All fences, walls and hedgerows must be erected or installed within the property lines, and no fences, walls and hedgerows shall be erected so as to encroach upon a public right-of-way. The face of retaining walls shall be located in compliance with the accessory structure setback requirements found in Schedule 5-1, except: when approved by the Municipal Agency, or within buffers, around refuse areas or when used for dog runs, garden enclosures or similar normal residential accessory uses. Back-to-back fences are permitted at the property line. Hedgerows shall be located so that foliage, at full maturity, shall not extend into the public right-of-way.