Grant moved to Whangarei in 1974 to work as a civil structural engineer and over a working career of more than 40 years helped develop a consulting engineering practice of over 20 professional and technical staff.

Following retirement from Richardson Stevens consultants Ltd in 2017, he has continued a strong interest, in Whangarei's built environment and with current building regulations and methods.Since retirement he has started a boutique engineering consultancy, Hapai Structural Geotechnical to maintain his interest in specific engineering areas and further develop technical competency.

Grant’s involvement with many major projects around Whangarei including the refinery expansion, Hundertwasser project, commercial building development, seismic investigation and upgrading of many of Whangarei’s old buildings, means that he is well qualified to
assist the Trust in the procurement of a new theatre and performing arts precinct at Forum North.