This pub stands on what was once the site of the Green Dragon in the 18th and 19th centuries, before later becoming the Cambridge Tavern in the 1850s. The pub was renamed the Duke of Buckingham in the 1920s. The pub's interior consists of a large L-shaped main bar room, with a small snug to the rear. The main room has varnished floorboards around the bar counter and two carpeted raised areas, bounded by balustrades, to the front and right side. A series of timber and exposed brick pillars run down the centre of the room. A number of non-load bearing beams cross the ceiling - one of which displays a large laminated Brickwood's Brewery advertising sign. Furnishings consist of traditional tables and chairs, pews and other miscellany. The snug contains comfortable armchairs and sofas. The raised area at the front of the pub is laid out for dining. A television is positioned above the bar counter, showing rolling news, and piped music is played throughout the pub. Collections of old books and ceramic sherry casks sit upon shelves dotted around the bar and the walls are decorated with large images of maritime Portsmouth.