“ After qualifying as an architect, he spent many years in building speculations, and did not, until 1792, return to London and architecture, in which he speedily rose to eminence. He designed numerous mansion-houses for the nobility and gentry in England and Ireland, but he is chiefly celebrated in connection with the great street improvements in London, especially in the Marylebone region, which he helped to transform into Regent's Park. Regent Street, Haymarket Theatre, Langham Place Church, Park Square, and the terraces in Regent's Park are specimens of his designs. ”