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Rural ResidenceResidential
$942,119$349 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $576,000 on Sep 21, 2011

721 WELLER DR

MOUNT AIRY, MD 21771
2.5
Baths
2,697 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.
6.34 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$942K
$884K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$576,000 · Sep 21, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,269 (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.$702,433 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$639,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$828,700

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.66
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
20
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
76
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Rural Residence
CountyHOWARD
Lot (acres)The size of the land the home sits on, from county records.6.34
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.Deck · 408 ft²Porch · 81 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.

E
Lisbon Elementary SchoolA
Elementary · Grades KG–5 · 1.9 mi
M
Glenwood Middle SchoolA+
Middle · Grades 6–8 · 4.9 mi
H
Glenelg High SchoolA-
High · Grades 9–12 · 6.8 mi

District: Howard County Public Schools

Neighborhood · ZIP 21771These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
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.32,505
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.382 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$151,406
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$162,296
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.44 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

721 Weller 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 93% of homes in Mount Airy 21771
  • Costs more per square foot than 83% of homes in Mount Airy 21771
  • Bigger than 74% of homes in Howard County
  • Has a bigger lot than 96% of homes in Howard County
  • Newer than 79% of homes in Mount Airy 21771

What homes are worth in Mount Airy 21771

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

This home
$325K$1.1M

This home is worth more than 93% of homes in Mount Airy 21771.

How it measures up in Mount Airy 21771

The dot is this home. The mark in the middle is the typical home in Mount Airy 21771.

Estimated value$942,119
CheaperTypical $609,833Pricier

Pricier than 93% of homes nearby

Price per ft²$349
CheaperTypical $282Pricier

Pricier than 83% of homes nearby

Living area2,697 ft²
SmallerTypical 2,191 ft²Bigger

Bigger than 69% of homes nearby

Lot size6.34 ac
SmallerTypical 0.95 acBigger

Bigger than 94% of homes nearby

Year built2000
OlderTypical 1988Newer

Newer than 79% of homes nearby

How 721 Weller Dr ranks against every home in each area.
MeasureThis homeMount Airy 21771Howard County
Estimated valuepricier than$942,11993% of homes83% of homes
Price per ft²pricier than$34983% of homes77% of homes
Living areabigger than2,697 ft²69% of homes74% of homes
Lot sizebigger than6.34 ac94% of homes96% of homes
Year builtnewer than200079% of homes74% of homes

About 721 Weller Dr

How much is 721 Weller Dr, Mount Airy, MD worth?

The TopHap Estimate for 721 Weller Dr, Mount Airy, MD is $942,119 as of Oct 21, 2026. The likely range is $883,583 to $1,000,655. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 721 Weller Dr, Mount Airy, MD last sell?

721 Weller Dr, Mount Airy, MD last sold on Sep 21, 2011 for $576,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 721 Weller Dr, Mount Airy, MD?

721 Weller Dr, Mount Airy, MD has 2.5 bathrooms, 2,697 square feet of living space and a 6.34-acre lot.

When was 721 Weller Dr, Mount Airy, MD built?

721 Weller Dr, Mount Airy, MD was built in 2000, making it 26 years old. The building has 1 story.

What schools serve 721 Weller Dr, Mount Airy, MD?

721 Weller Dr, Mount Airy, MD is assigned to Lisbon Elementary School (elementary), rated A; Glenwood Middle School (middle), rated A+; Glenelg High School (high), rated A-. All sit in Howard County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 721 Weller Dr, Mount Airy, MD compare to other homes in Mount Airy 21771?

Among the 10,755 homes in Mount Airy 21771, it is worth more than 93% of them ($942,119 against a typical $609,833), its price per square foot is higher than 83% of them ($349 against a typical $282), it is bigger than 69% of them (2,697 ft² against a typical 2,191 ft²), its lot is bigger than 94% of them (6.34 ac against a typical 0.95 ac) and it is newer than 79% of them (2000 against a typical 1988). Measured against all of Howard County, it is worth more than 83% 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 721 Weller Dr, Mount Airy, MD?

The 2026 property tax bill for 721 Weller Dr, Mount Airy, MD was $9,269. The county assessed it at $702,433.

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