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Single Family ResidenceResidential
$1,172,348$338 / 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 Aug 30, 2026
Last sold for $538,000 on Dec 30, 2013

339 W PROSPECT BAY DR

GRASONVILLE, MD 21638
2.5
Baths
3,472 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.
1.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1993
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

$1.2M
$1.1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$538,000 · Dec 30, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,912 (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.$797,867 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$752,133
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$843,600

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.61
87
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
34
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
80
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
81
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
25
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.18 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.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.Single Family Residence
CountyQUEEN ANNE'S
Lot (acres)The size of the land the home sits on, from county records.1.32
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.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.Garage, Built-in
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront-Not Specified
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 468 ft²Porch · 156 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
Grasonville Elementary SchoolA
Elementary · Grades PK–5 · 3.5 mi
M
Stevensville Middle SchoolB
Middle · Grades 6–8 · 7.6 mi
H
Kent Island High SchoolC
High · Grades 9–12 · 8.3 mi

District: Queen Annes County Public Schools

Neighborhood · ZIP 21638These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.35

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
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.5,374
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.298 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$128,280
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$149,502
Average tempThe average temperature here across a full year.57°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

339 W Prospect Bay 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 91% of homes in Queen Anne's County
  • Costs more per square foot than 77% of homes in Queen Anne's County
  • Bigger than 92% of homes in Queen Anne's County
  • Has a bigger lot than 90% of homes in Grasonville 21638

What homes are worth in Grasonville 21638

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

This home
$220K$1.8M

This home is worth more than 88% of homes in Grasonville 21638.

How it measures up in Grasonville 21638

The dot is this home. The mark in the middle is the typical home in Grasonville 21638.

Estimated value$1,172,348
CheaperTypical $633,800Pricier

Pricier than 88% of homes nearby

Price per ft²$338
CheaperTypical $293Pricier

Pricier than 67% of homes nearby

Living area3,472 ft²
SmallerTypical 2,128 ft²Bigger

Bigger than 91% of homes nearby

Lot size1.32 ac
SmallerTypical 0.34 acBigger

Bigger than 90% of homes nearby

Year built1993
OlderTypical 1992Newer

Newer than 54% of homes nearby

How 339 W Prospect Bay Dr ranks against every home in each area.
MeasureThis homeGrasonville 21638Queen Anne's County
Estimated valuepricier than$1,172,34888% of homes91% of homes
Price per ft²pricier than$33867% of homes77% of homes
Living areabigger than3,472 ft²91% of homes92% of homes
Lot sizebigger than1.32 ac90% of homes77% of homes
Year builtnewer than199354% of homes53% of homes

About 339 W Prospect Bay Dr

How much is 339 W Prospect Bay Dr, Grasonville, MD worth?

The TopHap Estimate for 339 W Prospect Bay Dr, Grasonville, MD is $1,172,348 as of Aug 30, 2026. The likely range is $1,096,392 to $1,248,304. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 339 W Prospect Bay Dr, Grasonville, MD last sell?

339 W Prospect Bay Dr, Grasonville, MD last sold on Dec 30, 2013 for $538,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 339 W Prospect Bay Dr, Grasonville, MD?

339 W Prospect Bay Dr, Grasonville, MD has 2.5 bathrooms, 3,472 square feet of living space and a 1.32-acre lot.

When was 339 W Prospect Bay Dr, Grasonville, MD built?

339 W Prospect Bay Dr, Grasonville, MD was built in 1993, making it 33 years old. The building has 2 stories.

What schools serve 339 W Prospect Bay Dr, Grasonville, MD?

339 W Prospect Bay Dr, Grasonville, MD is assigned to Grasonville Elementary School (elementary), rated A; Stevensville Middle School (middle), rated B; Kent Island High School (high), rated C. All sit in Queen Annes County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 339 W Prospect Bay Dr, Grasonville, MD compare to other homes in Grasonville 21638?

Among the 2,137 homes in Grasonville 21638, it is worth more than 88% of them ($1,172,348 against a typical $633,800), its price per square foot is higher than 67% of them ($338 against a typical $293), it is bigger than 91% of them (3,472 ft² against a typical 2,128 ft²), its lot is bigger than 90% of them (1.32 ac against a typical 0.34 ac) and it is newer than 54% of them (1993 against a typical 1992). Measured against all of Queen Anne's County, it is worth more than 91% 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 339 W Prospect Bay Dr, Grasonville, MD?

The 2025 property tax bill for 339 W Prospect Bay Dr, Grasonville, MD was $6,912. The county assessed it at $797,867.

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