The fire led to the closure of Route 116 in both in the area of Delancey Road for more than an hour and a half.
According to Trevor Cable, a Croton Falls firefighter, a fire that began as in the chimney spread to the front of the house.
Firefighters received the call at 1:23 p.m. The closure of Route 116 was reported at 2:28 p.m. It was cleared at 4 p.m.
The Croton Falls fire department was assisted by Bedford Hills, Golden Bridge, Katonah and South Salem fire departments.
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