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Project 1388

Cascade Hudson Apartments

Seattle, Washington

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

4C - Mixed - Marine
Construction Completion

2019
Status

Certified
INT. Conditioned Floor Area

14813 ft²

Core Project Team

Phius Certified Verifier

Greta Tjeltveit
Phius CPHC (Secondary)

Skylar Swinford
Phius CPHC (Lead)

Joseph Giampietro
Project Submitter

Joseph Giampietro

Project Information

- Building Owner
  
  Sloan Ritchie/3700 Hudson LLC
- Construction Company
  
  Cascade Built
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  35
- Number of Stories
  
  4
- Program Version
  
  PHIUS+ 2018
- INT. Conditioned Floor Area
  
  14813 ft²
- Status
  
  Certified
- Design Certification
  
  March 6, 2020
- Final Certification
  
  March 9, 2020
- Construction Completion
  
  2019
- ASHRAE Climate Zone
  
  4C - Mixed - Marine
- Region
  
  Northwest

Performance

- Annual Heating Demand
  
  3.28 kBTU/ft².yr
- Annual Cooling Demand
  
  2.33 kBTU/ft².yr
- Peak Heating Load
  
  3.86 kBTU/ft².yr
- Peak Cooling Load
  
  2.09 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  24.43 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  21.52 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  7180 kWh/person.yr
- Source Energy (Residential w/Renewables)
  
  6168 kWh/person.yr
- Air Tightness (per enclosure area)
  
  0.053 CFM50/ft²

Enclosure

- Wall 1 R-Value
  
  30
- Roof 1 R-Value
  
  57
- Floor 1 R-Value
  
  16
- Whole Window U-Value 1
  
  0.16
- Window Glazing SHGC 1
  
  0.23

Systems & Equipment

- Measured Ventilation Fan Efficiency
  
  1.5 W/cfm
- Renewable Energy Type(s)
  
  RECs (Renewable Energy Certificates)