In each TF zone that abuts an R1 residential zone in existence at the time the TF zone is established, a buffer area shall be established adjacent to all parcels within the R1 zone neighborhood, and shall be maintained so long as those adjacent parcels remain zoned R1. The buffer area shall be sixty-five (65) feet wide as measured from the nearest residentially zoned property lines within the adjacent R1 zone. The buffer area shall only be used for landscaping, roads, walkways, curbing and other similar improvements. No buildings or parking spaces (other than on-street parking) shall be allowed within a buffer area, except as provided for in Section 14.17C.090, Provo City Code, and except for buildings for parking attendants, hospitality or security personnel, and utility improvements. The buffer area shall not be required along an adjacent parcel or parcels under the same or affiliated ownership as the parcel or parcels within the TF zone.