Pardew is a former Hammers manager.
"'It's still special going back and I have still got some staff and ex-players who are still there," Pardew said.
"And obviously there is the connection from Newcastle now with Kevin (Nolan) and Andy (Carroll).
"I just think Upton Park is a great stadium for football - the atmosphere and the way the crowd get involved in the game, it is a bit like what we have here. It is an emotional ground.
"I hope they will be able to transfer that to the Olympic Stadium - I think that is going to be important to West Ham.
"They are going to get more revenue from moving but what they can't lose is that special kind of atmosphere that you can create there. There were some magic nights."