Skip to content
Skip to content
TopHapOpen in map
Rural ResidenceResidential
$863,204$262 / 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 83How 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

11031 FACTORY RD

GLEN ARM, MD 21057
1
Baths
3,299 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.
40.02 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$863K
$720K low$1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,514 (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.$355,433 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$333,067
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$377,800

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.21 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural 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.40.02
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.Radiant
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.Shed · 1,750 ft²Porch · 176 ft²

Transaction History(1)

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.

M
Pine Grove Middle SchoolD+
Middle · Grades 6–8 · 2.3 mi
H
Loch Raven High SchoolC-
High · Grades 9–12 · 4.0 mi
E
Carroll Manor Elementary SchoolA
Elementary · Grades KG–5 · 5.1 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21057These 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.74
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.47

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
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.4,918
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.295 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$156,114
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$167,405
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%

Owner Tools

Do you own this home?
Claim this home

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

11031 Factory Rd 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 Baltimore County
  • Costs more per square foot than 69% of homes in Baltimore County
  • Bigger than 94% of homes in Baltimore County
  • Among the largest lots in Baltimore County
  • Among the oldest homes in Baltimore County

What homes are worth in Glen Arm 21057

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

This home
$303K$1.1M

This home is worth more than 89% of homes in Glen Arm 21057.

How it measures up in Glen Arm 21057

The dot is this home. The mark in the middle is the typical home in Glen Arm 21057.

Estimated value$863,204
CheaperTypical $637,249Pricier

Pricier than 89% of homes nearby

Price per ft²$262
CheaperTypical $260Pricier

Pricier than 51% of homes nearby

Living area3,299 ft²
SmallerTypical 2,380 ft²Bigger

Bigger than 81% of homes nearby

Lot size40.02 ac
SmallerTypical 1.51 acBigger

Bigger than almost all homes nearby

Year built1900
OlderTypical 1969Newer

Newer than 6% of homes nearby

How 11031 Factory Rd ranks against every home in each area.
MeasureThis homeGlen Arm 21057Baltimore County
Estimated valuepricier than$863,20489% of homes95% of homes
Price per ft²pricier than$26251% of homes69% of homes
Living areabigger than3,299 ft²81% of homes94% of homes
Lot sizebigger than40.02 acalmost all homesalmost all homes
Year builtnewer than19006% of homesalmost no homes

About 11031 Factory Rd

How much is 11031 Factory Rd, Glen Arm, MD worth?

The TopHap Estimate for 11031 Factory Rd, Glen Arm, MD is $863,204 as of Sep 24, 2026. The likely range is $719,597 to $1,006,811. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 11031 Factory Rd, Glen Arm, MD?

11031 Factory Rd, Glen Arm, MD has 1 bathrooms, 3,299 square feet of living space and a 40.02-acre lot.

When was 11031 Factory Rd, Glen Arm, MD built?

11031 Factory Rd, Glen Arm, MD was built in 1900, making it 126 years old. It is a conventional home. The building has 2 stories.

What schools serve 11031 Factory Rd, Glen Arm, MD?

11031 Factory Rd, Glen Arm, MD is assigned to Pine Grove Middle School (middle), rated D+; Loch Raven High School (high), rated C-; Carroll Manor Elementary School (elementary), rated A. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11031 Factory Rd, Glen Arm, MD compare to other homes in Glen Arm 21057?

Among the 1,461 homes in Glen Arm 21057, it is worth more than 89% of them ($863,204 against a typical $637,249), its price per square foot is higher than 51% of them ($262 against a typical $260), it is bigger than 81% of them (3,299 ft² against a typical 2,380 ft²), its lot is bigger than almost all of them (40.02 ac against a typical 1.51 ac) and it is newer than 6% of them (1900 against a typical 1969). Measured against all of Baltimore County, it is worth more than 95% 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 11031 Factory Rd, Glen Arm, MD?

The 2025 property tax bill for 11031 Factory Rd, Glen Arm, MD was $3,514. The county assessed it at $355,433.

More homes on Factory Rd

Closest homes

More homes in Glen Arm 21057

Assigned schools

Explore the area

See this home in context

Open 11031 Factory Rd on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map