Extruded House

A concrete addition extends a Federation-era home’s pitched roof into a double-height living room facing the garden.
Concrete gabled addition opening towards the lawn and pool
Willem Rethmeier

A concrete addition extends a Federation-era home’s pitched roof into a double-height living room facing the garden.
Concrete gabled addition opening towards the lawn and pool
Willem Rethmeier

The project

Extruded House retains a Federation-era home in Neutral Bay and adds a large concrete volume behind it. The new work takes the outline of the existing pitched roof and carries it towards the garden, turning a familiar house profile into a double-height living space.

The junction between the two parts is legible inside. A timber-clad internal face marks the former rear wall, while the concrete roof and walls frame the new kitchen, dining and sitting areas. Full-height glazing opens the rear elevation to the lawn and pool.

Practice: MCK Architects
Year: 2018
Photographer: Willem Rethmeier
Project: House alteration and addition
Project area: 251 m²
Site area: 651 m²
Levels: Two
Structure: SDA Structures
Builder: Toki Construction

Dining and living spaces beside the timber-clad junction
Willem Rethmeier

The contrast is carried through the materials. Exposed concrete gives the addition its structure and mass, with timber joinery and floors providing warmer surfaces at the transition to the older rooms.

Environmental measures described in the supplied project account include the thermal mass of the concrete, shading at the rear glazing, a solar ventilator and rainwater collection. The house was completed in 2018 and photographed by Willem Rethmeier.