BBC Radio Norfolk's Jack Maclean said the blaze appeared to be in a flat above the pub.
"You can see how badly damaged the roof is," he said.
"There are tiles missing on both the front of the building and the back."
No injuries have been reported.
Jayden StraceyThe fire was said to have been in a flat above the former Cat and Fiddle pub in NorwichJack Maclean/BBCA BBC Radio Norfolk reporter said the roof of the building was badly damaged
