quotes
A multifamily building with 65% better energy performance than current code (equivalent to being “zero energy ready”) is an estimated 11.2% less expensive to build and operate over time than a code building.

from Cost Analysis of Potential Energy Code Improvements 2016



Our research work has focused on providing market transformation information to city and state governments and home builders. That work aids in designing new policies, energy efficiency program designs, and building best practices in aid of advancing better buildings. We have done studies on the value of green buildings in the Northwest, effective energy label design, and sustainable earthquake resilient wall assemblies, to name a few. This work looks to fill in the gaps necessary for removing barriers to a more sustainable, resilient, and energy efficient homes across America.

Read our research papers below to dig deeper

Energy Efficiency & Seismic Resiliency

Energy Efficiency & Seismic Resiliency

March, 2018
Improving Energy Efficiency and
Seismic Resiliency in Older Housing Stock

Download the full report (PDF - 23 MB) »

High Performance Appraisal Addendum

High Performance Appraisal Addendum

January 2017
A high performance home data cost addendum for builders and contractors to provide detailed high performance improvements to professional appraisers and real estate professionals.

 Download PDF (245 KB) »

Energy Code Cost Analysis Study

Energy Code Cost Analysis Study

December 2, 2016
Cost Analysis of Potential Energy Code Improvements

Download the full report (PDF - 9.5 MB) »

Home Valuation Study

Home Valuation Study

October 2015
The Market Valuation of Energy Efficient and
Green Certified Northwest Homes.​ With support from the Northwest Energy Efficiency Alliance.

Download the full report (PDF - 30.5 MB) »
Download the Appraiser Reference Sheet (PDF - 11.6 MB) >>

NW Building Best Practices

NW Building Best Practices

July 2015
Three printable posters that provide builders with detailed information on mini-split technology, thermal enclosures, and HRV system best practices. Download the individual posters using the links below:

HRV Best Practices for NW >>
Thermal Enclosure: Efficient Walls & Airtightness >>
Mini-split Technology in New Construction >>

Green Community Developement

Green Community Developement

October 2014
A case study highlighting the financial benefits to green and high performance fully certified communities.

Download PDF (200 KB) »

ADU Financing Guide

ADU Financing Guide

October 2014
A snapshot of the ADU financing options available in the Portland, Oregon metro area during the fall of 2014.

Download PDF (200 KB) »

Energy Label Policy Playbook

Energy Label Policy Playbook

July 2014
A Bullitt Foundation-initiated project aimed at developing technical, administrative, and marketing best practices in residential energy labeling and disclosure.

Download PDF (300 KB) »

Appraising ADUs

Appraising ADUs

May 2014
Additional Dwelling Units (ADUs) are an emerging type of residential development with unique legal uses. This short guide outlines the best practices to follow when valuing a property with an ADU.

Download PDF (300 KB) »

Energy Ratings & Property Tax

Energy Ratings & Property Tax

Februrary 2014
One pathway for making home energy ratings more visible to the real estate market is to include them as part of official government property records, such as on property tax records.

Download PDF (188 KB) »

Building Component Cost Premiums

Building Component Cost Premiums

Februrary 2014
Cost premiums for select high performance home building components investigation, conducted in 2013.

Download PDF (245 KB) »

Regional Energy Rating & Disclosure

Regional Energy Rating & Disclosure

April 2013
The assessment is an introduction to this policy topic and the first step in a multi-stage project to support a regional framework for residential energy ratings and disclosure policies.

Download PDF (5.9 MB) »