Police were called to St Nicholas Way where they found a man who had died.
Officers believe he had been sleeping rough.
They are not treating his death as suspicious, but are still investigating the circumstances.
The Metropolitan Police told MyLondon: “Police are on scene dealing with the tragic death of a male who it is believed has been sleeping rough in Sutton.
“The death is not being treated as suspicious, but the circumstances are still being investigated and next of kin have yet to be informed.”