The Conservatives have held onto their overall majority despite losing seats.
It was a good night for the Lib Dems who gained three seats to take their total to eight.
The Tories have held power in Welwyn since 2002. They currently have a majority of 2 over the other parties.
Early turnout figures in the council elections in the Anglia region suggest only a third of voters bothered to cast their ballot.
All the political parties will be weighing up gains and losses in local elections across the Anglia region.
Counting will start at 10pm across the Anglia region in the local council election with results coming through in the early hours of Friday.