San Luis Obispo City Fire responded to reports of a structure fire early Thursday morning.
Fire officials say the fire started at around 2:45 a.m. on the 300 block of Corrida Drive in San Luis Obispo.
When the fire department arrived, they say they saw large flames and smoke outside of the home.
Two people inside of the home were woken up by their smoke alarms and were able to make it out safely.
Fire officials believe the fire was started by ashes from a fireplace being poured outside of the residence.
The fire caused some damage to the outside of the home and also spread to the attic.
Firefighters say this is a good reminder to check your smoke alarm batteries because in this instance it saved two lives and the majority of the property.