The firm was founded in 1986 initially as a sole proprietorship but restructured later to respond to expanded workload and changing operating environment. The firm was later incorporated as a Limited liability Company in the year 2006, with the majority shares held by the principal professional engineers of the firm.
After its formation in1986, the firm initially concentrated on buildings, but since then, the firm has expanded its engineering designs and construction services in the other types of civil engineering works, including transportation, infrastructure, energy, water and waste water engineering services.
The range of clients has expanded correspondingly to encompass private clients, public departmes, and other consulting firms.
CGP was registered by the Engineers Registration Board of Kenya (ERB) in 1990 and with the Ministry of Roads and Public Works in year 2003 (Category A). Additionally, the firm was registered as an Environmental Impact Assessment / Audit Expert in 2012 by National Environmental Management Authority (NEMA).