In his early days at Lowerdown he specialized in slipware before turning his attention to stoneware and fine porcelain. The porcelain work is characterized by fine carving and his pale green celadon glaze. He makes his own tools from simple materials, and uses both kick- and power wheels.
Since 1970 David's son Jeremy Leach has potted at Lowerdown. The pottery's gallery displays much of David's work, and the work of other fine potters - notably that of his sons Jeremy and Simon.