On 23 July 2014, Davies joined Tottenham Hotspur on a five-year contract for an undisclosed fee. He joined on the same day as his Swansea teammate Michel Vorm, with Gylfi Sigurðsson being exchanged as part of the deal. Davies made his Premier League debut for Tottenham Hotspur as a late substitute in a 0–3 defeat to Liverpool. He made his first start for the club in the league in a 2–1 away win at Hull City on 23 November 2014. He was an unused substitute for the 2015 League Cup Final at Wembley Stadium on 1 March 2015, in which Tottenham were beaten 2–0 by Chelsea.