Park Crescent is at the north end of Portland Place and south of Marylebone Road in London. The crescent consists of elegant stuccoed terraced houses by the architect John Nash, which form a semicircle. The crescent is part of Nash's and wider town-planning visions of Roman-inspired imperial West End approaches to Regent's Park. It was originally conceived as a circus (circle) to be named Regent's Circus but instead Park Square was built to the north. The only buildings on the Regent's Park side of the square are small garden buildings, enabling higher floors of the Park Crescent buildings to have a longer, green northern view.

Portland Place is a street in the Marylebone district of central London. Named after the 3rd Duke of Portland, the unusually wide street is home to the BBC's headquarters Broadcasting House, the Chinese and Polish embassies, the Royal Institute of British Architects and numerous residential mansion blocks.