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Single Family ResidenceResidential
$310,584$411 / 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 96How 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

510 COLE LN

MIDDLE RIVER, MD 21220
1
Baths
756 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.
2.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$311K
$298K low$323K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,294 (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.$574,033 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$560,367
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$587,700

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.36 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.48%
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.2.50
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
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.Shed · 200 ft²Porch · 704 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 · 0.7 mi
M
Stemmers Run Middle SchoolD
Middle · Grades 6–8 · 2.9 mi
H
Kenwood High SchoolD-
High · Grades 9–12 · 3.1 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%

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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

510 Cole Ln 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.

  • Costs more per square foot than 98% of homes in Middle River 21220
  • Among the smallest homes in Baltimore County
  • Among the largest lots in Middle River 21220
  • Older than 70% of 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
$165K$900K

This home is worth more than 42% 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$310,584
CheaperTypical $341,827Pricier

Pricier than 42% of homes nearby

Price per ft²$411
CheaperTypical $221Pricier

Pricier than 98% of homes nearby

Living area756 ft²
SmallerTypical 1,416 ft²Bigger

Bigger than 4% of homes nearby

Lot size2.5 ac
SmallerTypical 0.13 acBigger

Bigger than almost all homes nearby

Year built1954
OlderTypical 1980Newer

Newer than 31% of homes nearby

How 510 Cole Ln ranks against every home in each area.
MeasureThis homeMiddle River 21220Baltimore County
Estimated valuepricier than$310,58442% of homes36% of homes
Price per ft²pricier than$41198% of homes98% of homes
Living areabigger than756 ft²4% of homesalmost no homes
Lot sizebigger than2.5 acalmost all homes95% of homes
Year builtnewer than195431% of homes30% of homes

About 510 Cole Ln

How much is 510 Cole Ln, Middle River, MD worth?

The TopHap Estimate for 510 Cole Ln, Middle River, MD is $310,584 as of Jul 14, 2026. The likely range is $298,098 to $323,070. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 510 Cole Ln, Middle River, MD last sell?

510 Cole Ln, Middle River, MD last sold on Apr 1, 2003, according to the county's recorded deed.

How big is 510 Cole Ln, Middle River, MD?

510 Cole Ln, Middle River, MD has 1 bathrooms, 756 square feet of living space and a 2.50-acre lot.

When was 510 Cole Ln, Middle River, MD built?

510 Cole Ln, Middle River, MD was built in 1954, making it 72 years old. It is a conventional home. The building has 1 story.

What schools serve 510 Cole Ln, Middle River, MD?

510 Cole Ln, 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 510 Cole Ln, Middle River, MD compare to other homes in Middle River 21220?

Among the 13,094 homes in Middle River 21220, it is worth more than 42% of them ($310,584 against a typical $341,827), its price per square foot is higher than 98% of them ($411 against a typical $221), it is bigger than 4% of them (756 ft² against a typical 1,416 ft²), its lot is bigger than almost all of them (2.5 ac against a typical 0.13 ac) and it is newer than 31% of them (1954 against a typical 1980). Measured against all of Baltimore County, it is worth more than 36% 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 510 Cole Ln, Middle River, MD?

The 2025 property tax bill for 510 Cole Ln, Middle River, MD was $10,294. The county assessed it at $574,033.

More homes on Cole Ln

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