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CO-AP Renovated and Extended a Typical Suburban Home in Sydney


Sydney architecture studio CO-AP has renovated and extended a typical suburban home in the Australian city, adding a two-storey concrete structure that opens onto a garden at the rear.

This project is an alteration and additions to an early 1900s two bedroom single-storey semi-detached house. Our client, a builder/developer, approached us with an existing planning approval for the property and engaged us to complete the detail design and interiors for the project. Maximizing daylight and green space were a priority. Off-form concrete and Australian timbers were used for the two-storey rear additions which are contained within the existing ridgeline set out in the original planning approval.

A series of skylights allow daylight to flood the upper floor bedrooms and penetrate deep into the original house via a new stairwell. Structural timbers salvaged from the original building were repurposed as stair treads and shelving.

Although there was an opportunity for rear lane access to potential off-street parking, our client opted to invest in improving the existing garden as they felt landscaping was more a valuable asset than car spaces in the inner city. This was a brave risk to take for a speculative project in Balmain, and it has paid off.

An elevated planter filled with succulents provide privacy and a verdant outlook from the upper floor rear bedroom. The palette of interior finishes has been kept crisp, fresh and simple – incorporating concrete, timber, terracotta and stone.

Original planning approval by Nick Bell D&A.
Built by Ballast Point. Property styling by The Hired Home.
Photography © 2017 Murray Fredericks. All rights reserved.