Waratah Secondary House

Designed by Newcastle-based Anthrosite Architects, this project is an exercise in affordable housing.

Waratah Secondary house is shaped by simple underlying principles; minimise costs through maximum efficiency.

The use of high performance, prefabricated materials create the simple, box form expediting construction times and keeping costs low.

Due to flood mitigation controls, the primary living level is elevated 1.2m above natural ground.

Hard and soft landscaping including stairs, decks and earth mounding are introduced.

These outdoor connections provide inhabitants with distinct zones that are simultaneously open and separate.

Anthrosite Architect’s 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.

A simple, low maintenance building form was selected for efficiency with on-site finishing kept to a minimum.

Construction consisted of a masonry base (flood resisting), with prefabricated, modular components, including:

  • structurally insulated wall and roof panels
  • pre-finished fibre cement sheet panels
  • metal mesh fencing panels
  • modular joinery

All of these materials were specified as a means of minimising on-site waste through off site prefabrication.

With budget limitations, anthrosite prioritised the physical experience over technology.

Their priority was not on energy saving by means of integrated building systems; they 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.

More than a granny flat, Secondary House increases suburban density through spatially efficient planning reducing the building footprint to maximise the available outdoor space.

Project Details

Project Size – 60 m2
Site Area – 200 m2
Project Budget – $350,000
Completion Date – 2018
Building Levels – 3

Project Team

Architecture

Anthrosite Architects

Anthrosite Architects are a Newcastle based design practice co-founded in 2010 by Mark Spence and Dana Hutchinson.

www.anthrosite.com.au

Photography

Christopher Frederick Jones

Christopher is an experienced architectural and interiors photographer based in Brisbane, Australia.

www.cfjphoto.com.au

Photo Gallery

Click on a thumbnail image to enlarge.

Design © 2021 Anthrosite Architects. All Rights Reserved.| Images © 2021 Christopher Frederick Jones. All Rights Reserved.

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