The owner’s vision of an extended-family compound became a reality when he discovered five vacant acres originally zoned for condominiums in a developing suburban neighborhood.

The family members were skeptical until they met on the property and realized its potential. The original vision blossomed into two net-zero residences, housing eight people from four households as well as the owner’s business warehouse. Proper orientation was vital to meet net zero goals. Each home is tucked into the hilly landscape with an entire floor below grade on three sides. This design feature, combined with 2x6 walls filled completely with spray foam, allows for a very conservative use of mechanical heating and cooling. High efficiency HVAC systems, 125 solar panels and two solar water heaters help make this cumulative 7,000 square foot estate approach net zero.

Large windows allow abundant natural light during the daytime, even for the lower levels of each home. Over 1,500 square feet of spacious covered porches shade the ample windows and doors from harsh summer sun and welcome solar warmth in winter. Lush native trees make the communal patio area an inviting central outdoor feature. The site offers views to the east, south and west. The owners have an organic farm planned for the site.

Located at 3321 Davis Lane | 78748

Adam Stepan Design/Build
Adam Stepan

Sunergy, LLC
Ray Wilburn

Milgard Windows & Doors
Jim McBride

Austin Energy Program Participant
5-Star Austin Energy Green Building rating
Solar Photovoltaics (PV) Incentive

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