The Merchant Adventurers' Hall is the largest timber-framed guildhall in Britain, completed around 1361 and continuously used since then. The great hall on the upper floor retains its original timber structure, with oak posts and a crown-post roof that gives the interior a scale and drama unusual for a commercial rather than ecclesiastical building. The undercroft below was used as a hospital and almshouse from the guild's foundation; later centuries added a chapel and various service rooms. The whole complex is remarkably complete.
What makes the hall distinctive is its continuity: the Company of Merchant Adventurers still owns and manages the building and still meets here formally, making this one of the oldest continuously active guilds in the world operating from its original premises. The hall is open to the public for most of the year with an admission charge. It stands between Fossgate and the Piccadilly area, a short walk from the Shambles, and is often missed by visitors who concentrate on the area north of the river.