Washington, Spokane County HVAC Permit Regulations and County Ordinances for Unincorporated Areas
Spokane County HVAC Permit Requirements
Spokane County requires permits for most construction and trade projects, including HVAC installations and replacements. This applies to properties within the unincorporated areas of the county, as well as the towns of Rockford and Spangle.
To determine if your property is within Spokane County's jurisdiction for permitting, you can use the SCOUT Maps tool.
Permitting Process Overview:
- Verify Jurisdiction: Confirm your property is within the Spokane County service area using SCOUT Maps.
- Create an Account: Register and verify your account in the Online Permit Center (SmartGov portal).
- Gather Documents: Collect all necessary submittal items, including plans and documents in PDF format, adhering to the "Plan and Documents Standards."
- Apply Online: Log in to the Online Permit Center to submit your application and create a permit number. Select the appropriate permit type, such as "Mechanical" or "HVAC."
- Plan Review: Your submitted plans will be reviewed for compliance with adopted building codes. You will be notified of any required corrections or additional information.
- Pay Fees: Permit fees must be paid before the permit can be routed for review.
- Receive Permit: Once approved and fees are paid, your permit will be issued.
- Inspections: Inspections are scheduled after permit issuance and are typically available Monday through Thursday, with Friday mornings also available, excluding holidays.
Specific HVAC Considerations:
- Mechanical Permits: HVAC work generally falls under mechanical permits.
- Ductwork: Ductwork modifications to existing systems require a permit. However, ductwork associated with the installation or replacement of air conditioners and furnaces is often included in the appliance permit fees.
- Ventilation Systems: Permits are only required for ventilation systems that are not already part of a heating or air conditioning system.
- Duct Leakage Affidavit: In accordance with the Washington State Energy Code (WSEC), a Duct Leakage Affidavit may be required for new HVAC installations or replacements to ensure compliance for final inspection.
- Multiple Use Plans (MUP): For contractors planning to use standardized construction plans for multiple similar projects (e.g., one and two-family dwellings), the MUP program may allow for reduced plan review fees.