Fire destroyed a home on Drummond Drive on Saturday afternoon and caused significant damage to an adjacent house, Lexington firefighters said.
Fire units were dispatched to 2120 Drummond Drive about 2:30 p.m., but the house already was engulfed in flames when they arrived, Assistant Chief Harold Hoskins said.
An investigation was continuing, but Hoskins said officials think the fire started outside on a porch at the back of the house, then climbed the exterior wall and entered the attic.
Flames damaged a house next door, and heat wrinkled the siding on three other nearby houses, according to Hoskins.
"It could very easily have been two houses destroyed," he said. "It was a very hot fire."