Burnet designed many of Victorian Glasgow's public buildings, employing a range of styles, including Neoclassical, Gothic, Renaissance, Italianate and Scottish Baronial .
The eldest, George Wardlaw, grew up to become Sheriff Substitute of Aberdeen but predeceased his father in an accident on a bamboo bicycle.
He won commissions in the 1860s from Glasgow merchants and shipowners, building large baronial houses for them at Auchendennan, Arden, Kildalton and Kilmahew.
[2] In 1869 he had a business address at 150 St Vincent Street in Glasgow and lived in Victoria Crescent Road in the Dowanhill area of the city.
As his son John James took a greater role in the architects' practice, Burnet was less active in the design of buildings, acting increasingly as a consultant.