Charles Hagan has signed on loan for National Conference South side Hampton & Richmond Borough.
Hagan will stay with the Beavers until January and could make his debut against Ebbsfleet at the Beveree Stadium on Saturday.
The former Chelsea striker extended his contract at Hillsborough over the summer after joining the Owls on a two-year scholarship in July 2018.
Those two years were littered with success as Hagan was part of the Under-18 squad that posted a memorable league double, winning both the Northern and National Championship.
Hagan scored in the National play-off final at Hillsborough as the Owls beat Cardiff 3-2.
He posted his maiden first team appearance for Wednesday in the Carabao Cup against Fulham at Craven Cottage last season.