Portsea House is a concrete retreat located in Portsea, Australia, designed in 2017 by Wood Marsh.

Description
In contrast to the prevailing aesthetic of its location, this house is a discrete, contemporary insertion in a leafy pocket of Portsea. As much an entertainer as a retreat, it is divided into two contrasting areas, distinguished by light and dark, openness and containment.
Anchoring the form to the site is a curved, rammed-earth, blade wall, which wraps like a scroll across the site. Its mass acts as a thermal regulator and balances the upper level as it cantilevers out from the slope. Formally it creates privacy from the street, a key factor of the brief, and is reinforced by the structure?s discrete siting and use of dark timber weatherboard cladding. Indigenous landscaping further frames and filters the view of the building and this interaction between the natural environment and the built form continues as a central theme throughout.
Beyond the blade wall, the eye is drawn around the curved walls, the form softened by the absence of edges. The external spaces encourage interaction between built form and site while maintaining a distinction in form and accentuating the contrast between the formalist architecture and the naturalist landscape.
Upon entering the front door through the monolithic blade wall a grand staircase winds up to the open living space above. The full-height glazed rear facade allows the landscaping beyond to act as the...