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Single Family ResidenceResidential
$668,320$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 94How 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 $380,000 on Jan 25, 2018

9900 MASON RD

BERLIN, MD 21811
3
Baths
2,250 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.
3.56 ac
Lot SizeThe size of the land the home sits on, from county records.
2012
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$668K
$629K low$708K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$380,000 · Jan 25, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,677 (2023)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$459,000 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$434,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$483,800

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.60 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.Single Family Residence
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.3.56
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
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.Patio · 420 ft²Porch · 200 ft²

Transaction History(7)

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
Buckingham Elementary SchoolA
Elementary · Grades PK–4 · 2.8 mi
M
Stephen Decatur Middle SchoolA+
Middle · Grades 7–8 · 4.4 mi
H
Stephen Decatur High SchoolB+
High · Grades 9–12 · 4.7 mi

District: Worcester County Public Schools

Neighborhood · ZIP 21811These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.25

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.70%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
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.24,607
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.200 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$85,659
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,978
Average tempThe average temperature here across a full year.56°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

9900 Mason 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 82% of homes in Berlin 21811
  • Costs more per square foot than 72% of homes in Berlin 21811
  • Bigger than 85% of homes in Worcester County
  • Has a bigger lot than 95% of homes in Berlin 21811
  • Newer than 93% of homes in Worcester County

What homes are worth in Berlin 21811

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

This home
$202K$1.3M

This home is worth more than 82% of homes in Berlin 21811.

How it measures up in Berlin 21811

The dot is this home. The mark in the middle is the typical home in Berlin 21811.

Estimated value$668,320
CheaperTypical $444,964Pricier

Pricier than 82% of homes nearby

Price per ft²$297
CheaperTypical $258Pricier

Pricier than 72% of homes nearby

Living area2,250 ft²
SmallerTypical 1,696 ft²Bigger

Bigger than 72% of homes nearby

Lot size3.56 ac
SmallerTypical 0.23 acBigger

Bigger than 95% of homes nearby

Year built2012
OlderTypical 1994Newer

Newer than 89% of homes nearby

How 9900 Mason Rd ranks against every home in each area.
MeasureThis homeBerlin 21811Worcester County
Estimated valuepricier than$668,32082% of homes81% of homes
Price per ft²pricier than$29772% of homes36% of homes
Living areabigger than2,250 ft²72% of homes85% of homes
Lot sizebigger than3.56 ac95% of homes94% of homes
Year builtnewer than201289% of homes93% of homes

About 9900 Mason Rd

How much is 9900 Mason Rd, Berlin, MD worth?

The TopHap Estimate for 9900 Mason Rd, Berlin, MD is $668,320 as of Sep 24, 2026. The likely range is $628,601 to $708,039. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9900 Mason Rd, Berlin, MD last sell?

9900 Mason Rd, Berlin, MD last sold on Jan 25, 2018 for $380,000, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 9900 Mason Rd, Berlin, MD?

9900 Mason Rd, Berlin, MD has 3 bathrooms, 2,250 square feet of living space and a 3.56-acre lot.

When was 9900 Mason Rd, Berlin, MD built?

9900 Mason Rd, Berlin, MD was built in 2012, making it 14 years old. The building has 1 story.

What schools serve 9900 Mason Rd, Berlin, MD?

9900 Mason Rd, Berlin, MD is assigned to Buckingham Elementary School (elementary), rated A; Stephen Decatur Middle School (middle), rated A+; Stephen Decatur High School (high), rated B+. All sit in Worcester County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9900 Mason Rd, Berlin, MD compare to other homes in Berlin 21811?

Among the 15,376 homes in Berlin 21811, it is worth more than 82% of them ($668,320 against a typical $444,964), its price per square foot is higher than 72% of them ($297 against a typical $258), it is bigger than 72% of them (2,250 ft² against a typical 1,696 ft²), its lot is bigger than 95% of them (3.56 ac against a typical 0.23 ac) and it is newer than 89% of them (2012 against a typical 1994). Measured against all of Worcester County, it is worth more than 81% 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 9900 Mason Rd, Berlin, MD?

The 2023 property tax bill for 9900 Mason Rd, Berlin, MD was $3,677. The county assessed it at $459,000.

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