Effective January 9, 2008 all permit applications must comply with the 2006 editions of the Seattle Building, Residential, Mechanical, Fuel Gas, and Fire codes.

Technical Code staff at DPD develop and maintain building regulations that promote safety, accessibility, health and energy efficiency. They develop code amendments and Director's Rules affecting the following regulations in Seattle:

• Boiler Code
• Building Code 
  - 2006 Seattle Building Code
  - 2003 Seattle Building Code
• Electrical Code
• Elevator Code
• Energy Code
• Existing Building Code
  - 2006 Seattle Existing Building Code 
• Fire Code (enforced by the Seattle Fire Department)
  - 2006 Seattle Fire Code 
  - 2003 Seattle Fire Code 
• Fuel Gas Code
  - 2006 Seattle Fuel Gas Code 
  - 2003 Seattle Fuel Gas Code 
• Licensing Codes
• Mechanical Code
  - 2006 Seattle Mechanical Code 
  - 2003 Seattle Mechanical Code 
• Refrigeration Code
• Residential Code
  - 2006 Seattle Residential Code 
  - 2003 Seattle Residential Code 
• Stormwater, Grading and Drainage Control Code
• Site Development Regulations

Links to technical codes and related resources, along with details on code amendments, key staff contacts, and Seattle's Construction Codes Advisory Board are available on this website from the menu at left.

"Get to Know the I-Codes" Flyer Series
A series of flyers exploring the differences between the Uniform Codes and the I-Codes is available below. Additional topics will be added as they become available.

• Means of Egress - Compares means of egress in the IBC and Uniform Building Code
• Building Uses - Discusses mixed-use building regulations, and uses and occupancies in the IBC
• Chapters 5, 6 & 7 - Addresses heights and areas, types of construction and fire-resistive assemblies in the IBC
• Introducing the IRC - Introduces the International Residential Code
• Introducing the IMC - Introduces the International Mechanical Code
• Structural Provisions - Introduces IBC Chapters 16-23, which govern general structural designs
• Sprinkler Systems - Outlines the added benefits of including sprinkler systems in buildings
• Seattle's Chapter 34 - Seattle's Chapter 34, which will replace the IBC Chapter 34, covers provisions for existing buildings
• Residences in the IRC - Offers tips for designing wood-framed residential buildings and identifies residential occupancies in the IRC and IBC.
• Seismic Provisions - Outlines changes to seismic design of buildings in the 2003 Seattle Building Code.