The tree haus is a two storey pavilion that shares an existing elevated deck with a family house on a bushy block.
The studio cabin comprises an open plan living/bedroom, a bathroom and a study. The study on the ground floor is connected to the upper floor via a spiral stair. The master bedroom becomes a living area during the day, much like a studio apartment. The main room fully opens up to the existing northern deck, capitalising on the northern sun.The Tree Haus was named not only because of its elevated position among the trees, but also due to its timber construction. The entire structure is made from blackbutt timber, which enables it to sit inconspicuously between the trees.The use of timber resulted in a lowered carbon footprint, and allows the occupants to feel as though they are living inside the tree canopy.Reducing the building scale through compact, spatially efficient design also played a large role in reducing the buildings carbon footprint. The Tree Haus is limited to three rooms and stands away from the main house without requiring any corridor or canopy to access it. Since it cantilevers outward from its base, its small footprint has limited impact on surrounding tree roots and subterranean water flow. Its proximity to the surrounding trees emphasises the site’s natural beauty without overwhelming these natural features.Other sustainability features includeCareful placement of the structure in respect to significant surrounding eucalyptus trees and existing structure.Double timber framed glazing.Deep northerly roof projection to protect the opening from summer sunlight while allowing winter sunlight to enter.Openings protected by SS flyscreens on the southern and eastern sides that will facilitate full cross ventilation.An external 5000L rainwater tank.AFS Chain of Custody Certified hardwood construction.Low VOC timber treatment.Fully insulated envelope including floors.Connectivity to nature.
A matrix of blackbutt vertical and horizontal members forms the structural basis for the Tree Haus. The extensive use of timber was chosen for aesthetic, functional, and sustainability purposes.
Timber desk pods, and bay window seating was designed to protrude from the main structure, cantilevering out above the ground, increasing the feeling of being nestled in the trees.
The thin roof profile is made from steel channels that have been extruded beyond the building. The channels direct water down to the lower gutter, while maintaing a thin profile roof. Internally a ceiling has been placed below the roof with insulation between.
The lower floor joists and floorboards have been left exposed, furthering the idea of being surrounding by timber.
The external cladding and all primary, secondary and tertiary structural timber in the floors, walls, and roof of the development are solid blackbutt supplied by Boral with Australian Forestry Standard chain of custody certification.
The plywood interior lining, supplied by Briggs Veneers, is Forest Stewardship Council. The timbers were selectively logged from forestry that is managed for its long-term sustainability.
Growing timber sequesters carbon dioxide from the atmosphere, and thus it can be fairly deemed as being a low carbon or carbon positive building material.
The blackbutt cladding boards were laid both vertically and horizontally to compliment the different building elements in the project.
Custom cedar and rosewood doors were specified for the project.