Start with the parcel number, municipality, and applicable zoning authority. Request building permits and inspections from the city, village, town, or county office responsible for the work. Compare the current house, addition, deck, garage, accessory structure, conversion, and changed use with the permit trail. County Planning and Zoning administers land-use responsibilities that can include shoreland, floodplain, and private-sewage review, while municipal building departments can maintain separate records. Assessment and GIS information help identify the site but do not replace a survey or final inspection.
For an onsite system, gather the sanitary permit, certified-soil information, approved plan, installation and inspection records, revisions, reconnection or repair papers, and maintenance documentation. Waterfront and near-water property may require shoreland zoning review even when municipal construction approval also applies. Retain setback, variance, floodplain, grading, erosion, wetland, elevation, claim, and repair evidence specific to the parcel. Lake Michigan or inland-water proximity alone does not prove flooding, bluff instability, wetland boundaries, or a nonconforming structure. Ask the correct office about the existing improvement rather than generalizing from the shoreline.
Use those verified records to compare routes. A listing could involve municipal and county permit closeout, private-system service, a documented shoreland or drainage issue, cleaning, repairs, photography, appointments, and ongoing taxes, heating, utilities, insurance, and debt costs. For an as-is proposal, read price, deposit, inspection and termination clauses, proof of funds, title objections, expense allocation, extension rights, possession, and belongings. Ask who must obtain a sanitary document, land-use clearance, survey, or municipal final. Put active safety and water-protection work ahead of cosmetic or speculative projects.
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