On 1 January 1946, the Campbelltown District Council became a town with its own municipal office and, on 6 May 1960, it was proclaimed a city.

[citation needed] Lochend was designed by George Strickland Kingston, and built of local river stone.

The next owner, retired sheep farmer David Mundy, built the two-storey house Lochiel Park, on a rise just to the south of Lochend.

The Hobbs sold both houses to the South Australian Government in 1947, and Lochiel Park became a junior boys' reformatory.

It is a listed building, as a place of state heritage significance as well as being on the Register of the National Estate.

It is owned in trust by the City of Campbelltown,[4] and open to the public for two hours on the first Sunday of every alternate month.

In 2002 the South Australian Government under Premier Mike Rann announced the development of an ecovillage on the site of the Lochiel Park junior boys' reformatory/[10] TAFE college.

The remaining area was to become public parkland, incorporating and urban forest and wetlands to process the stormwater.

[12] Announcing the development in 2002, Premier Mike Rann said: "I want South Australia to become a world leader in a new green approach to the way we all live.