The body of Patrick Dagan, 83, was found after a neighbour reported concerns.
Mr Dagan was a lollipop man at St Mary's primary school in the Lochee area of Dundee.
It is thought he may have died a few weeks before his body was discovered on July 31.
Police said there were no suspicious circumstances.
A police spokeswoman said: "Police Scotland can confirm that officers attended at an address in Napier Terrace, Dundee, on Thursday July 31 following a report of the death of an 83-year-old man.
"There are no apparent suspicious circumstances and a report has been submitted to the procurator fiscal."