Group finance director David Thomas will take over as the house-builder's chief executive on 1st July 2015.
Mark Clare said that he wanted to develop his non-executive career. "After nine years leading the group, now is the right time to hand over the reins," he said. He will remain with Barratt until the end of October 2015 to help with the transition.
David Thomas joined Barratt in 2009. He has previously worked for Game Group, Millennium & Copthorne Hotels, House of Fraser and Forte.
Barratt chairman John Allan said: "We are very sorry to see Mark go and he will leave a tremendous legacy. He has transformed the operations of the company, led a very successful land investment strategy and realigned the business around its customers. He has also played an important role in the wider industry in terms of shaping housing policy and addressing the longer term challenges the sector faces. On behalf of the bard I would like to thank him for everything he has achieved.”
He added: "In David Thomas, the board is extremely pleased to have such a strong successor in place. Over the last six years David has played a key role in developing the group's strategy, driving performance and embedding the disciplined approach that has served us so well. We are confident that David will lead the group very effectively and will deliver both the medium term targets for the business and the longer term strategy.”