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Single Family ResidenceResidential
$377,932$259 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

21 MARY DR

GAP, PA 17527
3
Beds
3 / 1
Baths
1,462 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.
0.67 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.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$378K
$342K low$413K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,426 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$214,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$90,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$124,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$214,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$214,800

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.Ranch
CountyLancaster
Lot (acres)The size of the land the home sits on, from county records.0.67
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.Composition Shingle
HeatingThe type of heating system in the home.Baseboard
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 720 ft²Patio · 25 ft²Porch · 216 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Octorara Primary Learning Center
Elementary · Grades KG–2 · 5.0 mi
M
Octorara Junior / Senior High SchoolC-
Middle · Grades 7–12 · 5.0 mi

District: Octorara Area School District

Neighborhood · ZIP 17527These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.78

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.7,099
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.335 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,754
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,195
Average tempThe average temperature here across a full year.52°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

21 Mary Dr 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 74% of homes in Gap 17527
  • Costs more per square foot than 75% of homes in Lancaster County
  • Smaller than 67% of homes in Gap 17527
  • Has a bigger lot than 78% of homes in Lancaster County
  • Older than 68% of homes in Gap 17527

What homes are worth in Gap 17527

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

This home
$251K$957K

This home is worth more than 26% of homes in Gap 17527.

How it measures up in Gap 17527

The dot is this home. The mark in the middle is the typical home in Gap 17527.

Estimated value$377,932
CheaperTypical $458,695Pricier

Pricier than 26% of homes nearby

Price per ft²$259
CheaperTypical $236Pricier

Pricier than 63% of homes nearby

Living area1,462 ft²
SmallerTypical 1,813 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.67 ac
SmallerTypical 0.95 acBigger

Bigger than 39% of homes nearby

Year built1971
OlderTypical 1986Newer

Newer than 32% of homes nearby

How 21 Mary Dr ranks against every home in each area.
MeasureThis homeGap 17527Lancaster County
Estimated valuepricier than$377,93226% of homes48% of homes
Price per ft²pricier than$25963% of homes75% of homes
Living areabigger than1,462 ft²33% of homes37% of homes
Lot sizebigger than0.67 ac39% of homes78% of homes
Year builtnewer than197132% of homes44% of homes

About 21 Mary Dr

How much is 21 Mary Dr, Gap, PA worth?

The TopHap Estimate for 21 Mary Dr, Gap, PA is $377,932 as of Oct 21, 2026. The likely range is $342,457 to $413,407. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 21 Mary Dr, Gap, PA?

21 Mary Dr, Gap, PA has 3 bedrooms, 3 bathrooms, 1,462 square feet of living space and a 0.67-acre lot.

When was 21 Mary Dr, Gap, PA built?

21 Mary Dr, Gap, PA was built in 1971, making it 55 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Mary Dr, Gap, PA?

21 Mary Dr, Gap, PA is assigned to Octorara Primary Learning Center (elementary); Octorara Junior / Senior High School (middle), rated C-. All sit in Octorara Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Mary Dr, Gap, PA compare to other homes in Gap 17527?

Among the 1,800 homes in Gap 17527, it is worth more than 26% of them ($377,932 against a typical $458,695), its price per square foot is higher than 63% of them ($259 against a typical $236), it is bigger than 33% of them (1,462 ft² against a typical 1,813 ft²), its lot is bigger than 39% of them (0.67 ac against a typical 0.95 ac) and it is newer than 32% of them (1971 against a typical 1986). Measured against all of Lancaster County, it is worth more than 48% 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 21 Mary Dr, Gap, PA?

The 2026 property tax bill for 21 Mary Dr, Gap, PA was $6,426. The county assessed it at $214,800.

More homes on Mary Dr

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Assigned schools

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