Collective Expansion – House Mitchell by Those Architects

A former cobbler’s workshop, House Mitchell undergoes an internal transformation by Those Architects to embed it with a new, contemporary spirit. Given the inherent charm of the site, Those Architects employed an approach centred on efficiency and an overarching sense of openness.

To address the limited space on site, the architect opted to vertically expand the existing layout of the home. “With the roof and attic space opened up,” says Ben Mitchell, co-founder and director of Those Architects, “the whole interior benefits from extra light and the stack effect, drawing fresh air up through the levels naturally.” The transformation of the form not only enhanced the internal floor area but also provided improved views of Sydney Harbour. Guided by a focus on maximising natural light, fresh air and adaptable spaces, the redesign of House Mitchell openly facilitates a dialogue with the natural surroundings.

Guided by a focus on maximising natural light, fresh air and adaptable spaces, the redesign of House Mitchell openly facilitates a dialogue with the natural surroundings.

The overall floor area increased from 110 to 175 square metres, retaining the original ground-level floor plan. The retreat areas also maintain the rich, dark tones of the original cottage, while gathering spaces adopt a lighter palette. Emphasising strategic engineering for the home’s functions, flexibility in spaces was a key consideration. Despite the expansion, council regulations meant the existing roof line had to remain, resulting in the integration of new usable space beneath it.

The creation of a rooftop terrace connected to the expanded main bedroom and ensuite was important for the overall residence. Having a private and elevated space outside is a valuable asset in Sydney, and the enhanced views contribute to the city’s renowned outdoor lifestyle. “The home and the area are a really calming space to live in,” says Ben, “and the entire home, as an ensemble, is quite unique – with many aspects contributing to the overall experience.” By concealing amenities behind sliding doors and integrating storage into the joinery, the removal of visual elements creates an illusion of even greater interior volume.

“The home and the area are a really calming space to live in,” says Ben, “and the entire home, as an ensemble, is quite unique – with many aspects contributing to the overall experience.”

The modest cottage that was once House Mitchell has evolved into a modern, light-filled home. Through vertical expansion and a thoughtful allocation of interior spaces, Those Architects has nearly doubled the usable floor area without disrupting the existing form.