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The clients purchased this property with a one bedroom dwelling and a number of existing farm buildings (in various states of disrepair). They live in nearby Christchurch and visit the property most weekends - often with extended family coming to stay. As such they needed a solution to house additional guests.

They enjoy the time spent in Wainui. It is a simple, ‘off-grid’ – back to nature offering, so any architectural addition was to be sympathetic in scale and not detract from this experience.

When they bought the property a favourite part of the site was the former cowshed and yard at the centre of a clearing.

As such, this became central to the new build. The existing concrete perimeter walls of the cowshed act as a ‘boundary’ for the new architectural intervention. Also informing the design was the manger-like roof structure which sailed over the form. This roof was in a state of disrepair – however the design aimed to ‘rebuild’ using the same principles and simple structure. A series of steel posts support a mono-pitch roof which sails over the existing concrete remains, new cabin and reconditioned wet room below.

The new building is a small form clad in Zincalume panels and timber lined which tucks under the awning roof. Housed within are three near identical rooms which are flexible in nature – but primarily to be used as bedrooms. A double bedroom at either end of the form – flanking a central bunkroom with custom joinery. The former cowshed had existing wet room facilities which were also reconditioned as part of this project. As the awning roof was raised the section of wall above the existing datum was filled with polycarbonate panels. This acted to bring diffused light into the spaces and at night acted as a lantern.

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Johnstone Callaghan Architects
Canterbury
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Johnstone Callaghan Architects is an award-winning studio based in Ōtautahi Christchurch and working across Aotearoa New Zealand.

The design led studio, formed in 2019 by Prue Johnstone and Mike Callaghan, has since expanded to a small team of architects and designers who specialise in, and are passionate about creating residential and commercial spaces with functionality and detail in mind.

Every project is an opportunity to design simple, considered spaces to be enjoyed, celebrated, and lived in for generations beyond our own. Our aim is to deliver responsive architecture to great clients and have fun doing it.

Johnstone Callaghan Architects have received an impressive array of local and national architecture and design awards since their inception from Te Kāhui Whaihanga NZ Institute of Architects, Designers Institute of New Zealand ‘Best Awards’ and the national ‘Interior Awards’ programme.

Johnstone Callaghan Architects have also been published in a book ‘Small Holiday Homes’, and architecture magazines including ‘Here’ and ‘Green Magazine’ in Australia.

Find more information about Johnstone Callaghan Architects here.

Johnstone Callaghan Architects is a Te Kāhui Whaihanga NZ Institute of Architects Registered Practice.