Affordable Housing

Arbora Court

Image © Weber Thompson Architects

Image © Weber Thompson Architects

Client: Bellwether Housing
Architect: Weber Thompson Architects
Project Size: 125,000 sf


  • Utility Bill Analysis
  • Benchmarking
  • Model Calibration
  • Informing Design
  • Efficiency Measure Analysis
  • Seattle Energy Code Compliance

The Arbora Court Apartments is a project being realized by Bellwether along with University Christian Church (UCC). It is a new, 133 unit affordable, housing project planned for the bustling University District of Seattle. Leveraging a grant from Enterprise Green Communities, Bellwether Housing assembled a robust team of consultants, designers, and a contractor, Walsh Construction, to develop and evaluate a large package of energy, water, and waste saving strategies early in the design. 360 spearheaded the utility bill analysis of two, recently built, similar buildings in the owner’s portfolio, and used the existing building information to inform and tune the occupant dependent loads assumed for the UCC design analysis. The eQUEST energy model developed by 360 for the project was used to calculate the savings of over 30 different efficiency measures, bundled into multiple packages. 360 worked closely with Bellwether and Walsh to compile the construction costs, utility costs savings, and utility incentives into a comprehensive financial analysis.

Green Communities Project

Client: Bellingham/Whatcom County Housing Authority
Architect: RMC Architects
Project Size: Three building sites, totaling 260,000 sf


  • Utility Bill Analysis
  • On-site Performance Assessment
  • Model Calibration
  • 90.1 Appendix G Energy Modeling
  • Measurement and Verification (M&V)
  • Utility Incentive Coordination

The Green Communities Project is a major renovation to three public housing authority-owned multi-family towers located in Bellingham, Washington. Funded by a $9.9 million grant from the U.S. Department of Housing and Urban Development (HUD)/American Recovery and Reinvestment Act (ARRA) stimulus funding, the project’s stated goal is to “facilitate transformational energy efficiency and ‘green’ retrofits to substantively increase energy efficiency and environmental performance of public housing properties and thereby reduce energy costs, generate resident and PHA energy savings, and reduce greenhouse gas emissions attributable to energy consumption.”

For this project, 360 Analytics started with an in-depth evaluation of existing building performance, including regression analysis of historical utility data, physical building audits, and targeted short-term sub-metering to develop calibrated, baseline energy models. These models were leveraged to evaluate the impacts of individual energy conservation measures, as well as complete a 90.1-2004 Appendix G analysis to demonstrate grant compliance. Ongoing activities include development and execution of an IPMVP compliant measurement and verification protocol, continued analysis of utility meter and sub-metered energy use data and coordination of utility incentive applications.