Do I need a permit for bathroom remodel in Unincorporated Ozaukee County?

It depends. Whether bathroom remodel needs a permit in Unincorporated Ozaukee County comes down to the details of your project.

Repairs and maintenance, including repair of plumbing and electrical systems, are outside the UDC under SPS 320.05(3); whether an alteration needs a building permit is set by local ordinance (SPS 320.09(2)(b)). SPS 382.21 requires all new plumbing and all altered or extended parts of existing systems to be tested and inspected, with the test witnessed by the plumbing inspector where the municipality has one. Plumbing must be installed by licensed plumbers under a master plumber, except that an owner may do plumbing in a one-family building the owner owns and occupies as a home unless a local ordinance requires a license (Wis. Stat. 145.06(4)(a)). This remodel moves plumbing, adds a tub or shower, or changes wiring, exhaust venting or walls. Like-for-like fixture swaps are the part of a bathroom remodel most often exempt; moving pipes and new wiring are not. Plumbing and electrical work each normally need their own permit and rough-in inspection before the walls are closed, so schedule inspections before drywall or tile backer goes up. Bathrooms have specific electrical safety rules, such as ground-fault protection on outlets, which the electrical inspection checks.