The house is designed to be operated and maintained efficiently and economically, over the long term. The open plan is filled with abundant amounts of natural light and durable, low-maintenance, easy-to-clean surfaces that enable the homeowner to perform everyday living tasks with a minimum of effort and a maximum of safety. Careful attention has been paid to the selection of materials based on energy consumption, durability, cost, weight, warmth and ease of cleaning and repair. 
