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Single Family ResidenceResidential
$582,597$178 / 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 88How 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 $19,000 on Feb 28, 1990

16535 THREE NOTCH RD

RIDGE, MD 20680
2
Baths
3,276 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.
1.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
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

$583K
$512K low$653K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$19,000 · Feb 28, 1990

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,733 (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.$417,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$121,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$296,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$391,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$417,500

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.39
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.
84
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
82
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
6
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
CountyST. MARY'S
Lot (acres)The size of the land the home sits on, from county records.1.30
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 288 ft²Porch · 408 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
Ridge Elementary SchoolC
Elementary · Grades PK–5 · 0.8 mi
M
Spring Ridge Middle SchoolC
Middle · Grades 6–8 · 6.5 mi
H
Great Mills High SchoolD+
High · Grades 9–12 · 10.8 mi

District: St. Marys County Public Schools

Neighborhood · ZIP 20680These 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.154
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.79%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.8%
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.653
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.67 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,299
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$120,317
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

16535 Three Notch 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 80% of homes in St. Mary's County
  • Costs less per square foot than 89% of homes in Ridge 20680
  • Bigger than 93% of homes in Ridge 20680
  • Has a bigger lot than 66% of homes in St. Mary's County
  • Newer than 71% of homes in Ridge 20680

What homes are worth in Ridge 20680

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

This home
$142K$1M

This home is worth more than 73% of homes in Ridge 20680.

How it measures up in Ridge 20680

The dot is this home. The mark in the middle is the typical home in Ridge 20680.

Estimated value$582,597
CheaperTypical $449,938Pricier

Pricier than 73% of homes nearby

Price per ft²$178
CheaperTypical $254Pricier

Pricier than 11% of homes nearby

Living area3,276 ft²
SmallerTypical 1,700 ft²Bigger

Bigger than 93% of homes nearby

Lot size1.3 ac
SmallerTypical 1.32 acBigger

Bigger than 50% of homes nearby

Year built1990
OlderTypical 1971Newer

Newer than 71% of homes nearby

How 16535 Three Notch Rd ranks against every home in each area.
MeasureThis homeRidge 20680St. Mary's County
Estimated valuepricier than$582,59773% of homes80% of homes
Price per ft²pricier than$17811% of homes11% of homes
Living areabigger than3,276 ft²93% of homes92% of homes
Lot sizebigger than1.3 ac50% of homes66% of homes
Year builtnewer than199071% of homes48% of homes

About 16535 Three Notch Rd

How much is 16535 Three Notch Rd, Ridge, MD worth?

The TopHap Estimate for 16535 Three Notch Rd, Ridge, MD is $582,597 as of Aug 30, 2026. The likely range is $511,717 to $653,477. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 16535 Three Notch Rd, Ridge, MD last sell?

16535 Three Notch Rd, Ridge, MD last sold on Feb 28, 1990 for $19,000, according to the county's recorded deed.

How big is 16535 Three Notch Rd, Ridge, MD?

16535 Three Notch Rd, Ridge, MD has 2 bathrooms, 3,276 square feet of living space and a 1.30-acre lot.

When was 16535 Three Notch Rd, Ridge, MD built?

16535 Three Notch Rd, Ridge, MD was built in 1990, making it 36 years old. The building has 2 stories.

What schools serve 16535 Three Notch Rd, Ridge, MD?

16535 Three Notch Rd, Ridge, MD is assigned to Ridge Elementary School (elementary), rated C; Spring Ridge Middle School (middle), rated C; Great Mills High School (high), rated D+. All sit in St. Marys County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 16535 Three Notch Rd, Ridge, MD compare to other homes in Ridge 20680?

Among the 439 homes in Ridge 20680, it is worth more than 73% of them ($582,597 against a typical $449,938), its price per square foot is higher than 11% of them ($178 against a typical $254), it is bigger than 93% of them (3,276 ft² against a typical 1,700 ft²), its lot is bigger than 50% of them (1.3 ac against a typical 1.32 ac) and it is newer than 71% of them (1990 against a typical 1971). Measured against all of St. Mary's County, it is worth more than 80% 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 16535 Three Notch Rd, Ridge, MD?

The 2025 property tax bill for 16535 Three Notch Rd, Ridge, MD was $2,733. The county assessed it at $417,500.

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