Grant completed his dual urban and rural valuation degree at Lincoln College and moved to Rotorua in 1982. He spent five years working for Valuation New Zealand in Rotorua, Taupo and Whakatane. He joined Reid and Reynolds in 1987 and became a director the following year. Grant specialises in the commercial and industrial sectors, with a special focus on CBD, accommodation and tourism properties. He also specialises in Maori assets including insurance valuations of Marae. Grant was appointed a Fellow of the Property Institute of New Zealand and the New Zealand Institute of Valuers in 2002. He is a very keen multi-sporter having represented New Zealand at age group level for triathlon. Grant has a long involvement in various sports clubs in Rotorua and is currently the chairman of the Rotorua Trails Trust having previously been a long-term chairman of Sport Bay of Plenty.