The company was established by a former joiner, John Muir, in 1973,[6][7] following his departure as managing director of Scothomes, part of Scottish Homes.[8] John Muir would serve in a senior capacity at the company for over 50 years; Muir's sons, Ronnie and Alan, have also served as directors of Muir Group.[9][10]
In mid 2011, the company recorded a steep increase in year-on-year profits.[5] During late 2017, it was announced that Muir Group planned to build up to 75 per cent more new homes each year in a bid to ensure the availability of adequate affordable housing.[15]
In the early 2020s, Muir Group announced that it would be building a greater proportion of bungalows in some of its housing schemes in response to demographic changes.[16][17] During 2022, the firm relaunched its shared ownership offering aimed at providing affordable housing.[18] That sane year, Muir Group completed a stock transfer with Manchester Jewish Housing Association to expand its independent living provision.[19]
By 2023, Muir Group comprised six subsidiaries, including construction, homes, timber systems, property development, and property investment arms, as well as owning and operating Deer Park Golf and Country Club in Livingston;[20] by this point, the company had developed £1.5 billion's worth of commercial buildings across the UK and had built in excess of 4,000 homes across Scotland.[9] That same year, the firm incurred a loss of £127,000; this increased to £2.8 million during the following year.[21][22]
