Director Amanda Staveley confirmed the new owners are looking to invest in all areas of the football club, which involves upgrading outdated facilities.
Shearer, speaking to Gary Neville on The Overlap, revealed the training centre is identical to how it looked 15 years ago when he retired.
United’s record goalscorer also referenced some of the talent Newcastle have let go over the years – and insists that needs to end.
He said: “The academy needs investment, you don’t get anything without putting something in there and for the last 14 years, it’s had nothing.
“The training ground and academy is exactly how it was when I left back in 2006. It might have had a lick of paint but other than that, nothing.
“When you look at the players that have come out of the North East, whether that’s Peter Beardsley, Steve Bruce, Michael Carrick, Alan Thompson, Steve Watson, Lee Clark - all of these guys and many guys before that, it’s incredible.
“Going forward, whatever happens, that has to change because there’s far too much talent that has gone from this area and signed for other clubs.
“That has to change, and I’m hopeful that it will.
“It has to be everything. It has to be an investment in Newcastle’s training ground, academy, scouting, coaching because without all that, players are still going to go to other football clubs.”
Former long-serving goalkeeper Steve Harper is leading the change in direction for the academy.

5. City look to revive Kane deal
Manchester City have revived their interest in a move for Harry Kane, and are willing to test Tottenham's resolve in the January transfer window. (ESPN) (Photo by Clive Rose/Getty Images) Photo: Clive Rose

6. Villa could move for Kent
Aston Villa could beat Leeds United to the signing of Rangers winger Ryan Kent after Steven Gerrard’s move to Villa Park. (Daily Record) (Photo by Ian MacNicol/Getty Images) Photo: Ian MacNicol

7. Howe targets former players
Eddie Howe is considering making some of his former Bournemouth players top transfer targets for Newcastle United in January. Nathan Ake, Jefferson Lerma, and Lloyd Kelly are all on his radar. (90min) (Photo by Alex Livesey/Getty Images) Photo: Alex Livesey

8. Nketiah in demand
West Ham United, Crystal Palace, and Leeds United are interested in signing Arsenal striker Eddie Nketiah. (Transfer Market Web) (Photo by Alex Pantling/Getty Images) Photo: Alex Pantling

