Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$611,140$335 / 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 74How 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

13820 CLOPPER RD

BOYDS, MD 20841
1
Baths
1,824 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.
1.71 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$611K
$452K low$771K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,823 (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.$420,467 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$407,033
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$433,900

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Bi-Level
CountyMONTGOMERY
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.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.Porch · 240 ft²

Transaction History(3)

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
Kingsview Middle SchoolA-
Middle · Grades 6–8 · 0.2 mi
E
Dr. Ronald E. McNair Elementary SchoolA-
Elementary · Grades PK–5 · 0.4 mi
H
Northwest High SchoolB
High · Grades 9–12 · 1.0 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20841These 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.34
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
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.14,427
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.464 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$163,918
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$191,175
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Owner Tools

Do you own this home?
Claim this home

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

13820 Clopper 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 78% of homes in Boyds 20841
  • Costs more per square foot than 93% of homes in Boyds 20841
  • Smaller than 86% of homes in Boyds 20841
  • Has a bigger lot than 96% of homes in Montgomery County
  • Among the oldest homes in Montgomery County

What homes are worth in Boyds 20841

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

This home
$230K$1.2M

This home is worth more than 22% of homes in Boyds 20841.

How it measures up in Boyds 20841

The dot is this home. The mark in the middle is the typical home in Boyds 20841.

Estimated value$611,140
CheaperTypical $854,644Pricier

Pricier than 22% of homes nearby

Price per ft²$335
CheaperTypical $247Pricier

Pricier than 93% of homes nearby

Living area1,824 ft²
SmallerTypical 3,376 ft²Bigger

Bigger than 14% of homes nearby

Lot size1.71 ac
SmallerTypical 0.21 acBigger

Bigger than 91% of homes nearby

Year built1900
OlderTypical 2002Newer

Newer than 2% of homes nearby

How 13820 Clopper Rd ranks against every home in each area.
MeasureThis homeBoyds 20841Montgomery County
Estimated valuepricier than$611,14022% of homes47% of homes
Price per ft²pricier than$33593% of homes63% of homes
Living areabigger than1,824 ft²14% of homes43% of homes
Lot sizebigger than1.71 ac91% of homes96% of homes
Year builtnewer than19002% of homesalmost no homes

About 13820 Clopper Rd

How much is 13820 Clopper Rd, Boyds, MD worth?

The TopHap Estimate for 13820 Clopper Rd, Boyds, MD is $611,140 as of Sep 24, 2026. The likely range is $451,681 to $770,599. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 13820 Clopper Rd, Boyds, MD last sell?

13820 Clopper Rd, Boyds, MD last sold on May 5, 2008, according to the county's recorded deed.

How big is 13820 Clopper Rd, Boyds, MD?

13820 Clopper Rd, Boyds, MD has 1 bathrooms and 1,824 square feet of living space.

When was 13820 Clopper Rd, Boyds, MD built?

13820 Clopper Rd, Boyds, MD was built in 1900, making it 126 years old. It is a bi-level home. The building has 2 stories.

What schools serve 13820 Clopper Rd, Boyds, MD?

13820 Clopper Rd, Boyds, MD is assigned to Kingsview Middle School (middle), rated A-; Dr. Ronald E. McNair Elementary School (elementary), rated A-; Northwest High School (high), rated B. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 13820 Clopper Rd, Boyds, MD compare to other homes in Boyds 20841?

Among the 3,098 homes in Boyds 20841, it is worth more than 22% of them ($611,140 against a typical $854,644), its price per square foot is higher than 93% of them ($335 against a typical $247), it is bigger than 14% of them (1,824 ft² against a typical 3,376 ft²), its lot is bigger than 91% of them (1.71 ac against a typical 0.21 ac) and it is newer than 2% of them (1900 against a typical 2002). Measured against all of Montgomery County, it is worth more than 47% 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 13820 Clopper Rd, Boyds, MD?

The 2025 property tax bill for 13820 Clopper Rd, Boyds, MD was $4,823. The county assessed it at $420,467.

More homes on Clopper Rd

Closest homes

More homes in Boyds 20841

Assigned schools

Explore the area

See this home in context

Open 13820 Clopper Rd on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map