A two-alarm fire broke out just before 5 p.m. on the 9200 block of Forest Greens Drive in Lorton, Virginia Saturday night.
The fire started because of an unattended candle, according to the Fairfax County Fire and Rescue.
Two women, a girl, and a dog were inside at the time and all made it out safely, according to the fire department.
Authorities are praising a "hero" neighbor, Bill Kim, for running into the burning house to help.
Fire officials say Mr. Kim's daughter alerted him to the flames and he immediately went down to the house. He ran through the front door and told the women inside they needed to get out immediately, according to fire officials. They say moments later flames tore through the front door.
The fire department says his actions made a huge difference in the outcome of the fire.