The 4 aerial photos here are from Mike Burton and provide a wonderful snapshot of the Culla Hill (now called Sweeney's) property. The aerial views are undated but would likely be from the 1960s or 70s.
In this photo, we can see what seems to be a house site on the other side of Sweeneys Lane which would be on 'Yarra Braes'. There is a good photograph of a substantial weatherboard house with cast-iron-lace verandah titled 'Yarra Brae Park' in the Eltham District Historical Society Collection. I believe this would have been built by John Francis Rutter 1842-1906 and his wife Elizabeth, possibly in the 1890s. I presume this is the same dwelling burnt out in the 1939 Black Friday fires. It was then owned by Hubert Rutter and family.