Emergency services attended at a property at Oaks Road, Kenilworth, following a concern for welfare of a man.
As a result a cordon was put in place and the road was closed. The cordon has subsequently been lifted.
Inspector Warren Ayers from Warwickshire Police said: “Emergency services were called to a property shortly after 13.30hrs on Saturday 17 August 2019, following a concern for welfare of a man in his twenties.
“Sadly the man was later pronounced deceased at the scene. His next of kin has been informed.
“The death is not currently being treated as suspicious.
“Due to an unidentified substance believed to be in the property, a specialist team attended the incident as a precautionary measure.
“There is not believed to be a wider risk to the public.
“Thank you to everyone for their patience whilst road closures were in place.”
An investigation is ongoing into the incident.