Allegan County, Michigan
Fillmore Township is a township in Allegan County, Michigan. Fillmore Township adopts its own zoning, so inside its limits Fillmore Township’s rules apply, not the county’s. Septic permits inside Fillmore Township come from Allegan County (Allegan County Health Department, Environmental Health Division · (269) 673-5415). 8 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Allegan County page.
Land inside Fillmore township's unincorporated parts, which the township zoning ordinance covers
“no building or structure, or part thereof, shall hereafter be erected, constructed, demolished, removed, or altered, and no land use commenced or continued”
Zoning districts of Fillmore township
“the boundaries of fillmore township zoning districts are shown on a map adopted by the fillmore township board of trustees.”
R-1 single family residential district inside Fillmore township
minimum lot area: >= 20000 sq ft · minimum lot width: >= 100 ft
“r-1 single family 20,000 100’ 2.5 r-2 single family 12,000 80’”
“re rural estate 2 acres 200’ 2.5 35’ r-1 single family 20,000 100’”
“a-1 exclusive ag 20 acres 660’ 2.5 35’ 50’a 20/40’d 30’”
A-1 exclusive agriculture district inside Fillmore township
maximum building height: <= 35 ft · maximum stories: <= 2.5 stories
“a-1 exclusive ag 20 acres 660’ 2.5 35’ 50’a 20/40’d 30’”
“re rural estate 2 acres 200’ 2.5 35’ r-1 single family 20,000 100’”
Fillmore Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
On-site sewage disposal for land inside Fillmore township that is unserved by public or approved community sewer; the county health rules apply there
“in areas unserved by public or other approved community water and/or sewage facilities, the minimum lot areas required by this ordinance shall be increased to include any additional area deemed necessary by the appropriate allegan county health department requirements to insure safe water supply and/or adequate sewage disposal.”
We looked and could not find an official answer yet. Silence is not permission; ask Fillmore Township or Allegan County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Fillmore Township publishes no rule on the point, not that none exists. Allegan County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Fillmore Township means bringing your own water and power. The kit we’d start with:
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