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Single Family ResidenceResidential
$738,163$240 / 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 Jul 14, 2026
Last sold for $152,500 on Aug 14, 2009

4009 BAY DR

MIDDLE RIVER, MD 21220
3 / 1
Baths
3,072 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1939
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$738K
$656K low$820K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$152,500 · Aug 14, 2009
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.$738,163
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$590,530

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,159 (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.$609,467 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$568,933
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$650,000

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.63 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.0.28
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 288 ft²Boat access

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 · 1.9 mi
M
Stemmers Run Middle SchoolD
Middle · Grades 6–8 · 4.8 mi
H
Kenwood High SchoolD-
High · Grades 9–12 · 5.2 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%

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

4009 Bay Dr 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 95% of homes in Middle River 21220
  • Bigger than 95% of homes in Middle River 21220
  • Has a bigger lot than 80% of homes in Middle River 21220
  • Older than 94% of homes in Middle River 21220

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$875K

This home is worth more than 95% of 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$738,163
CheaperTypical $340,739Pricier

Pricier than 95% of homes nearby

Price per ft²$240
CheaperTypical $221Pricier

Pricier than 62% of homes nearby

Living area3,072 ft²
SmallerTypical 1,414 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.28 ac
SmallerTypical 0.13 acBigger

Bigger than 80% of homes nearby

Year built1939
OlderTypical 1980Newer

Newer than 6% of homes nearby

How 4009 Bay Dr ranks against every home in each area.
MeasureThis homeMiddle River 21220Baltimore County
Estimated valuepricier than$738,16395% of homes91% of homes
Price per ft²pricier than$24062% of homes54% of homes
Living areabigger than3,072 ft²95% of homes92% of homes
Lot sizebigger than0.28 ac80% of homes73% of homes
Year builtnewer than19396% of homes10% of homes

About 4009 Bay Dr

How much is 4009 Bay Dr, Middle River, MD worth?

The TopHap Estimate for 4009 Bay Dr, Middle River, MD is $738,163 as of Jul 14, 2026. The likely range is $656,055 to $820,271. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4009 Bay Dr, Middle River, MD last sell?

4009 Bay Dr, Middle River, MD last sold on Aug 14, 2009 for $152,500, according to the county's recorded deed.

How big is 4009 Bay Dr, Middle River, MD?

4009 Bay Dr, Middle River, MD has 3 bathrooms, 3,072 square feet of living space and a 0.28-acre lot.

When was 4009 Bay Dr, Middle River, MD built?

4009 Bay Dr, Middle River, MD was built in 1939, making it 87 years old. It is a conventional home. The building has 2 stories.

What schools serve 4009 Bay Dr, Middle River, MD?

4009 Bay Dr, 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 4009 Bay Dr, Middle River, MD compare to other homes in Middle River 21220?

Among the 13,087 homes in Middle River 21220, it is worth more than 95% of them ($738,163 against a typical $340,739), its price per square foot is higher than 62% of them ($240 against a typical $221), it is bigger than 95% of them (3,072 ft² against a typical 1,414 ft²), its lot is bigger than 80% of them (0.28 ac against a typical 0.13 ac) and it is newer than 6% of them (1939 against a typical 1980). Measured against all of Baltimore County, it is worth more than 91% 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 4009 Bay Dr, Middle River, MD?

The 2025 property tax bill for 4009 Bay Dr, Middle River, MD was $8,159. The county assessed it at $609,467.

Closest homes

More homes in Middle River 21220

Assigned schools

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