As part of Western Australia's 1979 sesquicentennial celebrations a machinery museum was built and the other buildings were restored to original condition.

[2] Today, Avondale is managed by the National Trust of Western Australia and is open to the public at varying times throughout the year.

Watson was to map out a number of lots in the area including the western boundary for Beverley town site.

Stirling as Governor and Currie as harbour master were not paid salaries by the colony but given land grants as compensation for their services.

In 1978, surveyors using current equipment were engaged to determine the exact location of these original holdings, and commented on the remarkable accuracy of Watson's survey 142 years before.

Avondale had been a pastoral property until deLisle's arrival, over the next ten years sections of the estate were sold off to fund its development.

During this period, the house was expanded and the stable built, which included 20 horse stalls with hollow walls and an overhead loft.

John Hall was sent to Avondale in April 1910 to locate all improvements and draw subdivision lines following existing fencing where possible.

[2] Hall divided Avondale into nine substantial size farms whose boundaries have remained unchanged since, the 40 acres (160,000 m2) that had been occupied by the golf course was made into small lots which have since been further subdivided.

Avondale was used as an assembly and holding ground for dairy cattle, prior to them being sent to group settlers in the state's South West.

In 1918 Professor Dakin of the University of Western Australia identified the disease as a toxaemia of bacterial origin but was unable to establish the source.

Bennetts commenced an immediate investigation into the disease, using alleyways and open space around the department's city offices to house the sheep needed for the research.

[2] In 1934, Bennetts teamed with state botanist Charles Gardner to study the toxic effect of native plants species on sheep.

[9] During 1935, investigations into the effects of castrating male lambs with either mechanical pincers compared to using a knife, both of these methods have since been replaced with rubber elastrator rings.

The experiment on 499 sheep concluded that no significant differences were observable in respect of mortality, maturity rates and meat quality.

It was discovered that all were susceptible to cutworm with greater damage occurring later in the season; early trails of the insecticide DDT was said to show promising results in combating this.

[12] In 1942 there was some pioneering in the development and use of contour banks, the equipment required a team 4 horses or two Clydesdales, a teamster and two labourers.

Through the 1950s Avondale had monitored its sheep flocks as part of the research into Dwalganup strain of clover as a livestock feed and its effect on ewe fertility.

Many Clydesdales were to follow the first two bay mares with the consignment note description "for lions food, freight payable by consignee".

Since the opening of the museum in 1978 Avondale again utilised Clydesdales for demonstrations of the old equipment these horse are sold as pets once they are incapable of working.