Television executive and ex-architecture student Janet Street-Porter asked Piers Gough to design a house for her in London's Smithfield. For the first time on television, she shows the result.

To Alice Rawsthorn, design correspondent of The Financial Times, St Olaf House (1931) is 'a little island of art deco splendour tucked away between the south bank of the River Thames and the railway arches of London Bridge. It's one of those quirky places, where everything down to the tiniest detail was designed in a very particular way.'

Writer Germaine Greer chooses the Glyndebourne Opera House on the Sussex Downs. The building, which opened in 1994, was constructed in just 18 months and was designed by Michael Hopkins and Patty Hopkins.