In 1918, after serving as a major in the Royal Garrison Artillery in World War I, Brownrigg's practice in Guildford grew with Leslie Hiscock.

Scott Brownrigg continued to grow through acquisitions including the Scottish practice Keppie Henderson in 1989,[2] Design Research Unit in 2004 and GMW Architects in 2015.

In October 2019, UK publications Construction News and Architects' Journal published a joint investigation into fatalities at Istanbul Airport - nicknamed by workers "the cemetery" as so many have died.

By this point, the official death toll was 55, but unofficial estimates suggested the figure could "be higher than 400".

Scott Brownrigg cannot "control the policies and procedures of our clients", was not "contractually responsible" for on-site delivery and construction, and was "shocked and saddened" by the deaths.