1970 - Westfield Primary School established.
1971 - Orlando Street Bridge rebuilt.
1971 - Nerrigen Brook Primary School opened.
1972 - Clifton Hills Primary School (then Connell Avenue Primary School) opened.
1972 - Armadale Square Shopping City (now Armadale Central) opened for business on 23 March.
1972 - New Armadale Library opened in Orchard Avenue.
1973 - Morgan Park established for community recreation.
1973 - Roleystone Shopping Centre built.
1973 - Kelmscott Senior High School opened.
1973 - Kingsley Railway Station (now Sherwood) added to the Armadale line.
1974 - Creyk Park opened for recreation.
1974 - John Dunn oval (Third Ave, Kelmscott) opened for recreation.
1976 - History House Municipal Museum officially opened.
1976 - St Francis Xavier church occupied it's new building.
1976 - Closure of the Armadale to Byford / Mundijong railway line.
1976 - Fire destroys Kelmscott Village Shopping Centre. It is rebuilt.
1976 - First Roleystone full-time medical practitioner: Dr M.A. Loeffler.
1977 - Byford Ward becomes part of the Shire of Serpentine-Jarrahdale.
1977 - Roleystone Hall was extended to include a theatre.
1977 - Opening of the Elizabethan Village on Canns Road.
1977 - Forrestdale golf course (nine holes) opened.
1979 - Wungong Dam completed.
1979 - Opening of the Armadale Recreation Centre, now known as the Arena.
1979 - The Town of Armadale was proclaimed.
1979 - Gwynne Park Primary School opened.