Primary-Residence-Only Rule
Lehigh County imposes no primary-residence requirement on rentals. Allentown does not generally require STRs be owner-occupied, but on lots with an accessory dwelling unit neither unit may be a short-term rental, and the owner must occupy one unit as a permanent residence.
STR Primary-Residence Rules in Lehigh County, PA
Some RestrictionsAllentown Zoning Ordinance Β§660-42(11) (Accessory Dwelling Unit β Short-Term Rental)
On lots with an accessory dwelling unit, neither the principal unit or the accessory unit may be used as a short-term rental.