Pru Sanderson, in her groundbreaking ‘City of Kew Urban Conservation Study : Volume 2 - Development History’ (1988), summarised the periods of urban development and subdivisions of land in Kew. The periods that she identified included 1845-1880, 1880-1893, 1893-1921, 1921-1933, 1933-1943, and Post-War Development. These periods were selected as they represented periods of rapid growth or decline in urban development. An obvious starting point for Sanderson’s groupings involved population growth and the associated economic cycles. These cycles also highlighted urban expansion onto land that was predominantly rural, although in other cases it represented the decline and breakup of large estates. A number of the plans in the Kew Historical Society’s collection can also be found in other collections, such as those of the State Library of Victoria and the Boroondara Library Service. A number are however unique to the collection.The Kew Historical Society collection includes almost 100 subdivision plans pertaining to suburbs of the City of Melbourne. Most of these are of Kew, Kew East or Studley Park, although a smaller number are plans of Camberwell, Deepdene, Balwyn and Hawthorn. It is believed that the majority of the plans were gifted to the Society by persons connected with the real estate firm - J. R. Mathers and McMillan, 136 Cotham Road, Kew. The Plans in the collection are rarely in pristine form, being working plans on which the agent would write notes and record lots sold and the prices of these. The subdivision plans are historically significant examples of the growth of urban Melbourne from the beginning of the 20th Century up until the 1980s. A number of the plans are double-sided and often include a photograph on the reverse. A number of the latter are by noted photographers such as J.E. Barnes.In November 1917, the Ermington Estate was advertised as an ‘Executor’s Sale’. It included the 10-roomed villa residence, ‘Ermington’, home of the late Mrs. Lorimer, and 10 ‘magnificent allotments’. The plan in the Kew Historical Society Collection is a little more specific. Ermington is described as having 9 Rooms &c. and there are 11 lots shown on the west side of Hillcrest Avenue. In the plan, the latter is named as ‘Hill Crest Avenue’. The plan indicates that the subdivision was based on the surveying work of Johnson & Tait. Opposite Ermington, the existing house ‘Parkhill’ is identified. A faded stamp on two parts of the plan indicates that it was in the possession of Jas. [R.] Mathers, Financial Agent, [136] Cotham Road, Kew.subdivision plans - kew, ermington heights estate - kew heights