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Twinkling terrace: PerfPad

Through a series of simple but effective alterations Northbourne Architecture and Design has transformed an existing terrace house into a more functional, light-filled home with a luminous street presence.

Northbourne Architecture and Design’s first completed architectural project sits comfortably nestled in a row of terrace houses down one of South Yarra’s narrow streets. While its white facade glows brightly among more subdued houses, its scale and form ground it comfortably within the existing streetscape. The building volume is very much in keeping with the character of the street, with expressed horizontal lines that tie it in with the datum lines of its neighbours. Although the scale and form are contextual, materially the house departs from the sombre and muted streetscape palette. Clad in bright white powdercoated aluminium sheets perforated with regularly spaced round holes, the facade presents as a crisp, minimal, all-white box. Compared to its neighbours, it’s quite abstracted as a form, with little to reference the human scale. The only aberration to the rational, geometric all-white design is the existing tree in the front garden. This organic, snaking green form acts as a counter to the rectilinear, pure white facade and is almost as essential to the facade composition as the architecture itself. Both the tree and the architecture seek to highlight the features of the other through contrast, and together they give one another balance.

One would be forgiven for assuming that the project is a new build, given its contemporary, minimalist facade, but in fact it’s a renovation of an existing dwelling. The aluminium screens clad a pre-existing house. With the exception of increasing the first-floor building envelope by one metre, the building footprint is more or less as it was. The “before” and “after” plans make it obvious that the degree of intervention was fairly minimal and that much of the original structure remains intact.

A row of joinery separates the living space from the entry, a laundry and a powder room.

A row of joinery separates the living space from the entry, a laundry and a powder room.

Image: Tatjana Plitt

The ground floor was essentially massaged through the addition of a row of joinery that separates the main living area from the entry, plus a new laundry and powder room. Other than that, little has changed in the plan. The kitchen, which has always been the hub of the house, remains centrally located on the ground floor with open space either side. The first floor, which has been extended with the additional metre toward the front, has had some slightly more extensive internal changes to accommodate an additional bedroom upstairs. However, the two rear bedrooms have changed little.

Although the plans reveal fairly limited intervention, the quality and feel of the internal spaces have been completely transformed. This is partly due to the updated joinery and finishes, which change the look of the house and add more functional storage. However, it’s the simple spatial massaging that fundamentally changes the bones of the dwelling and gives it new life. New full-height glazing has been introduced to both ends of the open living area on the ground floor, providing vastly more light than the former heavy timber-framed French doors. A timber deck has been added to the front of the house, which has been significantly raised above the natural ground level to finish flush with the internal floor. Given the fence height, this courtyard is protected from the street and makes for a highly useable private outdoor space. This new outdoor room extends the perceived length of the living space and offers a much more successful indoor–outdoor experience, transforming the daily use of the living area. The continuous line of kitchen joinery extending to an external barbecue unit also helps drive that visual flow and connection. The new joinery unit opposite this houses the television unit and additional storage. More importantly, it acts as a dividing element to create the separated entry, which is now hidden behind a concealed pivot door in the joinery. This new entry made it possible for the owners to use one of the bedrooms upstairs as a consultancy room. With an enclosed entry, the owner’s patients can now access the consultancy room without any visual connection to the private family living zone.

A fireplace and hydronic heating provide warmth in winter, in a house that enjoys minimal temperature fluctuations.

A fireplace and hydronic heating provide warmth in winter, in a house that enjoys minimal temperature fluctuations.

Image: Tatjana Plitt

Upstairs, other than the additional bedroom, it’s the main bedroom that has undergone the most radical transformation. The original bedroom turned its back on the street and suffered from a lack of daylight. In contrast, the new main bedroom reorients the bed toward the windows. Facing onto the only new external wall in the project, full-height glazing opens up to an outdoor terrace, inviting fresh daylight to stream in, filtered and reflected off the perforated screens. The bedroom and ensuite hang in the canopy of the existing tree and this greenery both enriches the outlook and provides privacy screening and shading to the main bedroom.

The alterations to this existing terrace are highly efficient. Maximum impact has been achieved through small but clever and strategic interventions.

Products and materials

Roofing
Zincalume deck roofing; Bradford R7 ceiling insulation batts.
External walls
Dulux AcraTex RenderWall in Dulux ‘White’.
Windows
Viridian double-glazed windows; Max Industries frames, powdercoated; Plantation shutters, roller blockout blind, and translucent roller blind in ‘White’ from AP Shutters and Blinds; Centor retractable flyscreen.
Doors
Custom pivot doors in ‘White’ from Tait Timber and Hardware; Designer Doorware hardware.
Flooring
Havwoods oak engineered timber flooring; Kirriwirri rug from Designer Rugs.
Lighting
LAAL Conehome arch pendant; Masson adjustable LED downlights; Moda Piera Arancini floor and table lamps.
Kitchen
Abey Gessi kitchen mixer; InSinkErator hot water dispenser; Maximum porcelain tile benchtop; custom birch plywood, white washed and limed; Bosch oven and steam oven; Miele cooktop and dishwasher; Whispair rangehood; Liebherr fridge; Häfele fully concealed pull-out bins.
Bathroom
Reece tapware; Omvivo basins and vanity (ensuite); Ikea basins and vanity (bathroom); Reece basin (powder room); De Fazio Tiles and Stone wall tiles in ‘White’ and floor tiles in ‘Grey’.
Heating and cooling
Hydrotherm hydronic heating wall panels; Jetmaster fireplace.
External elements
Tait Timber and Hardware tallowwood deck; Perftech custom perforated aluminium sheeting, powdercoated; water-resistant joinery in automative paint; Beefeater barbecue.
Other
LAAL Samesame stools with steel, terrazzo and marble tops; LAAL tipsy bowl; Grazia and Co Leeroy sofa, Featherston Scape armchair and Featherston e254 Elastic Suspension chair; side table from Cult.

Credits

Architect
Northbourne Architecture and Design
Melbourne, Vic, Australia
Project Team
Sally Holbrook, Lydia Hnatojko
Consultants
Builder S & S Builders
Engineer Acor Kersulting
Site details
Location Melbourne,  Vic,  Australia
Site type Suburban
Site area 164 m2
Building area 210 m2
Category Residential buildings
Type Alts and adds, Houses, Residential
Project Details
Status Built
Design, documentation 22 months
Construction 12 months

Source

Project

Published online: 23 May 2018
Words: Ella Leoncio
Images: Tatjana Plitt

Issue

Houses, February 2018

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