Main Line mansion fire under investigation

Crews respond to a fire that broke out at Radnor Township mansion on Wednesday, July 9, 2014. (Photo from Twitter user @RADNORTOWNSHIP)

Fire investigators on Thursday morning inspected the damage at a Main Line mansion in an effort to determine the cause of a blaze that ripped through a wing of the 6,200-square-foot stone house.

The fire broke out just before 4:15 p.m. Wednesday at the home on the 200 block of Wyndom Lane in Radnor Township, Delaware County.

Preliminary investigation indicated that the homeowner's vehicle caught fire, possibly from gasoline spilled while he was working on it, police said. The flames are believed to have then spread from the vehicle to an overpass connecting the 3-car garage and the 2-story mansion.

Investigators said Thursday the main part of the house suffered smoke damage, but remained structurally sound.

The owner suffered burn injuries and was taken to Crozer-Chester Medical Center for treatment, officials said. He is expected to recover.

Property records  show the home is owned by Joseph M. Montrella, a stone mason who built the 6,200-square-foot house in 2001, and has an official estimated market value of $1.4 million.

Multiple fire companies responded to the blaze.

Contact Emily Babay at 215-854-2153215-854-2153 or Follow @emilybabay on Twitter.

Contact the Breaking News Desk at 215-854-2443215-854-2443 or Follow @phillynews on Twitter.