Can you build a PSL Modular unit in Indiana?

The Indiana Department of Homeland Security (IDHS), Code Enforcement Section, through its Industrialized Building Systems (Modular) and Mobile Structures program. IDHS reviews and releases the plans for each building system and conducts in-plant inspection; each unit receives a serialized certification label (a gold, state-shaped die-cut sticker for modular) placed on the electric service panel. With the seal, your local jurisdiction permits the site work without re-reviewing the structure.

Yes. Through the IndyRezone initiative, Indianapolis's Unified Development Ordinance allows ADUs in most residential districts (D-A and D-5 through D-12). A detached ADU is generally capped around 900 sq ft (some standards reference 750 sq ft or 40% of the main home), with a maximum height around 22 feet, accessory-structure setbacks, and a separate entrance that can't face the primary street. Historic overlays add design review. Confirm the current UDO specifics for your lot.

No. ADUs are governed locally. Indianapolis-Marion County has clear rules through its UDO; other Indiana cities and counties set their own. Confirm your specific jurisdiction.

Cold and snow statewide drive the envelope and roof. One thing to know: far-southwestern Indiana, around Evansville, is near the New Madrid and Wabash Valley seismic zones, so seismic design is a genuine consideration there. The rest of the state is low seismic. PSL Modular sets the spec from your site.

Yes. Indiana's lakes (and the broader Midwest second-home market) plus logistics/manufacturing workforce demand suit modular — IDHS-sealed units arrive fast and engineered for Indiana winters. The building is factory-inspected; your work is the site and local zoning.