Undeveloped land in Upper Darby (PA) is open to almost unlimited business possibilities; depending on the location of its region there may be municipal zoning restrictions within Upper Darby (PA) city limits or residential neighboring areas, for example most cities frown upon setting up a slaughter house in the suburbs or building apartment complexes in a residential Upper Darby (PA) neighborhood whose occupants own their dwellings (owners may want to keep out renters). Careful research is needed prior to signing contracts.