Winchester College is an English independent boarding school for pupils aged 13 to 18. Its original medieval buildings from the 1382 foundation remain largely intact, but they have been supplemented by multiple episodes of construction. Additions were made in the medieval and early modern periods. There was a major expansion of boarding accommodation in the Victorian era; further teaching areas were constructed at the turn of the 20th century and more recently.
Among the styles in the architecture of the college are Perpendicular Gothic, Christopher Wren, Brunelleschi, Queen Anne revival, and High Victorian Baronial. Among the architects whose work is represented in the ensemble are William Wynford, William Butterfield, G. S. Repton, G. E. Street, William White, Basil Champneys, E. S. Prior, Herbert Baker, Henry L. G. Hill, and Peter Shepheard. The school has numerous listed buildings, historic structures protected by law, including the medieval buildings and the 1924 War Cloister.