The winger completed a move to Crystal Palace on Friday.
The winger completed a move to Palace on Friday afternoon after they activated a release clause in his contract at the club.
His return to London brought an end to a short stay in the North East after he joined the Magpies in the January transfer window this year.
He proved to be a big hit at St James’ Park, putting in a series of impressive performances under Rafa Benitez as Newcastle mounted a late bid to avoid relegation from the Premier League.
And he admits that it took him a long time to decide whether he should leave the club to join the Eagles.
“It was an extremely difficult decision to leave Newcastle and it took me about a month or so,” he told nufc.co.uk.
“When I decided that I wanted to go it was about finding the best opportunity for me at this stage of my career. It was a pretty easy decision to choose Crystal Palace because of the direction they’re heading.”
It now remains to be seen where Townsend will fit into Palace’s line up next season given the system they employ.
They have enjoyed great success by playing two wingers in their side, namely Yannick Bolasie and Wilfried Zaha.
Townsend faces a fight to get in ahead of those two, and perhaps this move will see him take up a new central role moving forward as the Eagles look to bounce back from last season's disappointment.