Queensland Police were called to an address in Caboolture South about 9.15am for a welfare check.
Officers found a 41-year-old man's body inside the home.
A 23-year-old man is helping police with their inquiries.
"A crime scene has been established and investigations are ongoing," police said.
Police are set to hold a media conference later today in relation to the discovery of the man's body.
More to come…