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Hiding in plain sight: Macmasters Beach House

Replacing a 1940s weatherboard cottage, this pragmatic new beach house by Polly Harbison Design responds sensitively to its environment while resisting the temptation to hide.

Macmasters Beach House by Polly Harbison Design plays a game of stealth. In a secluded pocket of the New South Wales Central Coast, it hides in plain sight above a sand dune – a concrete bunker sheathed in silvering hardwood and screened from the street by a grove of banksias.

The house replaces a 1940s weatherboard cottage on a steep beachfront site, bordered by two neighbours, a bushfire flame zone and a sand dune along its eastern boundary. Its owners had occupied the old cottage for two years before it partially collapsed in a storm. Implicit in their brief to architect Polly Harbison was the idea that its replacement should be of monumental strength, with modest detailing. “A robust and pragmatic beach house: comfortable but not fussy,” explains Polly.

“Our challenge was designing a holiday house large enough for a big family, without dramatically increasing the original footprint (we jumped from fifty square metres to nearly three hundred). We also wanted to retain as much landscape as possible and actually increase it. So our strategy was to make the house a distinct object within the bush and use circular retaining walls to ‘scoop’ into the site.”

The terraces of the middle level provide ample space for the large family to congregate.

The terraces of the middle level provide ample space for the large family to congregate.

Image: Brett Boardman

This resulted in a slim rectangular tower on the old building line, circumscribed by two elliptical landscape walls – one along the western terrace, the other around a parking bay. The tower is distinct but not obtrusive. Much of its floor area is excavated into the hillside, allowing the architect three storeys instead of two, so the increased program occupies a far smaller footprint than is permissible. It also results in a tightly resolved floor plan: top floor for adults, middle level for communal gathering and the kids’ domain on the lower ground level – “the land of wet towels and kids, friends and surfboards,” as Polly calls it.

This downstairs zone of two bedrooms, a bathroom, rumpus, laundry and storage space opens out to a small lawn, where the old driveway once terminated. In re-sculpting the site, the garage was dispensed with and cars cordoned off near street level, encircled by a low retaining wall, allowing garden and bush to reinhabit the space between the house and beach.

Cars have been kept near street level, giving the space between the house and beach over to the bush.

Cars have been kept near street level, giving the space between the house and beach over to the bush.

Image: Brett Boardman

From the beach, only the top storey is visible. Behind tinted glass, its private sanctuary is occupied by a main bedroom and guest suite facing squarely out to sea. The communal centre below combines the kitchen, dining and living room, adjoining two outdoor terraces, one in front of and one behind the living room. Three-metre-high sliding glass doors open the interior up to these terraces. It’s designed for high winds so that even with the doors closed, it’s possible to sit outside on the western terrace and see the ocean through the prism of the living room.

“It’s not a huge room, but the view is epic and the building is hard, so we wanted to dial that down with some comfort,” says Polly, explaining the hierarchy of finishes through the house, which privileges the communal space. Sheer white curtains, sandstone flooring (as warm as limestone underfoot), a cast-iron fireplace and thick hardwood frames around the sliding doors set this level apart.

For economy’s sake, aluminium window frames were used on both the top and lower ground levels, but skilfully rebated into the thick concrete walls. The top level is carpeted with sisal, while “kids’ world” is low-maintenance and raw, with concrete floors and the barest joinery essentials. Its open-air entry, just a few steps in from the outdoor shower, is permanently draped in drying swimmers and wetsuits, and towels and toys and thongs.

Michael Cooke’s landscaping holds the bush and beach together, mixing natives and exotic plantings. Rough and smooth concrete steps, and elements of aggregate and hardwood, make subtle distinctions between the private domain immediately surrounding the house and the more public domain toward the site edges. In time these will fade and be overrun with creepers and grasses, dissolving back into the dune.

This is a pragmatic house. It is as beautiful as it is blunt, in a way that perfectly matches the setting. While the old cottage was very much of the local vernacular, this is clearly not. Polly’s archi-crush is for the “fat walls and rough textures” of Swiss practice Wespi de Meuron Romeo Architects and its fetishized alpine chalets. This influence is evident in the way Polly has carved the concrete shell to crop and control views, rather than revealing the views all at once, and in the texture of the living space’s off-form concrete ceiling.

“I love the timber texture of this ceiling. The builders hadn’t done it before, but were really excited by the challenge. When the forming boards came down, they re-used them to line the downstairs ceiling,” says Polly. “They were quite resourceful like that. They built quite a lot of the joinery and hardware details – like handles and hooks and benches for the wardrobes – using salvaged timbers from the old cottage. So in a way it lives on.”

Products and materials

Lysaght Klip- Lok in Colorbond ‘Woodland Grey’
External walls
Board and batten turpentine cladding; rendered blockwork, natural cement render; off-form concrete with clear penetrating sealer
Internal walls
Rendered blockwork, natural cement render; render in Resene ‘Double Sea Fog’
Aneeta sashless double-hung windows in dark bronze anodized aluminium
Bakers Joinery hardwood sliding doors in ‘Sikkens’; Sublime Aluminium doors in dark bronze anodized aluminium; hardware from Architectural Door Hardware; Cowdroy bottom rollers and guides
Beauford sandstone stone tiles from Eco Outdoor; off-form concrete with clear sealant; International Floorcoverings sisal carpet; blackbutt timber stairs
Tovo Lighting Kingston downlights, Wedgie wall lights and outdoor Panorama Noosa
Fisher and Paykel French door fridge; Ilve freestanding oven/cooktop; Panasonic microwave; Miele dishwasher
Sussex Scala tapware in ‘Satin Chrome’ from Reece; Caroma vanity basins
Heating and cooling
Cheminees Philippe fireplace; Solis Products blinds; Hunter Pacific ceiling fans
External elements
Ogis Engineering brass balustrade
MCM House sofas


Polly Harbison Design
Project Team
Polly Harbison, Robyn Jones, Jennifer McMaster
Builder Paterson Builders
Engineer Tihanyi Consulting Engineers
Landscaping Michael Cooke Garden Design
Site details
Site type Coastal
Site area 991 m2
Building area 290 m2
Category Residential buildings
Project Details
Status Built
Completion date 2016
Design, documentation 12 months
Construction 16 months



Published online: 6 Nov 2017
Words: Peter Salhani
Images: Brett Boardman


Houses, August 2017

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