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Single Family ResidenceResidential
$313,425$196 / 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 Sep 24, 2026
Last sold for $190,000 on Apr 3, 2006

521 15TH AVE

BETHLEHEM, PA 18018
3
Beds
1
Baths
1,600 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1926
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
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

$313K
$291K low$335K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$190,000 · Apr 3, 2006

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,344 (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.$147,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$32,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$115,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$147,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$147,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLehigh
Lot (acres)The size of the land the home sits on, from county records.0.21
HeatingThe type of heating system in the home.Baseboard
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, Detached

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.

M
Nitschmann Middle SchoolB-
Middle · Grades 6–8 · 0.5 mi
E
Clearview Elementary SchoolC+
Elementary · Grades KG–5 · 1.3 mi
H
Liberty High SchoolD+
High · Grades 9–12 · 1.8 mi

District: Bethlehem Area School District

Neighborhood · ZIP 18018These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.33,847
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,411 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,513
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,632
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.53%

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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

521 15th 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 more than 66% of homes in Bethlehem 18018
  • Has a bigger lot than 85% of homes in Bethlehem 18018
  • Older than 74% of homes in Lehigh County

What homes are worth in Bethlehem 18018

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

This home
$178K$560K

This home is worth more than 66% of homes in Bethlehem 18018.

How it measures up in Bethlehem 18018

The dot is this home. The mark in the middle is the typical home in Bethlehem 18018.

Estimated value$313,425
CheaperTypical $287,666Pricier

Pricier than 66% of homes nearby

Price per ft²$196
CheaperTypical $198Pricier

Pricier than 48% of homes nearby

Living area1,600 ft²
SmallerTypical 1,458 ft²Bigger

Bigger than 62% of homes nearby

Lot size0.21 ac
SmallerTypical 4,138 ft²Bigger

Bigger than 85% of homes nearby

Year built1926
OlderTypical 1925Newer

Newer than 52% of homes nearby

How 521 15th Ave ranks against every home in each area.
MeasureThis homeBethlehem 18018Lehigh County
Estimated valuepricier than$313,42566% of homes42% of homes
Price per ft²pricier than$19648% of homes36% of homes
Living areabigger than1,600 ft²62% of homes44% of homes
Lot sizebigger than0.21 ac85% of homes49% of homes
Year builtnewer than192652% of homes26% of homes

About 521 15th Ave

How much is 521 15th Ave, Bethlehem, PA worth?

The TopHap Estimate for 521 15th Ave, Bethlehem, PA is $313,425 as of Sep 24, 2026. The likely range is $291,481 to $335,369. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 15th Ave, Bethlehem, PA last sell?

521 15th Ave, Bethlehem, PA last sold on Apr 3, 2006 for $190,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 521 15th Ave, Bethlehem, PA?

521 15th Ave, Bethlehem, PA has 3 bedrooms, 1 bathrooms, 1,600 square feet of living space and a 0.21-acre lot.

When was 521 15th Ave, Bethlehem, PA built?

521 15th Ave, Bethlehem, PA was built in 1926, making it 100 years old. The building has 2 stories.

What schools serve 521 15th Ave, Bethlehem, PA?

521 15th Ave, Bethlehem, PA is assigned to Nitschmann Middle School (middle), rated B-; Clearview Elementary School (elementary), rated C+; Liberty High School (high), rated D+. All sit in Bethlehem Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 15th Ave, Bethlehem, PA compare to other homes in Bethlehem 18018?

Among the 9,659 homes in Bethlehem 18018, it is worth more than 66% of them ($313,425 against a typical $287,666), its price per square foot is higher than 48% of them ($196 against a typical $198), it is bigger than 62% of them (1,600 ft² against a typical 1,458 ft²), its lot is bigger than 85% of them (0.21 ac against a typical 4,138 ft²) and it is newer than 52% of them (1926 against a typical 1925). Measured against all of Lehigh County, it is worth more than 42% 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 521 15th Ave, Bethlehem, PA?

The 2026 property tax bill for 521 15th Ave, Bethlehem, PA was $4,344. The county assessed it at $147,700.

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