[2] Peet was involved in subdividing much of Perth into estates in the early 20th century,[2][4] including in High Wycombe, Kalamunda, Gooseberry Hill, Forrestfield, Maida Vale and Guildford.
[2] Peet was also involved with the Boy Scout movement in Western Australia, the YMCA, and was a trustee of Trinity Church for several years.
[2] During World War I Peet had an active role in the West Australian Sandbag Fund.
[4] He also donated the land in Mount Hawthorn upon which, in 1916, volunteers built Anzac Cottage for the district's first war veteran to return home.
[3] Peet died on 26 August 1935 in a private hospital in Mount Lawley, after suffering from a short illness.