Next Project
Previous Project
House built on the ridge of hillside

00

7

The Ridge House

Original sketch of house built on the ridge of hillside
Project overview

Cut into a granite ridgeline above the Porongurup Range, this house doesn't sit on the land — it emerges from it. Board-formed concrete and rammed earth, coloured by the rock it was carved from.

Project
The Ridge House
Location
Porongurup Range, WA
Client
Catherine & David
Completion date
March 2026
project duration
22 Months
Status
Complete
Sector
Residential
Architect
Grounded
Ridge house floor plan
Walk way to house on side of hill
Living room with mountain view
Living room
Bedroom with mountain view
Bedroom
Bathroom with built in concrete bath.
Bathroom
The Design thinking

The site had one of the most commanding views in the South West — the Stirling Range filling the northern horizon from every point on the ridge. The temptation was to celebrate that view with glass and openness. We resisted it. The best architecture earns its views.

The Challenge

A ridgeline site is exposed — wind, heat, and the psychological weight of being perched above the valley. The challenge was to make a house that felt grounded, anchored to the ridge rather than balanced on top of it.

The Approach

We cut the building into the slope rather than building up from it. The rammed earth walls on the uphill side disappear into the ridge face. The concrete roof plane extends over the terrace, providing shade and compression before the view opens completely.

The Solution

Board-formed concrete and rammed earth in ochre and rust tones, read as extensions of the granite geology. A cantilevered terrace with a recessed plunge pool faces the Stirling Range. The building feels as old as the ridge it was cut from.

Sleek Kitchen with rammed earth walls and mountain views
View from veranda at sunset
Close up of packed earth wall in newly built house
Concept > Complete

Twenty-two months, remote site, limited access. The rammed earth used clay subsoil from the ridge excavation — the walls are made from the land cut away to build it. The cantilevered terrace needed serious engineering for its clean underside. The most complex element, and the one we're proudest of.

Client Perspective

“Working with the studio felt less like hiring an architect and more like finding someone who understood what we were trying to say, before we even knew how to say it.”

James + Sarah M.
Private Residential,
Yallingup WA
RECOGNITION
Award
New house over 200m²
2020
Houses / AIA
Contact us

Got a project in mind?
We’d love to hear about it.

Let's Talk