A slide, nets, a climbing wall, and a hidden entrance: it sounds like the description of a kid’s playground, but it’s actually the latest residential project by Austin Maynard Architects.

The Australian firm was hired to demolish an aging family house and replace it with their “forever home,” and did so with its usual flair for the unexpected.Union House is situated on a compact inner-city plot in Melbourne and incorporates some of the old house that was demolished.

The brick front-facing facade and adjoining side wall were retained. A large new CLT (cross-laminated timber) addition now forms the main structure of the home.The interior measures 285 sq m (roughly 3,000 sq ft) and consists of two main levels, plus a basement and roof deck with partially green roof, and contains four bedrooms and three bathrooms.

The first floor is arranged around an open plan living, dining, and kitchen area that opens onto the garden with large glass doors.