I have been interested in sustainable architecture since the energy crisis of the late 1970s. Back in the day, nobody used the word sustainability, but it was the direction that Bob Schubert of Virginia Tech’s College of Architecture was guiding his students. Recognizing that the earth is a finite system, the practice of responsible utilization of resources was simply a no-brainer. When the words “green building” and “sustainability” became buzzwords in the 1990s, I thought of what Bob was preaching some twenty years earlier.
Fast forward about 35 years, and an old friend approached me about designing a house for her. I jumped at the opportunity, because we share similar views on stewardship of natural resources and the environment. We talked off and on for a couple of years until she was able to find the perfect piece of land on which to site the house. The land slopes almost due south which is an ideal setup for passive solar design. By coincidence, this is also the direction of the best views, so the house took on biophilic characteristics before we laid down the first line, connecting the owner with nature.
During our conversations, we talked about utilizing a small building footprint of approximately 1,200 square feet. As a matter of resource conservation, I typically design around a 4’ x 4’ module (6 bricks, 3 concrete blocks, 3 joist spaces @16”, and half a sheet of plywood) to optimize the use of materials with minimal waste. This house grew out of that paradigm. As a result the footprint is exactly 1,200 square feet.
The house has south facing glass with appropriately positioned overhangs to keep the summer sun off the glass, but admit the winter sun when the solar gain reduces run time of the HVAC system. Additionally, there is an operable clerestory that combined with low operable windows in the great room creates a chimney effect which keeps the house more comfortable in warmer weather without resorting to air conditioning on all but the hottest days. The clerestory floods the house with light which elevates the mood of anyone occupying the space.
At a more personable level, the walls at the entrance are painted a contrasting color to draw attention to the entrance, since the front door is perpendicular to the street. Because the public spaces face south, the more private areas by default need to face the north, which happens to face the street. Again, this was ideal, because of the symbiotic need for smaller glass areas due to the function and orientation of the spaces.
The functionality of the design resulted in a prairie style house nestled into a hillside in central Virginia. When viewed from the north, the horizontal lines suggest a symbiotic relationship with the Earth and that the house is of the site not on it.
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