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CondominiumResidential
$544,371$297 / 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 Sep 24, 2026
Last sold for $490,000 on Aug 17, 2023

12300 ROSSLARE RIDGE RD UNIT 308

TIMONIUM, MD 21093
Building report
2
Baths
1,833 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.
1,833 ft²
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.

Valuation

$544K
$525K low$564K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$490,000 · Aug 17, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,203 (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.$415,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$90,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$325,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$396,667
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$415,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyBaltimore
HeatingThe type of heating system in the home.Yes
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.No

Transaction History(5)

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
Mays Chapel Elementary SchoolA
Elementary · Grades EE–5 · 0.3 mi
H
Dulaney High SchoolA-
High · Grades 9–12 · 2.9 mi
M
Ridgely Middle SchoolB+
Middle · Grades 6–8 · 3.5 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21093These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.6%
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.40,327
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,908 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,223
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,073
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

12300 Rosslare Ridge Rd Unit 308 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 80% of homes in Baltimore County
  • Costs more per square foot than 84% of homes in Baltimore County
  • Bigger than 68% of homes in Baltimore County
  • Has a smaller lot than 85% of homes in Lutherville Timonium 21093
  • Newer than 90% of homes in Lutherville Timonium 21093

What homes are worth in Lutherville Timonium 21093

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

This home
$276K$1.6M

This home is worth more than 58% of homes in Lutherville Timonium 21093.

How it measures up in Lutherville Timonium 21093

The dot is this home. The mark in the middle is the typical home in Lutherville Timonium 21093.

Estimated value$544,371
CheaperTypical $512,158Pricier

Pricier than 58% of homes nearby

Price per ft²$297
CheaperTypical $280Pricier

Pricier than 63% of homes nearby

Living area1,833 ft²
SmallerTypical 1,804 ft²Bigger

Bigger than 52% of homes nearby

Lot size1,833 ft²
SmallerTypical 0.22 acBigger

Bigger than 15% of homes nearby

Year built1999
OlderTypical 1969Newer

Newer than 90% of homes nearby

How 12300 Rosslare Ridge Rd Unit 308 ranks against every home in each area.
MeasureThis homeLutherville Timonium 21093Baltimore County
Estimated valuepricier than$544,37158% of homes80% of homes
Price per ft²pricier than$29763% of homes84% of homes
Living areabigger than1,833 ft²52% of homes68% of homes
Lot sizebigger than1,833 ft²15% of homes15% of homes
Year builtnewer than199990% of homes87% of homes

About 12300 Rosslare Ridge Rd Unit 308

How much is 12300 Rosslare Ridge Rd Unit 308, Timonium, MD worth?

The TopHap Estimate for 12300 Rosslare Ridge Rd Unit 308, Timonium, MD is $544,371 as of Sep 24, 2026. The likely range is $525,115 to $563,627. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12300 Rosslare Ridge Rd Unit 308, Timonium, MD last sell?

12300 Rosslare Ridge Rd Unit 308, Timonium, MD last sold on Aug 17, 2023 for $490,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 12300 Rosslare Ridge Rd Unit 308, Timonium, MD?

12300 Rosslare Ridge Rd Unit 308, Timonium, MD has 2 bathrooms and 1,833 square feet of living space.

When was 12300 Rosslare Ridge Rd Unit 308, Timonium, MD built?

12300 Rosslare Ridge Rd Unit 308, Timonium, MD was built in 1999, making it 27 years old. It is a condo/apartment home.

What schools serve 12300 Rosslare Ridge Rd Unit 308, Timonium, MD?

12300 Rosslare Ridge Rd Unit 308, Timonium, MD is assigned to Mays Chapel Elementary School (elementary), rated A; Dulaney High School (high), rated A-; Ridgely Middle School (middle), rated B+. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12300 Rosslare Ridge Rd Unit 308, Timonium, MD compare to other homes in Lutherville Timonium 21093?

Among the 14,261 homes in Lutherville Timonium 21093, it is worth more than 58% of them ($544,371 against a typical $512,158), its price per square foot is higher than 63% of them ($297 against a typical $280), it is bigger than 52% of them (1,833 ft² against a typical 1,804 ft²), its lot is bigger than 15% of them (1,833 ft² against a typical 0.22 ac) and it is newer than 90% of them (1999 against a typical 1969). Measured against all of Baltimore County, it is worth more than 80% 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 12300 Rosslare Ridge Rd Unit 308, Timonium, MD?

The 2025 property tax bill for 12300 Rosslare Ridge Rd Unit 308, Timonium, MD was $6,203. The county assessed it at $415,000.

More homes on Rosslare Ridge Rd Unit 308

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Assigned schools

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