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Rural ResidenceResidential
$979,629$583 / 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 81How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $950,000 on May 22, 2025

9510 APPOLDS RD

ROCKY RIDGE, MD 21778
1
Baths
1,680 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.
127.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$980K
$795K 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.$950,000 · May 22, 2025
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$29,629
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$23,703
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.98%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$950,000
HORIZON FARM CREDIT ACA · recorded May 22, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,210 (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.$185,667 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$176,433
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$194,900

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.63
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
14
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
76
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
88
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
37
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.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Rural Residence
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyFrederick
Lot (acres)The size of the land the home sits on, from county records.127.17
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.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 · 224 ft²Shed · 4,480 ft²Porch · 336 ft²

Transaction History(1)

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.

M
Thurmont Middle SchoolC-
Middle · Grades 6–8 · 3.6 mi
H
Catoctin High SchoolB-
High · Grades 9–12 · 4.0 mi
E
Emmitsburg Elementary SchoolB-
Elementary · Grades KG–5 · 5.3 mi

District: Frederick County Public Schools

Neighborhood · ZIP 21778These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.9%
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.1,439
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.80 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,802
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,057
Average tempThe average temperature here across a full year.53°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%

Ownership

Company ownedWhether the owner is a company or trust rather than a person.No

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

9510 Appolds 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 96% of homes in Frederick County
  • Among the highest price per square foot in Frederick County
  • Among the largest lots in Frederick County
  • Older than 80% of homes in Frederick County

What homes are worth in Rocky Ridge 21778

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

This home
$179K$1.2M

This home is worth more than 95% of homes in Rocky Ridge 21778.

How it measures up in Rocky Ridge 21778

The dot is this home. The mark in the middle is the typical home in Rocky Ridge 21778.

Estimated value$979,629
CheaperTypical $433,527Pricier

Pricier than 95% of homes nearby

Price per ft²$583
CheaperTypical $264Pricier

Pricier than almost all homes nearby

Living area1,680 ft²
SmallerTypical 1,648 ft²Bigger

Bigger than 53% of homes nearby

Lot size127.17 ac
SmallerTypical 3.12 acBigger

Bigger than 97% of homes nearby

Year built1970
OlderTypical 1965Newer

Newer than 55% of homes nearby

How 9510 Appolds Rd ranks against every home in each area.
MeasureThis homeRocky Ridge 21778Frederick County
Estimated valuepricier than$979,62995% of homes96% of homes
Price per ft²pricier than$583almost all homesalmost all homes
Living areabigger than1,680 ft²53% of homes39% of homes
Lot sizebigger than127.17 ac97% of homesalmost all homes
Year builtnewer than197055% of homes20% of homes

About 9510 Appolds Rd

How much is 9510 Appolds Rd, Rocky Ridge, MD worth?

The TopHap Estimate for 9510 Appolds Rd, Rocky Ridge, MD is $979,629 as of Jul 14, 2026. The likely range is $794,891 to $1,164,367. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9510 Appolds Rd, Rocky Ridge, MD last sell?

9510 Appolds Rd, Rocky Ridge, MD last sold on May 22, 2025 for $950,000, according to the county's recorded deed.

How big is 9510 Appolds Rd, Rocky Ridge, MD?

9510 Appolds Rd, Rocky Ridge, MD has 1 bathrooms, 1,680 square feet of living space and a 127.17-acre lot.

When was 9510 Appolds Rd, Rocky Ridge, MD built?

9510 Appolds Rd, Rocky Ridge, MD was built in 1970, making it 56 years old. It is a mobile home home. The building has 1 story.

What schools serve 9510 Appolds Rd, Rocky Ridge, MD?

9510 Appolds Rd, Rocky Ridge, MD is assigned to Thurmont Middle School (middle), rated C-; Catoctin High School (high), rated B-; Emmitsburg Elementary School (elementary), rated B-. All sit in Frederick County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9510 Appolds Rd, Rocky Ridge, MD compare to other homes in Rocky Ridge 21778?

Among the 411 homes in Rocky Ridge 21778, it is worth more than 95% of them ($979,629 against a typical $433,527), its price per square foot is higher than almost all of them ($583 against a typical $264), it is bigger than 53% of them (1,680 ft² against a typical 1,648 ft²), its lot is bigger than 97% of them (127.17 ac against a typical 3.12 ac) and it is newer than 55% of them (1970 against a typical 1965). Measured against all of Frederick County, it is worth more than 96% 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 9510 Appolds Rd, Rocky Ridge, MD?

The 2025 property tax bill for 9510 Appolds Rd, Rocky Ridge, MD was $2,210. The county assessed it at $185,667.

More homes on Appolds Rd

Closest homes

More homes in Rocky Ridge 21778

Assigned schools

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