Skip to main content

- What is Passive Building?
  Your passive building questions, answered
  
  Passive Building
  
  Passive Building Principles
  
  Passive Building FAQs
  
  A Better Way to Zero
  
  Passive Building Foundations Training
- Sectors
  Passive isn't just for houses
  
  Single-Family
  
  Multifamily
  
  Office Buildings
  
  Schools
  
  Other Non-Residential
- Projects
  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
  Find a Project
  
  Project Certification
  
  Submit a Project
  
  Certification Review Queue
- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
  
  Product Certification Overview
  
  Window Certification
  
  Panel Certification
- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
  Find a Professional
  
  Phius Certified Consultant (CPHC®)
  
  Phius Certified Builder (CPHB)
  
  Phius Certified Rater
  
  Phius Certified Verifier
  
  Phius Certified Trades Professional
  
  Phius Associate
  
  Maintain Credentials
Our Approach
- New Construction
  Phius CORE and Phius ZERO provide the path for constructing a Phius building from the ground up.
- Retrofit
  Upgrade existing buildings to Phius standards using Phius CORE REVIVE and Phius ZERO REVIVE.
- Commercial
  Phius standards aren't just for residential buildings. Phius CORE COMM and Phius ZERO COMM can be applied to any non-residential building.
Categories
December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
Become a Phius Enclosure Specialist!
Upcoming Sessions
- Phius Certified Builder Training and Certification Exam | December 2025
  December 1 – 12
- Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
  December 1 – January 16
- Phius Certified Consultant Training & Certification Exam | December 2025
  December 1 – 12
- Dec. Webinar: We Got It - Prerequ Updates
  December 2
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
  
  Financial Incentives
  
  Codes
  
  Qualified Allocation Plans
  
  Cost Data
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
  
  Certification Support
  
  Calculators and Protocols
  
  Feasibility Study
  
  METr Design Tool
  
  WUFI Passive Design Tool
  
  Climate Data
  
  Quality Assurance
  
  Tech Corner

Project 1696

Pok Oi Residences

Bruner / Cott

Boston, Massachusetts

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

5A - Cool - Humid
Construction Completion

2025
Status

Certified
INT. Conditioned Floor Area

82412 ft²

Core Project Team

Phius CPHB

Eric Dinsmore
Builder

Dan Pope
Phius CPHB

Edward DeFanti
Phius CPHB

Alex Mahegan
Phius Certified Verifier

Mark Norton
Phius CPHC (Secondary)

Maciej Konieczny
Phius CPHC (Lead)

Kevin Collins
Project Submitter

Frank Stone

Project Information

- Affiliate
  
  Beacon Communities
- Developer
  
  Beacon Communities
- Architecture Planning
  
  Bruner / Cott
- Building Owner
  
  Chinese Consolidated Benevolent Association of New England
- Mechanical Systems Designer
  
  Petersen Engineering
- Additional Consultants
  
  New Ecology, Inc. as CPHC and Verifier. NEI General Contractors as Builder.
- Construction Company
  
  NEI General Contracting
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  85
- Number of Stories
  
  6
- Program Version
  
  PHIUS+ 2018 CORE
- INT. Conditioned Floor Area
  
  82412 ft²
- Market Category
  
  Affordable Housing
- Status
  
  Certified
- Design Certification
  
  January 13, 2021
- Final Certification
  
  October 28, 2025
- Construction Completion
  
  2025
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  3.17 kBTU/ft².yr
- Annual Cooling Demand
  
  3.02 kBTU/ft².yr
- Peak Heating Load
  
  3.04 kBTU/ft².yr
- Peak Cooling Load
  
  2.72 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  20.94 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  19.35 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4834 kWh/person.yr
- Source Energy (Residential w/Renewables)
  
  4385 kWh/person.yr

Enclosure

- Wall 1 R-Value
  
  28
- Roof 1 R-Value
  
  50
- Floor 1 R-Value
  
  10
- Window Manufacturer 1
  
  Quaker
- Whole Window U-Value 1
  
  0.2
- Window Glazing SHGC 1
  
  0.53

Systems & Equipment

- Ventilation System Manufacturer
  
  Renewaire
- Ventilation System Layout
  
  Centralized
- Ventilation System Type
  
  ERV
- Sensible Recovery Efficiency
  
  80%
- Measured Ventilation Fan Efficiency
  
  0.47 W/cfm
- Heating System Manufacturer
  
  Mitsubishi
- Heating System Type
  
  Variable Refrigerant Flow (VRF)
- Cooling System Manufacturer
  
  Mitsubishi
- Hot Water System Manufacturer
  
  Lochinvar
- Hot Water System Layout
  
  Centralized
- Hot Water System Type
  
  Natural Gas Water Heater
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  38524 kWh/yr
- Renewable Energy System Size
  
  32.83kW