January 1894
Serpentine Road District established
January 1902
Jarrahdale Road District established
01 August 1913
Serpentine–Jarrahdale Road District established
01 July 1961
Shire of Serpentine Jarrahdale established
20 October 1961
Serpentine Dam opened
17 June 1977
Shire of Serpentine Jarrahdale acquired Byford from Shire of Armadale-Kelmscott
January 1997
The National Trust (WA) classified Jarrahdale as a Heritage Town