Complex sentence: It was added to the National Register of Historic Places in 1978, but the building was de-listed in 1986 after being demolished following a fire caused by arson on June 24,1985.
Split into simpler sentences: It was added to the National Register of Historic Places in 1978. The building was de-listed in 1986 after being demolished following a fire caused by arson on June 24,1985.