West Allis doesn't have a basement page. Its rules come from one code section, 13.05, which decides which jobs can skip a permit.
What section 13.05 says
The no-permit exemption covers only repairs and minor alterations that don't change occupancy, life safety, area, structural strength, fire protection, egress or exiting, light or ventilation [1]. If work was done without a permit, getting one later may mean opening wall, floor or ceiling finishes so it can be inspected, at the owner's expense, and paying higher fees [1].
Do I need a permit to finish a basement in West Allis?
Plan on asking. A finish that adds rooms usually changes things on the 13.05 list, such as egress, light or ventilation, and only work that leaves those alone is exempt [1].
Can a contractor start before the permit is issued?
No. The code says the property owner shall not allow permit work to begin until a permit has been applied for and issued. An agent can apply, but the owner stays responsible [1].
Next steps
See remodeling a finished basement, permits around Milwaukee or ceiling height and layout. Close by: Milwaukee and Wauwatosa. The service areas page lists every town, and how it works covers the state code.
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Sources
- City of West Allis Code 13.05, Permits. https://westallis.municipalcodeonline.com/book/print?name=13.05_Permits&type=ordinances