Building Alarm at 135 Greystone Terrace, Single-Family Residence

Summary: San Francisco Fire units responded to a building alarm at 135 Greystone Terrace, a single-family residence between Pemberton and Villa Terrace. The alarm was reported as box 5275, with initial units including Engine 12, Truck 12, and Battalion 5. Upon arrival, responders found no audible alarm and no one home. Investigation revealed the alarm was likely a zone activation, not a specific room. The incident was eventually cleared after the alarm was reset or silenced prior to arrival, and no further action was required.