Grounded – Architecture That Belongs
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House hidden in a dense forest surrounding.

Karri Valley Retreat

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Original sketch of house in forest
Project overview

A retreat built into the floor of an ancient karri forest. The trunks frame every window, the canopy filters every ray of light, and the boundary between inside and outside is deliberately unclear.

Project
Karri Valley Retreat
Location
Pemberton, WA
Client
The Nguyen Family
Completion date
October 2025
project duration
20 Months
Status
Complete
Sector
Residential
Architect
Grounded
Floor plan for project
Wide angle view of house almost disappearing into the forest.
Living room with forest views and log burner
Living room
view of the tree canopy from the house deck
View from the deck
Warm wood kitchen with forest views
Kitchen
The Design thinking

Karri trees can live for three hundred years. Building in a karri forest is an act that requires humility — the trees were here long before and will be here long after. We designed accordingly.

The Challenge

The forest set the rules. No tree could be removed, no root system damaged, no sight line interrupted. The plan was determined by the trees, not by us.

The Approach

We mapped every trunk within thirty metres of the footprint and used those positions as the planning grid. The plan reads as glazed pavilions connected by walkways, positioned in the gaps between trees, elevated above the forest floor.

The Solution

Raw karri timber, blackened steel, and full-height glazing on all forest-facing sides. From inside, the karri trunks are part of every room. At dusk, warm light reflects off pale bark and the boundary between inside and outside dissolves. A building that belongs to the forest.

Bathroom with forest view through big windows
Close up of tree bark from surrounding forest that was used to build the house.
Wide angle of house in the trees at sunset with warm lights, lighting up the house
Concept > Complete

Twenty months including six weeks on site establishing the tree protection zones before any earthworks began. Every post was hand-dug to avoid root damage. The elevated walkways were assembled from pre-fabricated sections to minimise ground disturbance. The karri timber used throughout the interior was salvaged from a fallen tree on the property — milled on site and dried for four months before installation.

Placeholder image that doesn't show on live site.
Placeholder image that doesn't show on live site.
Placeholder image that doesn't show on live site.
Client Perspective

“We bought the land because of the trees. We were terrified a building would ruin what we loved about it. Grounded were the first people who understood that the trees were the project.”

Family stood amongst trees next to huge forest tree.
The Nguyen Family
Home Owners
Pemberton WA
RECOGNITION
Featured
Living well
2023
Monocle
Featured
Architecture & design
2025
Wallpaper*
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