 With increasing urbanisation in suburbs closer to Melbourne, Fern Tree Gully in turn was splintered on 9 October 1963, to form the City of Knox and the Shire of Sherbrooke, which was named on 23 December 1964.On 15 December 1994, the Shire of Sherbrooke was abolished, and, along with the Shires of Lillydale, Healesville and Upper Yarra, was merged into the newly created Shire of Yarra Ranges.The districts around Emerald merged with the neighbouring Shire of Pakenham, into the newly created Shire of Cardinia, while Upper Ferntree Gully and Lysterfield were transferred to the City of Knox.