0332 hours – Box Alarm – Waterman between Regular and Bostick, fire reported in a dwelling at 1532 Waterman Street. Engines 29, 27, 33, Ladder 13, Squad 4, Chief 7. Chief 7 reported smoke showing while enroute. Chief 7 arrived with a dwelling, possibly occupied, going throughout and requested and additional company (Engine 34). Engine 27 stretched. Chief 7 advised Ladder 13 to prepare for ladder operations and that he has 2 dwellings. Central advised they would be sending the commercial box adding Ladder 8, Squad 2, and Chief 1 to the assignment. Companies were ordered out of the exposure D dwelling. Chief 7 reported he had 1 dwelling that fully collapsed and the second dwelling companies will be taking a defensive posture on. Multiple lines along with Ladder 13’s master stream were used to bring the fire under control.