Allen, less than two years from retirement, died last year battling a Hollywood Hills blaze when the ceiling of a three-story house under construction collapsed on him.
In an effort to determine who was responsible for the death, authorities have been investigating the construction of the property and an architect who redesigned the house, says the L.A. Times.
According to LAPD arrest records, a man who lives at the home where the fire occurred was arrested Feb. 11 at Los Angeles International Airport on suspicion of voluntary manslaughter. It was unknown if the person detained was the man under investigation.
Officials say the weight of soaked insulation -- caused by attic flooding after plastic sprinkler pipes melted -- appears to have caused the collapse which trapped Allen. His heart had stopped and he was not breathing when rescuers reached him.
UPDATED 1:33 p.m. - Architect Gerhard Becker, 48, has been charged with involuntary manslaughter in the death of Glenn Allen. The German national faces up to four years in prison if convicted. Becker, who remains in jail, was the architect and main contractor for the luxury home that caught fire on Feb. 16, 2011, say prosecutors.