magnolia residence: a green case study
Seattle, WA
Certification goals:
LEED® for Homes Gold
ENERGY STAR® Home Environments for Living
This four-bedroom, classically designed stucco home is located on a bluff above Elliot Bay in the Magnolia neighborhood of Seattle. Each room is designed to enjoy the sweeping views of the Seattle skyline, Mt Rainier, and the Olympics. Our clients came to us with the goal of designing a multi-generational, sustainably designed home that conserves energy, limits water usage, and is healthy to live in. From the inception of the design process, the goal has been to push the envelope of green technologies while not letting the green features dictate the home's aesthetic.
In meeting the requirements of LEED for Homes, Built Green, and ENERGY STAR, this home highlights products and systems relating to all aspects of green building. The following is a list of just some of the home's many green features.
- Geothermal heat pump ground loop system for heating and cooling
- Radiant floor heating
- Building-Integrated photovoltaic (BIPV) integrated solar energy roof tiles
- Three wind turbines on the bluff generate energy from wind
- 40% increase in insulation values over International Residential Code
- On-demand hot water systems
- High efficiency windows and doors with U-values of .25
- Advanced framing techniques to allow thicker insulation
- ENERGY STAR rated appliances
- Compact fluorescent and LED lighting throughout
- Heat recovery ventilator to reduce heating costs
- Rainwater harvesting from roof drains to a 5,000 gallon cistern
- Gray water recycling for flushing toilets
- Drip irrigation system with sensors to reduce water use by up to 40%
- Drought tolerant landscaping with no lawn
- Pervious paving on the driveway to decrease runoff
- Compost soil add mix for water retention and plant health
- WaterSense® toilets throughout
- Low flow showerheads throughout
- ENERGY STAR rated appliances including front-loading clothes washer with steam cycle
- Forest Stewardship Council (FSC®) certified framing materials, trim, cabinets, and doors
- 100-year clay tile roof
- Engineered rain screen wall assembly inhibits moisture and mold growth
- Stainless steel sill pans and integral flashing to protect structure and prevent water intrusion
- Hand deconstruction of existing home allowing reuse of existing framing
- Salvage and reuse of doors, cabinets and fixtures from existing structure
- Reclaimed hardwood flooring throughout new home
- Recycling of all excess building materials and diversion from landfills
- Mature existing elm tree harvested and milled for use as finish material
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