The Adjutant General's Corps HQ (former Royal Army Pay Corps) is at Worthy Down Barracks off the A34 north of Winchester at Kings Worthy, since 2012 the home of the Defence School of Personnel Administration. Hyland Edgar Driver, the landscape architect for the Olympic Park is on the B3354 in Colden Common, west of Winchester. To the north-west, the Leckford Estate, with Longstock Park, next door provides much of the milk, mushrooms, fruit, honey and free-range chicken for Waitrose; John Spedan Lewis, founder of John Lewis, lived there until his death in 1963.