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Single Family ResidenceResidential
$248,922$361 / 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 92How 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

21701 SLIDELL RD

BOYDS, MD 20841
1
Baths
689 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.
3.06 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$249K
$228K low$270K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,761 (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.$339,967 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$316,033
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$363,900

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.Townhouse
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
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.Shed · 320 ft²Porch · 136 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.

E
William B. Gibbs Jr. Elementary SchoolB-
Elementary · Grades PK–5 · 3.6 mi
H
Seneca Valley High SchoolC
High · Grades 9–12 · 4.3 mi
M
Neelsville Middle SchoolC
Middle · Grades 6–8 · 4.8 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%

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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

21701 Slidell 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 97% of homes in Boyds 20841
  • Costs more per square foot than 96% of homes in Boyds 20841
  • Among the smallest homes in Boyds 20841
  • Among the largest lots in Montgomery County
  • Older than 96% of homes in Boyds 20841

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
$234K$1.2M

This home is worth more than 3% 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$248,922
CheaperTypical $856,564Pricier

Pricier than 3% of homes nearby

Price per ft²$361
CheaperTypical $247Pricier

Pricier than 96% of homes nearby

Living area689 ft²
SmallerTypical 3,378 ft²Bigger

Smaller than almost all homes nearby

Lot size3.06 ac
SmallerTypical 0.21 acBigger

Bigger than 95% of homes nearby

Year built1957
OlderTypical 2002Newer

Newer than 4% of homes nearby

How 21701 Slidell Rd ranks against every home in each area.
MeasureThis homeBoydsBoyds 20841Montgomery County
Estimated valuepricier than$248,9224% of homes3% of homes6% of homes
Price per ft²pricier than$36188% of homes96% of homes72% of homes
Living areabigger than689 ft²almost no homesalmost no homesalmost no homes
Lot sizebigger than3.06 ac82% of homes95% of homesalmost all homes
Year builtnewer than195716% of homes4% of homes21% of homes

About 21701 Slidell Rd

How much is 21701 Slidell Rd, Boyds, MD worth?

The TopHap Estimate for 21701 Slidell Rd, Boyds, MD is $248,922 as of Sep 24, 2026. The likely range is $228,168 to $269,676. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21701 Slidell Rd, Boyds, MD last sell?

21701 Slidell Rd, Boyds, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21701 Slidell Rd, Boyds, MD?

21701 Slidell Rd, Boyds, MD has 1 bathrooms and 689 square feet of living space.

When was 21701 Slidell Rd, Boyds, MD built?

21701 Slidell Rd, Boyds, MD was built in 1957, making it 69 years old. It is a townhouse home. The building has 1 story.

What schools serve 21701 Slidell Rd, Boyds, MD?

21701 Slidell Rd, Boyds, MD is assigned to William B. Gibbs Jr. Elementary School (elementary), rated B-; Seneca Valley High School (high), rated C; Neelsville Middle School (middle), rated C. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21701 Slidell Rd, Boyds, MD compare to other homes in Boyds 20841?

Among the 3,098 homes in Boyds 20841, it is worth more than 3% of them ($248,922 against a typical $856,564), its price per square foot is higher than 96% of them ($361 against a typical $247), it is bigger than almost none of them (689 ft² against a typical 3,378 ft²), its lot is bigger than 95% of them (3.06 ac against a typical 0.21 ac) and it is newer than 4% of them (1957 against a typical 2002). Measured against all of Montgomery County, it is worth more than 6% 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 21701 Slidell Rd, Boyds, MD?

The 2025 property tax bill for 21701 Slidell Rd, Boyds, MD was $3,761. The county assessed it at $339,967.

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