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CondominiumResidential
$412,900$286 / 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 86How 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 $407,500 on Mar 25, 2026

12240 ROUNDWOOD RD UNIT 405

LUTHERVILLE TIMONIUM, MD 21093
Building report
2
Baths
1,442 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.
1,442 ft²
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.

Valuation

$413K
$357K low$469K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$407,500 · Mar 25, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,918 (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.$310,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$95,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$215,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$303,333
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$310,000

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
Lot (acres)The size of the land the home sits on, from county records.0.03
HeatingThe type of heating system in the home.None

Transaction History(3)

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 PK–5 · 0.3 mi
H
Dulaney High SchoolB-
High · Grades 9–12 · 2.8 mi
M
Ridgely Middle SchoolA
Middle · Grades 6–8 · 3.4 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

12240 Roundwood Rd Unit 405 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 less than 79% of homes in Lutherville Timonium 21093
  • Costs more per square foot than 80% of homes in Baltimore County
  • Smaller than 77% of homes in Lutherville Timonium 21093
  • Has a smaller lot than 94% of homes in Baltimore County
  • Newer than 95% 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
$279K$1.5M

This home is worth more than 21% 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$412,900
CheaperTypical $510,194Pricier

Pricier than 21% of homes nearby

Price per ft²$286
CheaperTypical $280Pricier

Pricier than 55% of homes nearby

Living area1,442 ft²
SmallerTypical 1,811 ft²Bigger

Bigger than 23% of homes nearby

Lot size1,442 ft²
SmallerTypical 0.23 acBigger

Bigger than 8% of homes nearby

Year built2003
OlderTypical 1970Newer

Newer than 95% of homes nearby

How 12240 Roundwood Rd Unit 405 ranks against every home in each area.
MeasureThis homeLutherville Timonium 21093Baltimore County
Estimated valuepricier than$412,90021% of homes63% of homes
Price per ft²pricier than$28655% of homes80% of homes
Living areabigger than1,442 ft²23% of homes48% of homes
Lot sizebigger than1,442 ft²8% of homes6% of homes
Year builtnewer than200395% of homes91% of homes

About 12240 Roundwood Rd Unit 405

How much is 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD worth?

The TopHap Estimate for 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD is $412,900 as of Sep 24, 2026. The likely range is $357,057 to $468,743. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD last sell?

12240 Roundwood Rd Unit 405, Lutherville Timonium, MD last sold on Mar 25, 2026 for $407,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD?

12240 Roundwood Rd Unit 405, Lutherville Timonium, MD has 2 bathrooms, 1,442 square feet of living space and a 0.03-acre lot.

When was 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD built?

12240 Roundwood Rd Unit 405, Lutherville Timonium, MD was built in 2003, making it 23 years old. It is a condo/apartment home.

What schools serve 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD?

12240 Roundwood Rd Unit 405, Lutherville Timonium, MD is assigned to Mays Chapel Elementary School (elementary), rated A-; Dulaney High School (high), rated B-; Ridgely Middle School (middle), rated A. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD compare to other homes in Lutherville Timonium 21093?

Among the 14,257 homes in Lutherville Timonium 21093, it is worth more than 21% of them ($412,900 against a typical $510,194), its price per square foot is higher than 55% of them ($286 against a typical $280), it is bigger than 23% of them (1,442 ft² against a typical 1,811 ft²), its lot is bigger than 8% of them (1,442 ft² against a typical 0.23 ac) and it is newer than 95% of them (2003 against a typical 1970). Measured against all of Baltimore County, it is worth more than 63% 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 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD?

The 2025 property tax bill for 12240 Roundwood Rd Unit 405, Lutherville Timonium, MD was $4,918. The county assessed it at $310,000.

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