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Single Family ResidenceResidential
$500,800$241 / 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 $293,500 on Sep 13, 2010

4510 MATTAPANY RD

SAINT LEONARD, MD 20685
2.5
Baths
2,076 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.
0.53 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
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

$501K
$469K low$533K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$293,500 · Sep 13, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,246 (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.$402,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$110,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$292,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$378,467
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$402,800

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.47
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
77
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
83
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
52
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Single Family Residence
CountyCALVERT
Lot (acres)The size of the land the home sits on, from county records.0.54
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
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.Mixed
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 · 196 ft²Porch · 65 ft²

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.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
St. Leonard Elementary SchoolB+
Elementary · Grades PK–5 · 1.2 mi
H
Calvert High SchoolB-
High · Grades 9–12 · 6.5 mi
M
Calvert Middle SchoolB+
Middle · Grades 6–8 · 6.9 mi

District: Calvert County Public Schools

Neighborhood · ZIP 20685These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.31

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
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.0.9%
PopulationHow many people live in this area.4,918
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.170 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$143,796
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,144
Average tempThe average temperature here across a full year.57°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%

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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

4510 Mattapany 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.

  • Costs less per square foot than 75% of homes in Calvert County
  • Newer than 89% of homes in Saint Leonard 20685

What homes are worth in Saint Leonard 20685

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

This home
$229K$1M

This home is worth more than 54% of homes in Saint Leonard 20685.

How it measures up in Saint Leonard 20685

The dot is this home. The mark in the middle is the typical home in Saint Leonard 20685.

Estimated value$500,800
CheaperTypical $482,947Pricier

Pricier than 54% of homes nearby

Price per ft²$241
CheaperTypical $275Pricier

Pricier than 28% of homes nearby

Living area2,076 ft²
SmallerTypical 1,832 ft²Bigger

Bigger than 61% of homes nearby

Lot size0.53 ac
SmallerTypical 0.94 acBigger

Bigger than 37% of homes nearby

Year built2002
OlderTypical 1989Newer

Newer than 89% of homes nearby

How 4510 Mattapany Rd ranks against every home in each area.
MeasureThis homeSaint Leonard 20685Calvert County
Estimated valuepricier than$500,80054% of homes54% of homes
Price per ft²pricier than$24128% of homes25% of homes
Living areabigger than2,076 ft²61% of homes63% of homes
Lot sizebigger than0.53 ac37% of homes43% of homes
Year builtnewer than200289% of homes81% of homes

About 4510 Mattapany Rd

How much is 4510 Mattapany Rd, Saint Leonard, MD worth?

The TopHap Estimate for 4510 Mattapany Rd, Saint Leonard, MD is $500,800 as of Oct 21, 2026. The likely range is $468,524 to $533,076. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4510 Mattapany Rd, Saint Leonard, MD last sell?

4510 Mattapany Rd, Saint Leonard, MD last sold on Sep 13, 2010 for $293,500, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4510 Mattapany Rd, Saint Leonard, MD?

4510 Mattapany Rd, Saint Leonard, MD has 2.5 bathrooms, 2,076 square feet of living space and a 0.54-acre lot.

When was 4510 Mattapany Rd, Saint Leonard, MD built?

4510 Mattapany Rd, Saint Leonard, MD was built in 2002, making it 24 years old. The building has 2 stories.

What schools serve 4510 Mattapany Rd, Saint Leonard, MD?

4510 Mattapany Rd, Saint Leonard, MD is assigned to St. Leonard Elementary School (elementary), rated B+; Calvert High School (high), rated B-; Calvert Middle School (middle), rated B+. All sit in Calvert County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4510 Mattapany Rd, Saint Leonard, MD compare to other homes in Saint Leonard 20685?

Among the 2,632 homes in Saint Leonard 20685, it is worth more than 54% of them ($500,800 against a typical $482,947), its price per square foot is higher than 28% of them ($241 against a typical $275), it is bigger than 61% of them (2,076 ft² against a typical 1,832 ft²), its lot is bigger than 37% of them (0.53 ac against a typical 0.94 ac) and it is newer than 89% of them (2002 against a typical 1989). Measured against all of Calvert County, it is worth more than 54% 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 4510 Mattapany Rd, Saint Leonard, MD?

The 2025 property tax bill for 4510 Mattapany Rd, Saint Leonard, MD was $4,246. The county assessed it at $402,800.

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