Guides
What the Washington energy code asks of a remodel or an addition
How the 2021 Washington State Energy Code treats a remodel or addition: windows, insulation, ducts, energy credits, blower door tests, conversions, Seattle.
David Meade · October 7, 2026
What the 2021 Washington State Energy Code means for your new home
The 2021 Washington State Energy Code for a new Seattle or Eastside home: credits by size, heat pump vs gas, walls, windows, air testing and the EV circuit.
David Meade · September 26, 2026
Passive House Architect in Seattle, WA
Piper Cole Architects designs high-performance Passive House homes in Seattle and the Eastside, using airtight, efficient and climate-responsive design.
David Meade · July 2, 2026
Biophilic Design & Daylighting for Seattle Homes
Biophilic design and daylighting for Seattle homes: how to bring in light and nature in a cloudy climate. Architect insight from Piper Cole, Kirkland WA.
David Meade · June 22, 2026
HRV vs ERV: Which Ventilation Is Right for PNW Homes?
HRV vs ERV ventilation for Pacific Northwest homes: which system fits our damp climate, and why it matters. Architect guidance from Piper Cole.
David Meade · June 22, 2026Passive House vs. Net Zero: Which Is Right for Your Seattle Home?
Passive House vs. net zero energy for Seattle homes: performance, cost, certification, and which approach makes most sense in the Pacific Northwest.
David Meade · May 30, 2026Seattle Green Building Programs for Homeowners 2026: Incentives, Rebates, and Requirements
Seattle green building incentives for homeowners in 2026. PSE rebates, Seattle City Light programs, energy code requirements, and ADU energy compliance.
David Meade · May 30, 2026
Net Zero Homes in Seattle: What They Are, What They Cost, and How to Build One
Building or renovating a net zero home in Seattle? Energy targets, insulation, mechanical systems, and solar in the Pacific Northwest climate.
David Meade · May 26, 2026
Eco-Friendly Home Design in Seattle: Passive House, Net Zero, and Green Building
Eco-friendly home design in Seattle: Passive House, net zero energy, heat pumps, and green building options from code-minimum to Living Building standard.
David Meade · May 25, 2026
Sustainable Architecture in Seattle: Green Building for Homes and Businesses
Sustainable architecture in Seattle: passive solar, Passive House, net zero energy, LEED, and green building strategies for homes and businesses.
David Meade · May 25, 2026
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