Dds 2019 cbc: convert existing 3 du to 12 du, new 4th story addition on top of existing 3 story brick building with basement, new 4 story with basement addition at rear of existing building, interior alterations including mep work to all du's, new trash enclosure, new rear balcony (at 1st, 2nd, 3rd & 4th floors), new side balcony (at 1st, 2nd & 3rd floors), new front patio (at 4th floor) & new open steel deck & egress stair system on the side of existing building. (occupancy: r2/construction class 3a) all as per plans. consultant reviewer: v3 companies of il