Roger Cartwright trained as a forester in 1958 and qualified as a landscape architect in 1964.

When he worked for Lancashire County Council from 1967-1970, he was the landscape architect on the Morecambe Bay Economic Study Team.

Since starting in private practice in 1991, he has prepared Management Plans and helped with Woodland Grant Schemes and Countryside Stewardship applications and the implementation of design and conservation work on a large number of small estates and farms in the Lake District, Cumbria and Lancashire, (particularly in the Arnside Silverdale AONB).