Police were called to East Kilbride after the sudden death of a 51-year-old man on Thursday.
Emergency services attended a flat at Loch Shin and say a report will be submitted to the Procurator Fiscal.
It is understood the man my have lain undiscovered for more than two weeks.
A Police Scotland spokesperson told Lanarkshire Live: "Officers were called to a report of the sudden death of a 51-year-old man on Loch Shin, East Kilbride around 4pm on Thursday, June 2.
"There do not appear to be any suspicious circumstances and a report will be submitted to the Procurator Fiscal."
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