Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$779,867$255 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $589,000 on Sep 1, 2020

21 RUNNING SPRING LN

GLEN MILLS, PA 19342
4
Beds
2.5
Baths
3,056 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.
1.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
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.

Valuation

$780K
$746K low$814K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$589,000 · Sep 1, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,291 (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.$462,380 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$133,920
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$328,460
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$462,380
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$462,380

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
CountyDELAWARE
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
Garnet Valley High SchoolA+
High · Grades 9–12 · 0.3 mi
M
Garnet Valley Middle SchoolA+
Middle · Grades 6–8 · 0.4 mi
E
Concord Elementary School
Elementary · Grades KG–2 · 0.7 mi

District: Garnet Valley School District

Neighborhood · ZIP 19342These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.80

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.92%
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.1.7%
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.21,043
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,079 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,141
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$165,793
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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

21 Running Spring 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.

  • Worth more than 85% of homes in Delaware County
  • Costs less per square foot than 66% of homes in Glen Mills 19342
  • Bigger than 89% of homes in Delaware County
  • Has a bigger lot than 96% of homes in Delaware County
  • Newer than 93% of homes in Delaware County

What homes are worth in Glen Mills 19342

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

This home
$261K$1.4M

This home is worth more than 65% of homes in Glen Mills 19342.

How it measures up in Glen Mills 19342

The dot is this home. The mark in the middle is the typical home in Glen Mills 19342.

Estimated value$779,867
CheaperTypical $691,587Pricier

Pricier than 65% of homes nearby

Price per ft²$255
CheaperTypical $273Pricier

Pricier than 34% of homes nearby

Living area3,056 ft²
SmallerTypical 2,552 ft²Bigger

Bigger than 66% of homes nearby

Lot size1.22 ac
SmallerTypical 0.75 acBigger

Bigger than 74% of homes nearby

Year built1998
OlderTypical 1990Newer

Newer than 67% of homes nearby

How 21 Running Spring Ln ranks against every home in each area.
MeasureThis homeGlen Mills 19342Delaware County
Estimated valuepricier than$779,86765% of homes85% of homes
Price per ft²pricier than$25534% of homes58% of homes
Living areabigger than3,056 ft²66% of homes89% of homes
Lot sizebigger than1.22 ac74% of homes96% of homes
Year builtnewer than199867% of homes93% of homes

About 21 Running Spring Ln

How much is 21 Running Spring Ln, Glen Mills, PA worth?

The TopHap Estimate for 21 Running Spring Ln, Glen Mills, PA is $779,867 as of Aug 30, 2026. The likely range is $745,833 to $813,901. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Running Spring Ln, Glen Mills, PA last sell?

21 Running Spring Ln, Glen Mills, PA last sold on Sep 1, 2020 for $589,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Running Spring Ln, Glen Mills, PA?

21 Running Spring Ln, Glen Mills, PA has 4 bedrooms, 2.5 bathrooms and 3,056 square feet of living space.

When was 21 Running Spring Ln, Glen Mills, PA built?

21 Running Spring Ln, Glen Mills, PA was built in 1998, making it 28 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Running Spring Ln, Glen Mills, PA?

21 Running Spring Ln, Glen Mills, PA is assigned to Garnet Valley High School (high), rated A+; Garnet Valley Middle School (middle), rated A+; Concord Elementary School (elementary). All sit in Garnet Valley School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Running Spring Ln, Glen Mills, PA compare to other homes in Glen Mills 19342?

Among the 6,118 homes in Glen Mills 19342, it is worth more than 65% of them ($779,867 against a typical $691,587), its price per square foot is higher than 34% of them ($255 against a typical $273), it is bigger than 66% of them (3,056 ft² against a typical 2,552 ft²), its lot is bigger than 74% of them (1.22 ac against a typical 0.75 ac) and it is newer than 67% of them (1998 against a typical 1990). Measured against all of Delaware County, it is worth more than 85% 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 Running Spring Ln, Glen Mills, PA?

The 2026 property tax bill for 21 Running Spring Ln, Glen Mills, PA was $11,291. The county assessed it at $462,380.

More homes on Running Spring Ln

Closest homes

More homes in Glen Mills 19342

Assigned schools

Explore the area

See this home in context

Open 21 Running Spring Ln 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