The homestead built in 1844 by lawyer Andrew McCrae and his artist wife Georgiana is a rare example of drop slab construction. Georgiana’s great-great-great grandson sold it to the National Trust in 1970.

The Homestead is one of Victoria’s oldest, original existing houses, and was built on a large lease in the Port Phillip colony, Arthur’s Seat Run, comprising 33 square miles or 20,500 acres (8,296ha). The building was designed by Georgiana McCrae who was the illegitimate daughter of the 5th Duke of Gordon, a talented artist and dedicated diarist. The McCrae family were one of the first six pioneer families to establish properties on the Mornington Peninsula.

The Burrell family lived at the homestead for eighty years and were a dedicated farming family who made a significant contribution to the Mornington Peninsula.

The Visitor’s Centre, located on the property, features galleries which showcase the McCrae’s art and memorabilia and the photography, artifacts and objects from the Burrell-Twycross family who lived at McCrae Homestead from 1851 to 1926.
Source: https://www.nationaltrust.org.au/places/mccrae-homestead/

I have investigated this property a few times in conjunction with the National Trust and was lucky enough to be one of the first people to do so. This is the typical example of just because it is old, doesn't mean it is haunted. Various investigations reported no results.