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Rural ResidenceResidential
$537,698$341 / 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 96How 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 $570,000 on Nov 7, 2019

7720 RIDGE RD

MARRIOTTSVILLE, MD 21104
1
Baths
1,575 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.
34.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$538K
$514K low$561K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$570,000 · Nov 7, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,744 (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.$448,000 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$418,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$477,700

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.57
64
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
13
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.
90
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
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.31 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.Rural Residence
CountyCARROLL
Lot (acres)The size of the land the home sits on, from county records.34.51
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.Metal
HeatingThe type of heating system in the home.Baseboard
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 500 ft²Shed · 1,800 ft²Porch · 325 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
Carrolltowne Elementary SchoolA
Elementary · Grades PK–5 · 2.9 mi
M
Oklahoma Road Middle SchoolA
Middle · Grades 6–8 · 3.3 mi
H
Liberty High SchoolA-
High · Grades 9–12 · 4.6 mi

District: Carroll County Public Schools

Neighborhood · ZIP 21104These 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.99
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
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.6,580
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.368 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$159,012
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$206,489
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

7720 Ridge 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 less than 79% of homes in Marriottsville 21104
  • Costs more per square foot than 86% of homes in Carroll County
  • Smaller than 83% of homes in Marriottsville 21104
  • Among the largest lots in Marriottsville 21104
  • Older than 87% of homes in Marriottsville 21104

What homes are worth in Marriottsville 21104

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

This home
$338K$1.5M

This home is worth more than 21% of homes in Marriottsville 21104.

How it measures up in Marriottsville 21104

The dot is this home. The mark in the middle is the typical home in Marriottsville 21104.

Estimated value$537,698
CheaperTypical $708,919Pricier

Pricier than 21% of homes nearby

Price per ft²$341
CheaperTypical $294Pricier

Pricier than 78% of homes nearby

Living area1,575 ft²
SmallerTypical 2,394 ft²Bigger

Bigger than 17% of homes nearby

Lot size34.51 ac
SmallerTypical 0.59 acBigger

Bigger than almost all homes nearby

Year built1971
OlderTypical 1997Newer

Newer than 13% of homes nearby

How 7720 Ridge Rd ranks against every home in each area.
MeasureThis homeMarriottsville 21104Carroll County
Estimated valuepricier than$537,69821% of homes63% of homes
Price per ft²pricier than$34178% of homes86% of homes
Living areabigger than1,575 ft²17% of homes40% of homes
Lot sizebigger than34.51 acalmost all homesalmost all homes
Year builtnewer than197113% of homes26% of homes

About 7720 Ridge Rd

How much is 7720 Ridge Rd, Marriottsville, MD worth?

The TopHap Estimate for 7720 Ridge Rd, Marriottsville, MD is $537,698 as of Sep 24, 2026. The likely range is $514,146 to $561,250. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 7720 Ridge Rd, Marriottsville, MD last sell?

7720 Ridge Rd, Marriottsville, MD last sold on Nov 7, 2019 for $570,000, according to the county's recorded deed.

How big is 7720 Ridge Rd, Marriottsville, MD?

7720 Ridge Rd, Marriottsville, MD has 1 bathrooms, 1,575 square feet of living space and a 34.51-acre lot.

When was 7720 Ridge Rd, Marriottsville, MD built?

7720 Ridge Rd, Marriottsville, MD was built in 1971, making it 55 years old. The building has 1 story.

What schools serve 7720 Ridge Rd, Marriottsville, MD?

7720 Ridge Rd, Marriottsville, MD is assigned to Carrolltowne Elementary School (elementary), rated A; Oklahoma Road Middle School (middle), rated A; Liberty High School (high), rated A-. All sit in Carroll County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 7720 Ridge Rd, Marriottsville, MD compare to other homes in Marriottsville 21104?

Among the 2,302 homes in Marriottsville 21104, it is worth more than 21% of them ($537,698 against a typical $708,919), its price per square foot is higher than 78% of them ($341 against a typical $294), it is bigger than 17% of them (1,575 ft² against a typical 2,394 ft²), its lot is bigger than almost all of them (34.51 ac against a typical 0.59 ac) and it is newer than 13% of them (1971 against a typical 1997). Measured against all of Carroll County, it is worth more than 63% 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 7720 Ridge Rd, Marriottsville, MD?

The 2025 property tax bill for 7720 Ridge Rd, Marriottsville, MD was $4,744. The county assessed it at $448,000.

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