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Wisconsin · WI
Steel & concrete modular homes in Wisconsin
Modular homes are built to state and local building codes and set on a permanent foundation. Here is what applies in Wisconsin.
Wisconsin program
- Administering agency
- WI Dept. of Safety and Professional Services (DSPS), Division of Industry Services
- Program / authority
- Wis. Stat. 101.70 and 101.73-101.74; Uniform Dwelling Code, SPS 320-325
- Code basis
- Uniform Dwelling Code (SPS 320-325) for 1- and 2-family dwellings
- Inspection & seal
- Manufacturer gets DSPS approval with a Compliance Assurance Manual; third-party agency reviews plans and units carry a state-approved label.
- Good to know
- A UDC permit is required for modular installations; a delegated municipality or DSPS via eSLA issues it, with footing-to-final inspections.
- Official source
- https://dsps.wi.gov/a-z-programs-list/udc/
Summarised from public sources; rules change. Confirm with Wisconsin’s agency and your local building department before ordering.
Your project in Wisconsin
Step 1
Confirm zoning & permits
Local jurisdiction sets lot, setback and design rules. See Permits & Zoning.
Step 2
Plans reviewed to state code
We stamp plans for the code that applies in Wisconsin.
Step 3
Factory build & inspection
Third-party or state inspection happens in the factory, then final on site.
Step 4
Set, connect, certify
Modules crane in, joints are torqued and inspected, and local sign-off issues the CO.