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.

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.


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.


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.


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.


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.



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
- Project: Extension and renovation of an 1890 sandstone cottage, Prospect, South Australia
- Architect, interior design and builder: Glasshouse Projects
- Engineer: MQZ Consulting Engineers
- Landscaping: Yardstick Landscape Services
- Furniture: BoConcept
- Photography: Art Department Creative
- Photography styling: Art Department Styling
- Source: Contemporist