• Renderings courtesy of LRS Architects.

Terwilliger Plaza, Parkview Expansion

Portland, OR

Business Type

High-rise senior living facility


370,000 square feet

The largest Passive House project on the west coast AND the largest senior living Passive House, this community demonstrates how passive house principles can be scaled up for high-rise construction projects while still balancing cost, resident comfort, and performance.


LRS Architects


Terwilliger Members (Resident-Owned)

Project Partner

Walsh Construction



  • Energy Trust of Oregon (ETO) Path to Net Zero
  • Architecture 2030
  • Passive House

Special features

  • EUI of 13, which is lower than the EUI of 18 required for Architecture 2030
  • PV panels on rooftop
  • Superior indoor air quality and thermal comfort
  • All-electric, including heat pump clothes dryers and induction stovetops
  • Heat pump domestic hot water heater
  • Skybridge connects the building to the campus
  • High efficiency VRF mechanical systems
  • High-performance triple-pane windows
  • DOAS with energy recovery for continous 100% fresh ventilation without drafts

Media Coverage

DJC: Portland project comes with connector


Portland Business Journal: Portland's newest skybridge set to open next year


Business Tribune: Parkview expansion reaches skybridge milestone


Construction Dive: Terwilliger Plaza, One of the Largest Passive House Certified Senior Living Buildings in the U.S.


Portland Business Journal: A 370,000-square-foot tower rises at Terwilliger Plaza in Southwest Portland


Seniors Housing Business: LRS Architects Designs 127-Unit Parkview at Terwilliger Plaza in Portland, Oregon