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Project 1662

Hobson Place

Runberg Architecture Group, O’Brien360, 4EA, RDH

Seattle, Washington

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

4C - Mixed - Marine
Construction Completion

2021
Status

Certified
INT. Conditioned Floor Area

44596 ft²

Core Project Team

Phius CPHC (Secondary)

Joe Giampietro
Phius CPHB

Sharon Libby Eyerly
Phius Certified Verifier

Cybil Tribie
Phius CPHC (Lead)

Dan Whitmore
Project Submitter

Dan Whitmore

Project Information

- Architecture Planning
  
  Runberg Architecture Group, O’Brien360, 4EA, RDH
- Building Owner
  
  Downtown Emergency Service Center
- Mechanical Systems Designer
  
  Rushing Company
- Additional Consultants
  
  Lotus Development Partners, BEE Engineers, Greta Tjeltveit 4EA
- Construction Company
  
  Walsh Construction
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  92
- Number of Stories
  
  8
- Program Version
  
  Phius CORE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  44596 ft²
- Status
  
  Certified
- Design Certification
  
  March 29, 2021
- Final Certification
  
  March 13, 2024
- Construction Completion
  
  2021
- ASHRAE Climate Zone
  
  4C - Mixed - Marine
- Region
  
  Northwest

Performance

- Annual Heating Demand
  
  2 kBTU/ft².yr
- Annual Cooling Demand
  
  0.5 kBTU/ft².yr
- Peak Heating Load
  
  3.5 kBTU/ft².yr
- Peak Cooling Load
  
  1.36 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  23.32 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  20.26 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  5963 kWh/person.yr
- Source Energy (Residential w/Renewables)
  
  5180 kWh/person.yr
- Air Tightness (per enclosure area)
  
  0.066 CFM50/ft²

Enclosure

- Wall 1 Type
  
  Exterior Load Bearing Double-Stud
- Wall 1 R-Value
  
  21
- Wall 1 Insulation Type
  
  Fiberglass, GPS
- Wall 2 Type
  
  Exterior Load Bearing Double-Stud
- Wall 2 R-Value
  
  16
- Wall 2 Insulation Type
  
  Fiberglass, GPS
- Wall 3 Type
  
  Insulated Concrete Form (ICF)
- Wall 3 R-Value
  
  11
- Wall 3 Insulation Type
  
  GPS, XPS
- Roof 1 Type
  
  Unvented Roof
- Roof 1 R-Value
  
  59
- Roof 1 Insulation Type
  
  XPS, PolyIso, Fiberglass, Other
- Floor Type 1
  
  Overhang Floor
- Floor 1 R-Value
  
  33
- Floor 1 Insulation Type
  
  Fiberglass
- Floor Type 2
  
  Slab on Grade
- Floor 2 R-Value
  
  10
- Floor 2 Insulation Type
  
  XPS
- Phius Certified Window
  
  VPI Endurance Awning Window
- Window Manufacturer 1
  
  VPI
- Whole Window U-Value 1
  
  0.17
- Window Glazing SHGC 1
  
  0.33

Systems & Equipment

- Ventilation System Manufacturer
  
  Swegon
- Ventilation System Product Name
  
  Swegon Gold 11-12 ERV-RS-1 / Swegon Gold 25-30 ERV-RS-2 / Swegon Gold 25-30 ERV-RS-5
- Ventilation System Layout
  
  Semi-Centralized
- Ventilation System Type
  
  ERV
- Sensible Recovery Efficiency
  
  80%
- Latent Recovery Efficiency
  
  78%
- Measured Ventilation Fan Efficiency
  
  1.02 W/cfm
- Heating System Manufacturer
  
  King Electric (cove heaters)
- Heating System Type
  
  Electric Resistance
- Hot Water System Manufacturer
  
  Sanden
- Hot Water System Product Name
  
  Sanden HPWH
- Hot Water System Layout
  
  Centralized
- Hot Water System Type
  
  Split Heat Pump Water Heater
- Hot Water System Performance Rating
  
  22
- Range Hood Type
  
  Exhaust
- Dryer Type
  
  Vented
- Renewable Energy Type(s)
  
  On-Site PV, RECs (Renewable Energy Certificates)
- Renewable Energy Annual Production
  
  43105 kWh/yr
- Renewable Energy System Size
  
  42.42kW