Narrative:
Specific variations from the regional climatic conditions were studied incorporating an understanding of the microclimate into the regional design strategies. These included proper orientation, natural light and ventilation, and regional materials. We also used global technologies such as solar panels for energy generation, in-floor heating and sustainable building materials, which allowed the resultant building to be virtually energy neutral.
The existing 1200 square foot structure, built in 1963, was partially retained and remodeled despite being considered a "tear down." Even though the completed structure is more than three times its original size the net increase in lot coverage is less than 800 square feet.
The project also has green roofs, it’s own stormwater retention system, and retains 95% of roof stormwater on site, virtually unheard of for a project in the area. While most structures in the area cover as much as 90% of the site with non-permeable surfaces this project maintains over 50% of the site unpaved or landscaped, dramatically reducing heat island effects and runoff.
Permeable gravel is used in most places, including the driveway, which would normally be covered with non-permeable surfaces. All landscaping is drought-tolerant native planting that requires little or no maintenance. The project has a green roof and artificial lawn that requires no water and little maintenance. Much of the planting was selected to attract an unusually high concentration of hummingbirds. The site also includes a vegetable and herb garden: composting and vegetable gardening was included as an integral part of the landscape design.
Land Use & Ecology
source: http://www.aiatopten.org