For any commercial or manufacturing development on a zoning lot adjoining a Residence District boundary, there shall be in the open area required by the provisions of Sections 33-29 and 43-30 (SPECIAL PROVISIONS APPLYING ALONG DISTRICT BOUNDARIES) along the lot line adjoining the Residence District, a strip at least four feet wide, densely planted with evergreen shrubs at least four feet high at the time of planting and complying with the provisions applicable to screening for parking areas as set forth in Section 107-483 (Planting and screening for open parking areas).