The law firm has hired Mike Pocock as partner to work on its national planning and environment team based in Manchester.
Pocock will spearhead the company's expansion into the regional planning market, in addition to leading a number of national planning and environmental initiatives.
At DLA Piper he was head of the firm's Sheffield planning team.
Richard Ford, head of the planning and environment team at Pinsent Masons, said: "Mike's arrival at Pinsent Masons underlines the firm's continued expansion in Manchester, with a focus on top-quality development and infrastructure work.
"He is a leading force in the region, and his skills and expertise will add considerably to our national capabilities."
Pocock's arrival brings Pinsent Masons' planning and environmental team to 50 lawyers.
Simon Colvin will continue to lead in the environmental sector, working alongside Pocock.
Mike Edge, head of property at Pinsent Masons' Manchester office, said: "Mike brings a great deal of experience and expertise and further enhances our growing property services offer in Manchester and the regions.
"His expert understanding of planning and compulsory purchases will help us provide our clients with an even better level of advice and service and we welcome him to the group."