 In 1989, he designed a series of three new villas for the Crown Estate Commissioners in Outer Circle in London's Regent's Park.Building in the park was controversial but said to be in the spirit of the Prince Regent's original though unrealised intentions for the park, which was to contain numerous villas for Regency courtiers surrounding a new royal palace.Terry's three new villas have near-identical plans, based on Palladio's Villa Saraceno, but the external elevations vary, showing respectively Gothic, Italian Mannerist and muscular Neo-classical features in the manner of William Chambers.