The concept for this significant renovation was to carve out areas of the house to create a series of new spaces focused around daylight and views, with the main design elements being cast in with exposed structural concrete and solid oak. A large light well forms the new core of the house. Within it a 7m high freestanding concrete blade wall carries an open tread oak stair on one side and on the other side about a hundred of threaded sockets cast in for making a climbing wall. The rear extension is a simple composition of two exposed concrete volumes covered with a sedum green roof. The lower volume extends the kitchen area as a cantilevered, curved and stepped window bay with a wrapping timber bench/worktop along the inside. It is a place for cooking, lounging and playing and its form is the result of maximizing the orientation for morning sunlight. The volume hovers above a shallow framed pond, which is filled by rainwater draining off the rear section of the house. The higher volume is an extension of the common area and defines the dining area. A massive timber framed door swings open into the rear garden.