This is another example of the constructions that Henry Halloran had built on some of his estates during the Great Depression.
These structures were mainly confined to 3 areas: Tanilba Bay, Stanwell Tops near Wollongong, and Environa near Queanbeyan, but Tanilba Bay was the principal focus of Henry Halloran’s stonework and constructions.
The location today of the Summer House would have been in the grounds of Tanilba House when it was built.
A lime kiln is located behind the Summerhouse. The chemical equation for the production of calcium oxide (quicklime) from calcium carbonate (oyster shells) through calcination is:
CaCO3 (calcium carbonate) + heat = CaO (calcium oxide) + CO2(carbon dioxide)
This process removes the carbon dioxide from the shells, leaving behind the calcium oxide, which is the lime. The lime was mixed with sand to make mortar. This mortar was used to build Tanilba House.
Other Summerhouses by Henry Halloran
This is another example of a Summerhouse that Henry Halloran had constructed on his estate in Currangong which is located between Nowra & Jervis Bay on the south coast of New South Wales. This Summerhouse was constructed in 1936.