more than 63% 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 4100 Baltimore St, Baltimore, MD?

The 2025 property tax bill for 4100 Baltimore St, Baltimore, MD was $3,785. The county assessed it at $260,767.

More homes on Baltimore St

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Assigned schools

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