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Single Family ResidenceResidential
$538,922$323 / 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 94How 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
Last sold for $141,210 on Feb 14, 2013

21 OBERLIN AVE

SWARTHMORE, PA 19081
3
Beds
1.5
Baths
1,666 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$539K
$504K low$574K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$141,210 · Feb 14, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,458 (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.$319,110 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$116,830
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$202,280
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$319,110
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$319,110

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.13 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 percent flood zone

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
CountyDELAWARE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2016
Lot (acres)The size of the land the home sits on, from county records.0.25
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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.

E
Swarthmore-rutledge SchoolA+
Elementary · Grades KG–5 · 0.2 mi
M
Strath Haven Middle SchoolA
Middle · Grades 6–8 · 1.5 mi
H
Strath Haven High SchoolA+
High · Grades 9–12 · 1.6 mi

District: Wallingford-Swarthmore School District

Neighborhood · ZIP 19081These 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.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.11,528
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,245 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,187
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$160,591
Average tempThe average temperature here across a full year.55°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.56%

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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 Oberlin Ave 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 67% of homes in Swarthmore
  • Costs more per square foot than 82% of homes in Delaware County
  • Smaller than 72% of homes in Swarthmore
  • Has a bigger lot than 71% of homes in Delaware County
  • Older than 89% of homes in Delaware County

What homes are worth in Swarthmore 19081

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

This home
$154K$1.4M

This home is worth more than 48% of homes in Swarthmore 19081.

How it measures up in Swarthmore 19081

The dot is this home. The mark in the middle is the typical home in Swarthmore 19081.

Estimated value$538,922
CheaperTypical $556,227Pricier

Pricier than 48% of homes nearby

Price per ft²$323
CheaperTypical $275Pricier

Pricier than 77% of homes nearby

Living area1,666 ft²
SmallerTypical 1,800 ft²Bigger

Bigger than 45% of homes nearby

Lot size0.25 ac
SmallerTypical 0.22 acBigger

Bigger than 60% of homes nearby

Year built1920
OlderTypical 1952Newer

Newer than 16% of homes nearby

How 21 Oberlin Ave ranks against every home in each area.
MeasureThis homeSwarthmoreSwarthmore 19081Delaware County
Estimated valuepricier than$538,92233% of homes48% of homes65% of homes
Price per ft²pricier than$32368% of homes77% of homes82% of homes
Living areabigger than1,666 ft²28% of homes45% of homes54% of homes
Lot sizebigger than0.25 ac43% of homes60% of homes71% of homes
Year builtnewer than192028% of homes16% of homes11% of homes

About 21 Oberlin Ave

How much is 21 Oberlin Ave, Swarthmore, PA worth?

The TopHap Estimate for 21 Oberlin Ave, Swarthmore, PA is $538,922 as of Sep 24, 2026. The likely range is $504,059 to $573,785. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Oberlin Ave, Swarthmore, PA last sell?

21 Oberlin Ave, Swarthmore, PA last sold on Feb 14, 2013 for $141,210, according to the county's recorded deed.

How big is 21 Oberlin Ave, Swarthmore, PA?

21 Oberlin Ave, Swarthmore, PA has 3 bedrooms, 1.5 bathrooms, 1,666 square feet of living space and a 0.25-acre lot.

When was 21 Oberlin Ave, Swarthmore, PA built?

21 Oberlin Ave, Swarthmore, PA was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 21 Oberlin Ave, Swarthmore, PA?

21 Oberlin Ave, Swarthmore, PA is assigned to Swarthmore-rutledge School (elementary), rated A+; Strath Haven Middle School (middle), rated A; Strath Haven High School (high), rated A+. All sit in Wallingford-Swarthmore School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Oberlin Ave, Swarthmore, PA compare to other homes in Swarthmore 19081?

Among the 3,261 homes in Swarthmore 19081, it is worth more than 48% of them ($538,922 against a typical $556,227), its price per square foot is higher than 77% of them ($323 against a typical $275), it is bigger than 45% of them (1,666 ft² against a typical 1,800 ft²), its lot is bigger than 60% of them (0.25 ac against a typical 0.22 ac) and it is newer than 16% of them (1920 against a typical 1952). Measured against all of Delaware County, it is worth more than 65% 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 Oberlin Ave, Swarthmore, PA?

The 2026 property tax bill for 21 Oberlin Ave, Swarthmore, PA was $12,458. The county assessed it at $319,110.

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