The Ionic Villa is at the broadest end of the site and so has more depth before meeting the slope down to the Regents Canal. The plan therefore has a narrow front with a depth unlike that of the succeeding villas. It is based on a design by Andrea Palladio for Signor Girolamo Ragona at Le Ghissole, published in the Quattro Libri. This Palladian plan has a familiar early-Georgian external treatment. The building is constructed in loadbearing brickwork, with natural and reconstructed stone dressings, and faced in stucco. The details emphasise the finer points of the Ionic Order.