Between 1985 and 1987 Grant completed his first whare whakairo (carved house, meeting house), Te Matapihi o te Rangi at Te Papa o te Aroha Marae in Tokoroa.[4] His second whare whakairo was Ihenga at Tangatarua Marae, on the Waiariki Institute of Technology campus in Rotorua. Ihenga was completed between 1993 and 1996. In 2007 Grant co-authored Ihenga: Te Haerenga Hou, The Evolution of Māori Carving in the 20th Century with Damian Skinner.[3] In 2009 Grant completed Ngākau Māhaki at Te Noho Kotahitanga Marae on the Unitec Institute of Technology Mt Albert campus.[5]