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A Mid-Century Modern Inspired Extension For An 1890s Sandstone Cottage

Edited by Oliver Bennett
Extension by Glasshouse Projects to an 1890 sandstone cottage in Prospect, South Australia, with a pool

Glasshouse Projects, a firm that works as architect, interior designer and builder, has completed a renovation and a mid-century modern inspired extension for an original 1890 sandstone cottage in Prospect, South Australia.

Extension by Glasshouse Projects to an 1890 sandstone cottage in Prospect, South Australia, with a pool
Photography by Art Department Creative

Old cottage, new rooms

The extension can be reached through the front door of the cottage or by a side door off the driveway. Together, the new work and the renovation of the older part of the house added a master bedroom with ensuite, a dining room, kitchen, butler's pantry, laundry, powder room, guest bathroom, study, pool and an outdoor living area.

Original 1890s sandstone cottage seen from the street
Photography by Art Department Creative
Front door of the cottage, one of two ways into the extension
Photography by Art Department Creative

Glass box, garden and pool

The main addition is a structured, glass-walled box that appears to float. Next to it are a sunken garden, a patio and a rectangular pool. A stone wall lines a path that includes an outdoor kitchen with a barbecue, and the same path leads to the kitchen indoors.

A glass-walled box that appears to float, beside a sunken garden, patio and rectangular pool
Photography by Art Department Creative
Stone wall along a path with an outdoor kitchen and barbecue
Photography by Art Department Creative

The kitchen has wood cabinets, a splashback of Japanese ceramic tiles laid vertically, and a minimalist stone island. An open-plan dining area sits between the kitchen and the living room, and sliding glass doors 3m (9-foot) tall connect the rooms with the outdoor spaces.

Kitchen with wood cabinets, vertical Japanese ceramic tile splashback and a stone island
Photography by Art Department Creative
Open-plan dining area with tall sliding glass doors to the garden
Photography by Art Department Creative

Living room, study and private rooms

A stone fireplace is the focal point of the living room. Open joinery crosses the space to divide the study from the living area, so the owners can work privately while still feeling part of the house. A skylight and oversized framing bring daylight into both.

Living room with a stone fireplace and open joinery dividing it from the study
Photography by Art Department Creative
Open shelving under a skylight between the living room and home office
Photography by Art Department Creative

The bedroom is minimal, with neutral furnishings and colours. In the ensuite, tiled walls surround a bathtub set under a skylight, and a wall of wood slats with storage below adds warmth. In the powder room, a skylight lights up floor-to-ceiling wood walls.

Minimalist bedroom with neutral furnishings
Photography by Art Department Creative
Ensuite bathroom with a bathtub under a skylight and a wall of wood slats
Photography by Art Department Creative
Powder room with floor-to-ceiling wood walls lit by a skylight
Photography by Art Department Creative

As a general point, a light, glazed addition placed behind a heavy masonry cottage lets both parts keep their own character, while skylights bring daylight deep into the new rooms.

Project credits

Oliver Bennett is an editorial pen name used by the ADC News team. Original author, project and photography credits are retained within the article.