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Single Family ResidenceResidential
$1,294,926$128 / 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 93How 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 $90,000 on Dec 23, 1999

17705 OLNEY LN

ROCKVILLE, MD 20853
4.5
Baths
10,095 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.
2.19 ac
Lot SizeThe size of the land the home sits on, from county records.
2018
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.3M
$1.2M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$90,000 · Dec 23, 1999
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.$1,294,926
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$1,035,941

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,349 (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.$1,608,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$269,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,339,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,432,033
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,608,800

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.9
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
29
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
CountyMONTGOMERY
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.Patio · 400 ft²Porch · 396 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
Sequoyah Elementary SchoolB
Elementary · Grades KG–5 · 1.3 mi
H
Col. Zadok Magruder High SchoolC
High · Grades 9–12 · 1.6 mi
M
Redland Middle SchoolC-
Middle · Grades 6–8 · 1.9 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20853These 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.60
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
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.30,497
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,373 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,074
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,691
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
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

17705 Olney Ln 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.

  • Among the most valuable homes in Rockville 20853
  • Among the lowest price per square foot in Rockville 20853
  • Among the largest homes in Rockville 20853
  • Among the largest lots in Rockville 20853
  • Among the newest homes in Rockville 20853

What homes are worth in Rockville 20853

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

This home
$231K$1.2M

This home is worth more than almost all homes in Rockville 20853.

How it measures up in Rockville 20853

The dot is this home. The mark in the middle is the typical home in Rockville 20853.

Estimated value$1,294,926
CheaperTypical $641,446Pricier

Pricier than almost all homes nearby

Price per ft²$128
CheaperTypical $309Pricier

Cheaper than almost all homes nearby

Living area10,095 ft²
SmallerTypical 2,034 ft²Bigger

Bigger than almost all homes nearby

Lot size2.19 ac
SmallerTypical 0.23 acBigger

Bigger than almost all homes nearby

Year built2018
OlderTypical 1965Newer

Newer than almost all homes nearby

How 17705 Olney Ln ranks against every home in each area.
MeasureThis homeRockville 20853Montgomery County
Estimated valuepricier than$1,294,926almost all homes88% of homes
Price per ft²pricier than$128almost no homesalmost no homes
Living areabigger than10,095 ft²almost all homesalmost all homes
Lot sizebigger than2.19 acalmost all homes98% of homes
Year builtnewer than2018almost all homes97% of homes

About 17705 Olney Ln

How much is 17705 Olney Ln, Rockville, MD worth?

The TopHap Estimate for 17705 Olney Ln, Rockville, MD is $1,294,926 as of Jul 14, 2026. The likely range is $1,202,098 to $1,387,754. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17705 Olney Ln, Rockville, MD last sell?

17705 Olney Ln, Rockville, MD last sold on Dec 23, 1999 for $90,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 17705 Olney Ln, Rockville, MD?

17705 Olney Ln, Rockville, MD has 4.5 bathrooms and 10,095 square feet of living space.

When was 17705 Olney Ln, Rockville, MD built?

17705 Olney Ln, Rockville, MD was built in 2018, making it 8 years old. The building has 2 stories.

What schools serve 17705 Olney Ln, Rockville, MD?

17705 Olney Ln, Rockville, MD is assigned to Sequoyah Elementary School (elementary), rated B; Col. Zadok Magruder High School (high), rated C; Redland 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 17705 Olney Ln, Rockville, MD compare to other homes in Rockville 20853?

Among the 9,292 homes in Rockville 20853, it is worth more than almost all of them ($1,294,926 against a typical $641,446), its price per square foot is higher than almost none of them ($128 against a typical $309), it is bigger than almost all of them (10,095 ft² against a typical 2,034 ft²), its lot is bigger than almost all of them (2.19 ac against a typical 0.23 ac) and it is newer than almost all of them (2018 against a typical 1965). Measured against all of Montgomery County, it is worth more than 88% 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 17705 Olney Ln, Rockville, MD?

The 2025 property tax bill for 17705 Olney Ln, Rockville, MD was $19,349. The county assessed it at $1,608,800.

More homes on Olney Ln

Closest homes

More homes in Rockville 20853

Assigned schools

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