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Single Family ResidenceResidential
$954,515$326 / 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 Aug 30, 2026

3309 ROSCOMMON DR

GLENELG, MD 21737
3.5
Baths
2,928 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.
0.92 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
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

$955K
$863K low$1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,967 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$756,700 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$705,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$807,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHOWARD
Lot (acres)The size of the land the home sits on, from county records.0.92
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 With Air Conditioning
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, 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.Patio · 425 ft²Porch · 76 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.

H
Glenelg High SchoolA+
High · Grades 9–12 · 0.3 mi
M
Folly Quarter Middle SchoolA
Middle · Grades 6–8 · 1.1 mi
E
Bushy Park Elementary SchoolA-
Elementary · Grades PK–5 · 2.1 mi

District: Howard County Public Schools

Neighborhood · ZIP 21737These 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.30
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.2,013
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.391 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$220,137
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$288,616
Average tempThe average temperature here across a full year.54°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%

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

3309 Roscommon 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 85% of homes in Howard County
  • Costs more per square foot than 65% of homes in Howard County
  • Bigger than 79% of homes in Howard County
  • Has a smaller lot than 96% of homes in Glenelg
  • Older than 89% of homes in Glenelg 21737

What homes are worth in Glenelg 21737

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

This home
$591K$2M

This home is worth more than 29% of homes in Glenelg 21737.

How it measures up in Glenelg 21737

The dot is this home. The mark in the middle is the typical home in Glenelg 21737.

Estimated value$954,515
CheaperTypical $1,218,648Pricier

Pricier than 29% of homes nearby

Price per ft²$326
CheaperTypical $318Pricier

Pricier than 56% of homes nearby

Living area2,928 ft²
SmallerTypical 3,925 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.92 ac
SmallerTypical 1.22 acBigger

Bigger than 5% of homes nearby

Year built1970
OlderTypical 1998Newer

Newer than 11% of homes nearby

How 3309 Roscommon Dr ranks against every home in each area.
MeasureThis homeGlenelgGlenelg 21737Howard County
Estimated valuepricier than$954,51546% of homes29% of homes85% of homes
Price per ft²pricier than$32645% of homes56% of homes65% of homes
Living areabigger than2,928 ft²51% of homes32% of homes79% of homes
Lot sizebigger than0.92 ac4% of homes5% of homes76% of homes
Year builtnewer than197018% of homes11% of homes13% of homes

About 3309 Roscommon Dr

How much is 3309 Roscommon Dr, Glenelg, MD worth?

The TopHap Estimate for 3309 Roscommon Dr, Glenelg, MD is $954,515 as of Aug 30, 2026. The likely range is $862,783 to $1,046,247. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3309 Roscommon Dr, Glenelg, MD last sell?

3309 Roscommon Dr, Glenelg, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3309 Roscommon Dr, Glenelg, MD?

3309 Roscommon Dr, Glenelg, MD has 3.5 bathrooms, 2,928 square feet of living space and a 0.92-acre lot.

When was 3309 Roscommon Dr, Glenelg, MD built?

3309 Roscommon Dr, Glenelg, MD was built in 1970, making it 56 years old. The building has 2 stories.

What schools serve 3309 Roscommon Dr, Glenelg, MD?

3309 Roscommon Dr, Glenelg, MD is assigned to Glenelg High School (high), rated A+; Folly Quarter Middle School (middle), rated A; Bushy Park Elementary School (elementary), rated A-. All sit in Howard County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3309 Roscommon Dr, Glenelg, MD compare to other homes in Glenelg 21737?

Among the 694 homes in Glenelg 21737, it is worth more than 29% of them ($954,515 against a typical $1,218,648), its price per square foot is higher than 56% of them ($326 against a typical $318), it is bigger than 32% of them (2,928 ft² against a typical 3,925 ft²), its lot is bigger than 5% of them (0.92 ac against a typical 1.22 ac) and it is newer than 11% of them (1970 against a typical 1998). Measured against all of Howard County, it is worth more than 85% 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 3309 Roscommon Dr, Glenelg, MD?

The 2026 property tax bill for 3309 Roscommon Dr, Glenelg, MD was $10,967. The county assessed it at $756,700.

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