Five Gardens House

Five Gardens House

Architect
David Boyle Architect
Location
Northbridge, Sydney, NSW, Australia | View Map
Project Year
2018
Category
Housing
Brett Boardman Photography

Five Gardens House

David Boyle Architect as Architects

Perched on a headland in Middle Harbour, between The Knoll, a remanent bush outcrop, and a spectacular eucalypt within the back yard, Five Gardens House establishes landscape as a form and spatial generator for the alterations to a 1950’s suburban modernist house. Arched ceilings float above a projecting concrete entry roof as if the volume of the rock outcrops in the adjacent bushland have permeated into the building form. Horizontal projections, supported on branch-like steel posts, over 3 levels reach out into the landscape and wrap around the eucalypt in the rear yard.


New work is joyously stitched into the existing building fabric to create open plan living spaces and omnipresent connections to gardens on all levels. Three existing gardens have been retained and replanted, including a sunken entry garden, a walled kitchen garden and a large sloping bush garden in the back yard. A fourth rooftop garden on the middle level has been created by the addition of a third level at the base of the building. The arched windows on the upper level provide aspect up to the fifth garden, The Knoll, and by doing so allows for this landscape to be subconsciously claimed.


A large concrete awning is constructed over the existing garage and extended towards the street to form an entry forecourt and additional parking. The structure extends along an elevated bridge and returns around the sunken entry garden to form the roof for a new living room balcony, entry and bathroom. Above this a new skillion roof line follows the slope of the land and forms the ceiling for the open plan living, dining and kitchen spaces. These are spatially divided by the 3 arched ceilings with southern windows up to The Knoll. Small recessed balconies are replaced with a projecting covered balcony with external spiral stair connecting down to the rooftop garden.


An existing stair provides access down to the mid-level where a new library opens directly to the roof garden. A new master bedroom suite also connects to the roof garden along with an extruded elevated balcony bending around the eucalypt. The balcony is supported by a thin self-bracing bent steel post structure in a trapezoidal form to minimise disturbance to the tree roots. A screen wall, pebble roof and pergola provide dappled light under the eucalypt.


A new lower level provides new bedrooms and bathroom for teenage boys and direct access to the back garden and pool. The external stair along the eastern boundary is extended down to the rear yard and provides external access from the kitchen garden to the roof rear gardens. The internal and external stairs create a spiral circulation system connecting all levels and gardens.


Subtle shifts in geometry yield to the prevailing aspect over Sailors Bay. Raw, robust materials and expressionistic structure invite an emotive response and embed the building into the landscape setting.


Material Used:

1. James Hardies, Facade Cladding, Hardieflex

2. Facade Cladding, Rough Sawn Hardwood Board And Batten

3. Eco Outdoor, Paving, Porphry Crazy Paving

4. AEG, Kitchen Appliances, Oven, Cooktop

5. Smartstone, Kitchen Benchtop, Santorini Absolute Blanc

6. Astra Walker, Batroom Taps And Accessories

Project Credits
Product Spec Sheet

ElementBrand
ManufacturersAEG HAUSTECHNIK
Batroom Taps And AccessoriesAstra Walker
Kitchen Benchtop, Santorini Absolute BlancSmartstone
Product Spec Sheet
Manufacturers
Batroom Taps And Accessories
Kitchen Benchtop, Santorini Absolute Blanc
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