No, just a set.
Monk's Cafe was the name given to the diner in the show, but the exterior shot used for the diner is the real Tom's Restaurant in NYC. See the Wikipedia article in Related links. Monk's. Tom's Restaurant is the "real" NYC diner.
His real name is Jerome Seinfeld.
David Puddy's (From Seinfeld) real name is Patrick Warburton.
Are you crazy?! Of course its not real!..............(hmm....wait a minute....it....could actually.....)
Jerome Allen Seinfeld was born on April 29, 1954 in Massapequa, New York.
Everyone knows on the show his mothers name is Helen Seinfeld. In real life his mothers name is Betty Seinfeld.
Yes, it was in Seinfeld.
No it is not real it is just a funny(opinion) show that is based in New York City.
He was a real estate agent
Apparently, the character of Elaine was an amalgam of Larry David's and Jerry Seinfeld's real-life girlfriends during their early days in New York as struggling comedians.
Kruger
Yes he is. He is also a writer, actor and producer.