Mechanical

Requirements for Applying for a Permit: 

• Mechanical Permit Application Checklist (PDF)
• Completed Application
  • HVAC (PDF)
  • Miscellaneous Mechanical (PDF)
  • Propane (PDF)
  • Solar (PDF)
  • Wood Burning Appliance (PDF)
• Detailed Scaled Site Plan 
  • Site Plan Requirements Checklist (PDF)
  • Scale must be 1" x 20' minimum and 1" x 200' maximum 
  • Required for Miscellaneous Mechanical, Propane (if a tank is being installed, moved, or replaced), and Solar permit applications
• Detailed Floor Plan
  • Must show locations of mechanical system(s) 
• Manufacturer's Product Specifications
• Proof of Ownership (if applicable)

Additional Requirements to Obtain a Permit: 

• If your site is near a water body or other critical area, special conditions may apply.
• Electrical permits may be required and are issued by the Washington State Department of Labor and Industries.
• When property is jointly owned or owned by others, letters from all owners must be submitted indicating project approval.