Building Inspection Step 1: City of Oconto – Permission to Build Permit Click Here Step 2: New Construction/Addition/Alteration Projects New Construction, Addition, & Alteration Building Permits and Inspections are processed and performed by Duff Leaver Inspections. Email: duffleaver@me.com Phone: 715-216-4732 www.duffleaverinspections.com/city-of-oconto/ Commercial Projects Commercial Projects are processed and performed by Chad Rothmeier – Commercial Building Inspector with the State of Wisconsin Department of Safety & Professional Services (DSPS). Email: chad.rothmeier@wisconsin.gov Phone: 608-438-5255 https://dsps.wi.gov/Pages/Home.aspx