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Single Family ResidenceResidential
$504,026$459 / 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 85How 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 $500,000 on Sep 22, 2025

1237 ALTA DR

SUNDERLAND, MD 20689
2
Baths
1,098 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.
1.62 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$504K
$426K low$582K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$500,000 · Sep 22, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,598 (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.$331,600 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$312,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$369,000

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.40
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
27
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
78
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
80
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
9
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.1 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
StyleThe architectural style of the home, such as ranch or colonial.Split Foyer
CountyCALVERT
Lot (acres)The size of the land the home sits on, from county records.1.62
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.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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Sunderland Elementary SchoolB-
Elementary · Grades PK–5 · 1.6 mi
H
Huntingtown High SchoolA-
High · Grades 9–12 · 3.3 mi
M
Windy Hill Middle SchoolB
Middle · Grades 6–8 · 3.8 mi

District: Calvert County Public Schools

Neighborhood · ZIP 20689These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.29

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.23%
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.0.8%
PopulationHow many people live in this area.3,066
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.391 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,792
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,814
Average tempThe average temperature here across a full year.56°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

1237 Alta 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.

  • Among the highest price per square foot in Sunderland 20689
  • Smaller than 87% of homes in Sunderland 20689
  • Has a bigger lot than 75% of homes in Calvert County
  • Older than 73% of homes in Sunderland 20689

What homes are worth in Sunderland 20689

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

This home
$231K$1M

This home is worth more than 37% of homes in Sunderland 20689.

How it measures up in Sunderland 20689

The dot is this home. The mark in the middle is the typical home in Sunderland 20689.

Estimated value$504,026
CheaperTypical $572,638Pricier

Pricier than 37% of homes nearby

Price per ft²$459
CheaperTypical $282Pricier

Pricier than almost all homes nearby

Living area1,098 ft²
SmallerTypical 2,007 ft²Bigger

Bigger than 13% of homes nearby

Lot size1.62 ac
SmallerTypical 2.15 acBigger

Bigger than 40% of homes nearby

Year built1978
OlderTypical 1988Newer

Newer than 27% of homes nearby

How 1237 Alta Dr ranks against every home in each area.
MeasureThis homeSunderland 20689Calvert County
Estimated valuepricier than$504,02637% of homes54% of homes
Price per ft²pricier than$459almost all homes97% of homes
Living areabigger than1,098 ft²13% of homes16% of homes
Lot sizebigger than1.62 ac40% of homes75% of homes
Year builtnewer than197827% of homes27% of homes

About 1237 Alta Dr

How much is 1237 Alta Dr, Sunderland, MD worth?

The TopHap Estimate for 1237 Alta Dr, Sunderland, MD is $504,026 as of Aug 30, 2026. The likely range is $425,972 to $582,080. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1237 Alta Dr, Sunderland, MD last sell?

1237 Alta Dr, Sunderland, MD last sold on Sep 22, 2025 for $500,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 1237 Alta Dr, Sunderland, MD?

1237 Alta Dr, Sunderland, MD has 2 bathrooms, 1,098 square feet of living space and a 1.62-acre lot.

When was 1237 Alta Dr, Sunderland, MD built?

1237 Alta Dr, Sunderland, MD was built in 1978, making it 48 years old. It is a split foyer home. The building has 1 story.

What schools serve 1237 Alta Dr, Sunderland, MD?

1237 Alta Dr, Sunderland, MD is assigned to Sunderland Elementary School (elementary), rated B-; Huntingtown High School (high), rated A-; Windy Hill 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 1237 Alta Dr, Sunderland, MD compare to other homes in Sunderland 20689?

Among the 676 homes in Sunderland 20689, it is worth more than 37% of them ($504,026 against a typical $572,638), its price per square foot is higher than almost all of them ($459 against a typical $282), it is bigger than 13% of them (1,098 ft² against a typical 2,007 ft²), its lot is bigger than 40% of them (1.62 ac against a typical 2.15 ac) and it is newer than 27% of them (1978 against a typical 1988). 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 1237 Alta Dr, Sunderland, MD?

The 2025 property tax bill for 1237 Alta Dr, Sunderland, MD was $3,598. The county assessed it at $331,600.

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