Box 1-3 dispatched at 1815 hours for smoke coming from a structure in the area of 630 Curtin Street. Uptown companies Wagon 2 and Tower 2 arrived with smoke from an occupied, 2 story, semi-attached. Companies quickly went to work on a fire on the first floor. Captain 2 (Enterline) requested the first alarm as heavy fire and smoke issued from the structure. A good knock on the fire kept extension to a minimum and firefighters were able to clear smoke and perform overhaul. Control marked in about 40 minutes.