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Single Family ResidenceResidential
$173,551$228 / 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 Sep 24, 2026
Last sold for $113,000 on May 1, 2018

639 MARTINS LN

BETHLEHEM, PA 18018
3
Beds
1
Baths
760 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.
2,737 ft²
Lot SizeThe size of the land the home sits on, from county records.
1885
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$174K
$158K low$189K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$113,000 · May 1, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,859 (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.$63,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$51,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$63,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$63,200

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
8
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
86
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
35
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
StyleThe architectural style of the home, such as ranch or colonial.Split Level
CountyLehigh
HeatingThe type of heating system in the home.Baseboard
GarageWhether the property has a garage, and details like whether it is attached to the home.No Garage

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
Calypso Elementary SchoolB-
Elementary · Grades PK–5 · 0.3 mi
M
Nitschmann Middle SchoolC-
Middle · Grades 6–8 · 0.7 mi
H
Liberty High SchoolD
High · Grades 9–12 · 1.4 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

639 Martins 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 less than 98% of homes in Bethlehem 18018
  • Costs more per square foot than 71% of homes in Bethlehem 18018
  • Among the smallest homes in Bethlehem 18018
  • Has a smaller lot than 82% of homes in Lehigh County
  • Older than 97% of homes in Bethlehem 18018

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
$183K$591K

This home is worth more than 2% 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$173,551
CheaperTypical $288,492Pricier

Pricier than 2% of homes nearby

Price per ft²$228
CheaperTypical $198Pricier

Pricier than 71% of homes nearby

Living area760 ft²
SmallerTypical 1,460 ft²Bigger

Smaller than almost all homes nearby

Lot size2,737 ft²
SmallerTypical 4,182 ft²Bigger

Bigger than 30% of homes nearby

Year built1885
OlderTypical 1925Newer

Newer than 3% of homes nearby

How 639 Martins Ln ranks against every home in each area.
MeasureThis homeBethlehem 18018Lehigh County
Estimated valuepricier than$173,5512% of homes4% of homes
Price per ft²pricier than$22871% of homes66% of homes
Living areabigger than760 ft²almost no homesalmost no homes
Lot sizebigger than2,737 ft²30% of homes18% of homes
Year builtnewer than18853% of homes6% of homes

About 639 Martins Ln

How much is 639 Martins Ln, Bethlehem, PA worth?

The TopHap Estimate for 639 Martins Ln, Bethlehem, PA is $173,551 as of Sep 24, 2026. The likely range is $158,404 to $188,698. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 639 Martins Ln, Bethlehem, PA last sell?

639 Martins Ln, Bethlehem, PA last sold on May 1, 2018 for $113,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 639 Martins Ln, Bethlehem, PA?

639 Martins Ln, Bethlehem, PA has 3 bedrooms, 1 bathrooms and 760 square feet of living space.

When was 639 Martins Ln, Bethlehem, PA built?

639 Martins Ln, Bethlehem, PA was built in 1885, making it 141 years old. It is a split level home. The building has 3 stories.

What schools serve 639 Martins Ln, Bethlehem, PA?

639 Martins Ln, Bethlehem, PA is assigned to Calypso Elementary School (elementary), rated B-; Nitschmann Middle School (middle), 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 639 Martins Ln, Bethlehem, PA compare to other homes in Bethlehem 18018?

Among the 9,659 homes in Bethlehem 18018, it is worth more than 2% of them ($173,551 against a typical $288,492), its price per square foot is higher than 71% of them ($228 against a typical $198), it is bigger than almost none of them (760 ft² against a typical 1,460 ft²), its lot is bigger than 30% of them (2,737 ft² against a typical 4,182 ft²) and it is newer than 3% of them (1885 against a typical 1925). Measured against all of Lehigh County, it is worth more than 4% 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 639 Martins Ln, Bethlehem, PA?

The 2026 property tax bill for 639 Martins Ln, Bethlehem, PA was $1,859. The county assessed it at $63,200.

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