- for repair bulging of front wall by installing start bolts, replacing rear sagging joists, repair deteriorated floor sheathing throughout, repair roof, and remove backyard trees, as per engineers report, to resolve case #164756. Abutting sidewalk must be closed with fencing a minimum of 6 in height. Separate streets department permit required for sidewalk closure. A separate permit is required for any additional alterations that are not specifically addressed on case #164756.