It’s time to learn about timber house design. In the timber boxes and double storey house looks, this is the best result of the house extension which is also getting a lot of additions to the old part of the house, giving a new concept of an open house plan that blurs indoor and outdoor connection. It’s very interesting, where the role of the transparent divisions of bifold doors and large windows give a reciprocal interaction between the external and internal. The openable window extensively and bifold doors setting allow abundant natural light and cross ventilation, thus saving electrical energy especially on heating / cooling systems. The Barrow house situated in Melbourne, Australia designed by Andrew Maynard Architects (www.maynardarchitects.com), creating more intimacy on the environment and architecture design by providing a natural aspect of the external timber cladding, besides using the materials reused from the previous parts of the house and recycled or found elements, reducing the carbon footprint of the design and also adds character to the room which strengthen the image of eco-friendly.