In view of his 389,000 followers, he captioned the post: “Misspent youth was had on thus staircase.”
Many fans will recall the time David pushed his mum Gail, played by Corrie legend Helen Worth down the stairs.
Paddy Bever, who plays Jack’s on-screen son Max, was among the first to respond, writing: “Fuming. Just found out there’s no upstairs.”
While Jamie Kenna, who recently exited the soap as Fiz Stape’s ditched husband Phill Whittaker, commented: “WTF the house not real?!?!”