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Single Family ResidenceResidential
$859,274$151 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $675,375 on Jul 29, 2015

9215 MARDELLA RIDGE RD

RANDALLSTOWN, MD 21133
4
Baths
5,702 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.
2.16 ac
Lot SizeThe size of the land the home sits on, from county records.
2015
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$859K
$770K low$949K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$675,375 · Jul 29, 2015
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$791,752
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$633,402
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.9%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$67,522
SECRETARY OF HOUSING AND URBAN DEVELOPMEN · E · 6.11% · recorded Jun 5, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,059 (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.$707,767 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$663,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$797,300

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.45
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
15
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
77
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
93
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
CountyBALTIMORE
Lot (acres)The size of the land the home sits on, from county records.2.16
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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 · 546 ft²Patio · 156 ft²Porch · 168 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.

E
Randallstown Elementary SchoolC
Elementary · Grades KG–5 · 1.1 mi
H
Randallstown High SchoolD
High · Grades 9–12 · 1.6 mi
M
Windsor Mill Middle SchoolC-
Middle · Grades 6–8 · 1.9 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21133These 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.86
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.24%
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.27,963
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,709 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,976
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$111,908
Average tempThe average temperature here across a full year.54°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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

9215 Mardella Ridge 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.

  • Among the most valuable homes in Randallstown 21133
  • Costs less per square foot than 97% of homes in Randallstown 21133
  • Among the largest homes in Randallstown 21133
  • Has a bigger lot than 98% of homes in Randallstown 21133
  • Among the newest homes in Randallstown 21133

What homes are worth in Randallstown 21133

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

This home
$247K$664K

This home is worth more than almost all homes in Randallstown 21133.

How it measures up in Randallstown 21133

The dot is this home. The mark in the middle is the typical home in Randallstown 21133.

Estimated value$859,274
CheaperTypical $367,806Pricier

Pricier than almost all homes nearby

Price per ft²$151
CheaperTypical $230Pricier

Pricier than 3% of homes nearby

Living area5,702 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than almost all homes nearby

Lot size2.16 ac
SmallerTypical 0.2 acBigger

Bigger than 98% of homes nearby

Year built2015
OlderTypical 1972Newer

Newer than almost all homes nearby

How 9215 Mardella Ridge Rd ranks against every home in each area.
MeasureThis homeRandallstown 21133Baltimore County
Estimated valuepricier than$859,274almost all homes95% of homes
Price per ft²pricier than$1513% of homes4% of homes
Living areabigger than5,702 ft²almost all homesalmost all homes
Lot sizebigger than2.16 ac98% of homes95% of homes
Year builtnewer than2015almost all homes97% of homes

About 9215 Mardella Ridge Rd

How much is 9215 Mardella Ridge Rd, Randallstown, MD worth?

The TopHap Estimate for 9215 Mardella Ridge Rd, Randallstown, MD is $859,274 as of Jul 14, 2026. The likely range is $769,916 to $948,632. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9215 Mardella Ridge Rd, Randallstown, MD last sell?

9215 Mardella Ridge Rd, Randallstown, MD last sold on Jul 29, 2015 for $675,375, according to the county's recorded deed.

How big is 9215 Mardella Ridge Rd, Randallstown, MD?

9215 Mardella Ridge Rd, Randallstown, MD has 4 bathrooms, 5,702 square feet of living space and a 2.16-acre lot.

When was 9215 Mardella Ridge Rd, Randallstown, MD built?

9215 Mardella Ridge Rd, Randallstown, MD was built in 2015, making it 11 years old. The building has 2 stories.

What schools serve 9215 Mardella Ridge Rd, Randallstown, MD?

9215 Mardella Ridge Rd, Randallstown, MD is assigned to Randallstown Elementary School (elementary), rated C; Randallstown High School (high), rated D; Windsor Mill 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 9215 Mardella Ridge Rd, Randallstown, MD compare to other homes in Randallstown 21133?

Among the 8,733 homes in Randallstown 21133, it is worth more than almost all of them ($859,274 against a typical $367,806), its price per square foot is higher than 3% of them ($151 against a typical $230), it is bigger than almost all of them (5,702 ft² against a typical 1,536 ft²), its lot is bigger than 98% of them (2.16 ac against a typical 0.2 ac) and it is newer than almost all of them (2015 against a typical 1972). Measured against all of Baltimore County, it is worth more than 95% 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 9215 Mardella Ridge Rd, Randallstown, MD?

The 2024 property tax bill for 9215 Mardella Ridge Rd, Randallstown, MD was $8,059. The county assessed it at $707,767.

More homes on Mardella Ridge Rd

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Assigned schools

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