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Single Family ResidenceResidential
$1,009,662$320 / 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 $275,000 on Sep 10, 2018

912 FROG MORTAR RD

MIDDLE RIVER, MD 21220
3
Baths
3,154 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
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

$1M
$911K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$275,000 · Sep 10, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,914 (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.$1,062,667 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$994,067
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,132,200

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.3 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.1 percent flood zone

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.Conventional
CountyBaltimore
Lot (acres)The size of the land the home sits on, from county records.0.23
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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 · 72 ft²ElevatorPorch · 144 ft²Boat access

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
Seneca Elementary SchoolC-
Elementary · Grades PK–5 · 0.8 mi
M
Stemmers Run Middle SchoolD
Middle · Grades 6–8 · 3.1 mi
H
Kenwood High SchoolD-
High · Grades 9–12 · 3.4 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21220These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.48

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
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.43,388
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,388 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,236
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,046
Average tempThe average temperature here across a full year.56°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%

Owner Tools

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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

912 Frog Mortar 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 Middle River 21220
  • Costs more per square foot than 89% of homes in Middle River 21220
  • Bigger than 96% of homes in Middle River 21220
  • Has a bigger lot than 74% of homes in Middle River 21220
  • Among the newest homes in Baltimore County

What homes are worth in Middle River 21220

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

This home
$163K$878K

This home is worth more than almost all homes in Middle River 21220.

How it measures up in Middle River 21220

The dot is this home. The mark in the middle is the typical home in Middle River 21220.

Estimated value$1,009,662
CheaperTypical $342,856Pricier

Pricier than almost all homes nearby

Price per ft²$320
CheaperTypical $222Pricier

Pricier than 89% of homes nearby

Living area3,154 ft²
SmallerTypical 1,408 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.23 ac
SmallerTypical 0.13 acBigger

Bigger than 74% of homes nearby

Year built2024
OlderTypical 1980Newer

Newer than almost all homes nearby

How 912 Frog Mortar Rd ranks against every home in each area.
MeasureThis homeMiddle River 21220Baltimore County
Estimated valuepricier than$1,009,662almost all homes97% of homes
Price per ft²pricier than$32089% of homes89% of homes
Living areabigger than3,154 ft²96% of homes93% of homes
Lot sizebigger than0.23 ac74% of homes65% of homes
Year builtnewer than2024almost all homesalmost all homes

About 912 Frog Mortar Rd

How much is 912 Frog Mortar Rd, Middle River, MD worth?

The TopHap Estimate for 912 Frog Mortar Rd, Middle River, MD is $1,009,662 as of Jul 14, 2026. The likely range is $910,791 to $1,108,533. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 912 Frog Mortar Rd, Middle River, MD last sell?

912 Frog Mortar Rd, Middle River, MD last sold on Sep 10, 2018 for $275,000, according to the county's recorded deed.

How big is 912 Frog Mortar Rd, Middle River, MD?

912 Frog Mortar Rd, Middle River, MD has 3 bathrooms, 3,154 square feet of living space and a 0.23-acre lot.

When was 912 Frog Mortar Rd, Middle River, MD built?

912 Frog Mortar Rd, Middle River, MD was built in 2024, making it 2 years old. It is a conventional home. The building has 2 stories.

What schools serve 912 Frog Mortar Rd, Middle River, MD?

912 Frog Mortar Rd, Middle River, MD is assigned to Seneca Elementary School (elementary), rated C-; 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 912 Frog Mortar Rd, Middle River, MD compare to other homes in Middle River 21220?

Among the 13,092 homes in Middle River 21220, it is worth more than almost all of them ($1,009,662 against a typical $342,856), its price per square foot is higher than 89% of them ($320 against a typical $222), it is bigger than 96% of them (3,154 ft² against a typical 1,408 ft²), its lot is bigger than 74% of them (0.23 ac against a typical 0.13 ac) and it is newer than almost all of them (2024 against a typical 1980). Measured against all of Baltimore County, it is worth more than 97% 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 912 Frog Mortar Rd, Middle River, MD?

The 2025 property tax bill for 912 Frog Mortar Rd, Middle River, MD was $13,914. The county assessed it at $1,062,667.

More homes on Frog Mortar Rd

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More homes in Middle River 21220

Assigned schools

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