Martin Tower plans could generate $2.7M in local taxes. But first the zoning needs to change. Updated May 04, 2021; Facebook Share The proposed Martin Tower redevelopment could generate $2.7 million in increased local real estate taxes, but project developers say they need a zoning change to get it off the ground. The owners of the 53-acre site are pitching a mixed-use redevelopment including medical office buildings, a hotel, a grocery store, gas station and convenience store, retail and apartments. They’ve asked Bethlehem City Council to back a zoning change they say is necessary to lock in agreements with several of those users.