Weston Williamson was established in 1985 by Andrew Weston and Chris Williamson, who met whilst studying architecture. Weston and Williamson had also both studied with Steve Humphreys at Leicester Polytechnic School of Architecture, who joined the practice in 1991. In 2008 Rob Naybour became a fourth director.
In 2013 Weston Williamson became an LLP forming WestonWilliamson+Partners with the introduction of 9 new partners. In 2022 WestonWilliamson+Partners was acquired by Egis Group, forming part of their Architecture Line.
^Edwards, Brian (1997), "Part One:Perspectives on station architecture", The Modern Station: New Approaches to Railway Architecture, Taylor & Francis, ISBN0-419-19680-3 (electronic pages are unnumbered - see Suburban stations section "The Jubilee Line extension")