Waratah Secondary House by Anthrosite is an experiment in affordable housing that is formed by clear fundamental principles: reduce costs by maximum efficiency. The simple, box type is created using high-performance, prefabricated materials, which reduces construction time and costs. Let’s take a closer look…
“Our client championed flexibility at every available opportunity. As built, Secondary house is a one bed studio dwelling, work from home or commercial studio space. Splitting the open studio into two equal (bed) rooms provides additional rental options.” – Anthrosite
The primary living level is elevated 1.2m above natural land due to flood mitigation controls. Stairs, decks, and earth mounding are among the hard and soft landscaping features added. These outdoor interfaces provide distinct areas that are both accessible and separate for residents.
A flood resistant masonry base was used in combination with prefabricated, modular components such as structurally insulated wall and roof panels, pre-finished fibre cement sheet panels, metal mesh fencing panels, and modular joinery, all of which were stated to minimize on-site waste by off-site prefabrication. A simple, low maintenance building form was selected for efficiency with on-site finishing kept to a minimum.
“With budget limitations, we prioritised the physical experience over technology. Our priority was not on energy saving by means of integrated building systems; we invested in the structural building envelope. Structural Insulated Panels (SIPs) were selected as the primary material due to their environmental benefits, superior insulation and speed of installation. Big openings provide the ability to alternately capture and purge heat as required through double glazed, timber operable doors and windows, promoting cross ventilation and providing thermal comfort to the inhabitants to reduce heating and cooling costs.” – Anthrosite
Waratah Secondary House by Anthrosite is a project that aims to optimize productivity through a modern arrangement while also enhancing the structure’s environmental credentials. It is more than a granny flat, it amplifies suburban density by reducing the building footprint and maximizes the available outdoor space. Two thumbs up to the team!