The Glass House is a heritage-listed domestic dwelling at 80 The Bulwark, Castlecrag, Sydney, New South Wales, Australia.

[citation needed] The Glass House was designed by Sydney architects Ruth and Bill Lucas as a home for him to share with his wife and their children and was also to be used as a studio for their architectural practice and completed in 1957.

[4] Lucas' design projects included educational centres, an Aboriginal women's refuge, and furniture and theatre sets.

[8] Docomomo International recognises the Glass House as a seminal example of the "shelter-in-nature" minimalist compositions constructed in northern Sydney post World War II.

William J. R. Curtis, author of Modern Architecture since 1900, singles out the Glass House as a remarkable example of an Australian adaptation of modernist principles, being "so understated that it virtually disappeared into its wooded setting".

[citation needed] The Glass House is a single-storey residence built over a steeply sloping bush site.

Safety mesh was stretched over the purlins and supported a 57-gram (2 oz) white fibre-glass blanket between clear Visqueen and double-sided sisalation.

This Wikipedia article was originally based on The Glass House, entry number 01981 in the New South Wales State Heritage Register published by the State of New South Wales (Department of Planning and Environment) 2018 under CC-BY 4.0 licence, accessed on {{{accessdate}}}.