 In 1806 he induced Parliament to pass an act enclosing the common land of Llanddeiniolen parish, adding over 2,600 acres to his land holdings, and giving him the right as lord of the manor to the slate on the commons.He put down the rioting which resisted exercise of his new rights of control over the commons with the support of a cavalry unit.In 1809 he took over control of slate quarrying on his estate, forming a company of four under his presidency.