Yes. All commercial projects that add square footage to an existing building require a building permit. The Building Safety Division can be contacted at 509-585-4561 for general information.
Generally, an application for a building permit includes:
(Note: Some plans or calculations may not always be necessary. You should contact the Building Safety Division for more specific information.)
A plan review fee is required at the time of submittal for all commercial projects. Please contact the Building Division at 509-585-4561 for the fee amount.
Online Permit Portal
In person-Building Safety DivisionCity Hall210 W 6th AvenueKennewick, WA 99336