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Project 1753

W 7th Passive Duplex

Forge Craft Architecture

Austin, Texas

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

2A - Hot - Humid
Construction Completion

2024
Status

Certified
INT. Conditioned Floor Area

5064 ft²

Core Project Team

Builder

Jacob Zoske
Phius CPHB

David Moody
Phius Certified Rater

Roger Taylor
Phius CPHC (Lead)

Trey Farmer
Project Submitter

Trey Farmer

Project Information

- Architecture Planning
  
  Forge Craft Architecture
- Building Owner
  
  Sean and Hyeyeon Brown
- Mechanical Systems Designer
  
  Positive Energy
- Additional Consultants
  
  Acton Partners
- Construction Company
  
  Form to Finish
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  2
- Number of Stories
  
  3
- Program Version
  
  Phius CORE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  5064 ft²
- Market Category
  
  Market Rate
- Total Project Cost
  
  $3,500,000
- Status
  
  Certified
- Design Certification
  
  December 11, 2023
- Final Certification
  
  September 10, 2026
- Construction Completion
  
  2024
- ASHRAE Climate Zone
  
  2A - Hot - Humid
- Region
  
  South Central

Performance

- Annual Heating Demand
  
  2.73 kBTU/ft².yr
- Annual Cooling Demand
  
  13.87 kBTU/ft².yr
- Peak Heating Load
  
  5.38 kBTU/ft².yr
- Peak Cooling Load
  
  3.81 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  13.77 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4089 kWh/person.yr

Enclosure

- Facade Type
  
  Fiber Cement
- Window to Wall Ratio
  
  18
- Wall 1 R-Value
  
  31
- Roof 1 R-Value
  
  40
- Floor 1 R-Value
  
  10
- Window Manufacturer 1
  
  Marvin
- Whole Window U-Value 1
  
  0.25
- Window Glazing SHGC 1
  
  0.27

Systems & Equipment

- Ventilation System Manufacturer
  
  Broan
- Measured Ventilation Fan Efficiency
  
  0.58 W/cfm
- Heating System Manufacturer
  
  Mitsubishi
- Cooling System Manufacturer
  
  Mitsubishi
- Hot Water System Manufacturer
  
  Rheem