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Single Family ResidenceResidential
$431,925$205 / 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 95How 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 $400,000 on Nov 3, 2021

1900 MARS RUN RD

BALTIMORE, MD 21221
4 / 1
Baths
2,108 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$432K
$411K low$453K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · Nov 3, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,554 (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.$351,167 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$317,433
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$384,900

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.0.14
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 240 ft²

Transaction History(8)

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(3)

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

E
Middlesex Elementary SchoolD-
Elementary · Grades EE–5 · 0.3 mi
M
Stemmers Run Middle SchoolD
Middle · Grades 6–8 · 0.6 mi
H
Kenwood High SchoolD-
High · Grades 9–12 · 0.8 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21221These 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.123
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.42,396
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,898 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,330
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,410
Average tempThe average temperature here across a full year.56°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

1900 Mars Run Rd 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 83% of homes in Essex 21221
  • Costs less per square foot than 70% of homes in Baltimore County
  • Bigger than 87% of homes in Essex 21221
  • Newer than 91% of homes in Baltimore County

What homes are worth in Essex 21221

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

This home
$144K$715K

This home is worth more than 83% of homes in Essex 21221.

How it measures up in Essex 21221

The dot is this home. The mark in the middle is the typical home in Essex 21221.

Estimated value$431,925
CheaperTypical $283,994Pricier

Pricier than 83% of homes nearby

Price per ft²$205
CheaperTypical $210Pricier

Pricier than 46% of homes nearby

Living area2,108 ft²
SmallerTypical 1,240 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.14 ac
SmallerTypical 0.16 acBigger

Bigger than 42% of homes nearby

Year built2003
OlderTypical 1957Newer

Newer than 87% of homes nearby

How 1900 Mars Run Rd ranks against every home in each area.
MeasureThis homeEssex 21221Baltimore County
Estimated valuepricier than$431,92583% of homes65% of homes
Price per ft²pricier than$20546% of homes30% of homes
Living areabigger than2,108 ft²87% of homes77% of homes
Lot sizebigger than0.14 ac42% of homes41% of homes
Year builtnewer than200387% of homes91% of homes

About 1900 Mars Run Rd

How much is 1900 Mars Run Rd, Baltimore, MD worth?

The TopHap Estimate for 1900 Mars Run Rd, Baltimore, MD is $431,925 as of Aug 30, 2026. The likely range is $411,233 to $452,617. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1900 Mars Run Rd, Baltimore, MD last sell?

1900 Mars Run Rd, Baltimore, MD last sold on Nov 3, 2021 for $400,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 1900 Mars Run Rd, Baltimore, MD?

1900 Mars Run Rd, Baltimore, MD has 4 bathrooms, 2,108 square feet of living space and a 0.14-acre lot.

When was 1900 Mars Run Rd, Baltimore, MD built?

1900 Mars Run Rd, Baltimore, MD was built in 2003, making it 23 years old. It is a conventional home. The building has 2 stories.

What schools serve 1900 Mars Run Rd, Baltimore, MD?

1900 Mars Run Rd, Baltimore, MD is assigned to Middlesex Elementary School (elementary), rated D-; Stemmers Run Middle School (middle), rated D; Kenwood 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 1900 Mars Run Rd, Baltimore, MD compare to other homes in Essex 21221?

Among the 12,677 homes in Essex 21221, it is worth more than 83% of them ($431,925 against a typical $283,994), its price per square foot is higher than 46% of them ($205 against a typical $210), it is bigger than 87% of them (2,108 ft² against a typical 1,240 ft²), its lot is bigger than 42% of them (0.14 ac against a typical 0.16 ac) and it is newer than 87% of them (2003 against a typical 1957). Measured against all of Baltimore County, it is worth more than 65% 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 1900 Mars Run Rd, Baltimore, MD?

The 2025 property tax bill for 1900 Mars Run Rd, Baltimore, MD was $4,554. The county assessed it at $351,167.

More homes on Mars Run Rd

Closest homes

More homes in Baltimore 21221

Assigned schools

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