flexiblefullpage -
billboard - default
interstitial1 - interstitial
catfish1 - bottom
Currently Reading

Largest Passive House structure in the U.S. to be built in Oregon

Largest Passive House structure in the U.S. to be built in Oregon

Orchards at Orenco, a 57-unit affordable housing complex in Hillsboro, Oregon, is the first of a three-phase, three-building complex.


By BD+C Staff | June 18, 2014
Rendering courtesy Walsh Construction
Rendering courtesy Walsh Construction

The largest Passive House in the nation will be completed within a year in Hillsboro, Oregon, the Oregonian reports.

The Passive House structure will be the first of three phases for the Orchards at Orenco project, which aims to construct mixed-availability buildings and provide 150 units of affordable housing.

The Passivhaus ("Passive House" in the U.S.), a concept founded in the 1990s by German physicist Wolfgang Feist, is a strict building standard that decreases energy used for heating and cooling by up to 90%. While the standard spread quickly in Europe (by 2010, the continent had 25,000 Passivhaus-rated structures), the U.S. has been slow to adopt the standard. Only about 100 Passive House projects exist across the country. 

Here are more details on the Orchards at Orenco project, courtesy Walsh Construction:

REACH Community Development continues its affordable home-building program with the launch of its Orchards at Orenco project this month at Hillsboro’s Orenco Station.

REACH, a nonprofit with nearly 1,900 units of affordable housing, is beginning construction of the 57-unit first phase of Orchards at Orenco, a three-building complex that will eventually provide about 150 units affordable housing. Phase 1 will serve families earning 50 percent or less of the area median family income, or about $30,000.

The project is designed by William Wilson Architects and Ankrom Moisan Architects; and Green Hammer is the Passive House Consultant.

The $14.5 million project is financed with $9 million in tax credits purchased by Wells Fargo Bank, a $2.4 million permanent loan with Oregon state credits and contributions from the Washington County, Meyer Memorial Trust, Energy Trust of Oregon and NeighborWorks America.

Key Passive House features include:

  • The roof will have 12 inches of insulation, about four times what is required. The light color will reflect solar radiation and help moderate the building temperature.
  • PVC-fiberglass hybrid windows will have argon-filled triple pane glazing and are designed to close tighter than more common models.
  • The building is positioned to keep the building comfortable in summer months with shading devices that allow winter sun but block it in the summer.
  • The building’s super-insulated envelope includes four inches of foam insulation under the ground floor slab.

Related Stories

K-12 Schools | May 15, 2024

A new Alabama high school supports hands-on, collaborative, and diverse learning

In Gulf Shores, a city on Alabama’s Gulf Coast, a new $137 million high school broke ground in late April and is expected to open in the fall of 2026. Designed by DLR Group and Goodwyn Mills Cawood, the 287,000-sf Gulf Shores High School will offer cutting-edge facilities and hands-on learning opportunities.

Adaptive Reuse | May 15, 2024

Modular adaptive reuse of parking structure grants future flexibility

The shift away from excessive parking requirements aligns with a broader movement, encouraging development of more sustainable and affordable housing.

Affordable Housing | May 14, 2024

Brooklyn's colorful new affordable housing project includes retail, public spaces

A new affordable housing development located in the fastest growing section of Brooklyn, N.Y., where over half the population lives below the poverty line, transformed a long vacant lot into a community asset. The Van Sinderen Plaza project consists of a newly constructed pair of seven-story buildings totaling 193,665 sf, including 130 affordable units.

K-12 Schools | May 13, 2024

S.M.A.R.T. campus combines 3 schools on one site

From the start of the design process for Santa Clara Unified School District’s new preK-12 campus, discussions moved beyond brick-and-mortar to focus on envisioning the future of education in Silicon Valley.

University Buildings | May 10, 2024

UNC Chapel Hill’s new medical education building offers seminar rooms and midsize classrooms—and notably, no lecture halls

The University of North Carolina at Chapel Hill has unveiled a new medical education building, Roper Hall. Designed by The S/L/A/M Collaborative (SLAM) and Flad Architects, the UNC School of Medicine’s new building intends to train new generations of physicians through dynamic and active modes of learning.

Sustainability | May 10, 2024

Perkins&Will’s first ESG report discloses operational performance data across key metrics

Perkins&Will recently released its first ESG report that discloses the firm’s operational performance data across key metrics and assesses its strengths and opportunities.

MFPRO+ News | May 10, 2024

HUD strengthens flood protection rules for new and rebuilt residential buildings

The U.S. Department of Housing and Urban Development (HUD) issued more stringent flood protection requirements for new and rebuilt homes that are developed with, or financed with, federal funds. The rule strengthens standards by increasing elevations and flood-proofing requirements of new properties in areas at risk of flooding. 

Government Buildings | May 10, 2024

New federal buildings must be all-electric by 2030

A new Biden Administration rule bans the use of fossil fuels in new federal buildings beginning in 2030. The announcement came despite longstanding opposition to the rule by the natural gas industry. 

Sustainable Development | May 10, 2024

Nature as the city: Why it’s time for a new framework to guide development

NBBJ leaders Jonathan Ward and Margaret Montgomery explore five inspirational ideas they are actively integrating into projects to ensure more healthy, natural cities.

Mass Timber | May 8, 2024

Portland's Timberview VIII mass timber multifamily development will offer more than 100 affordable units

An eight-story, 72,000-sf mass timber apartment building in Portland, Ore., topped out this winter and will soon offer over 100 affordable units. The structure is the tallest affordable housing mass timber building and the first Type IV-C affordable housing building in the city. 

boombox1 - default
boombox2 -
native1 -

More In Category




halfpage1 -

Most Popular Content

  1. 2021 Giants 400 Report
  2. Top 150 Architecture Firms for 2019
  3. 13 projects that represent the future of affordable housing
  4. Sagrada Familia completion date pushed back due to coronavirus
  5. Top 160 Architecture Firms 2021