Le Sueur County, Minnesota
Waterville is a city in Le Sueur County, Minnesota. Waterville adopts its own zoning, so inside its limits Waterville’s rules apply, not the county’s. Septic permits inside Waterville come from the county and state together. 12 rules below are quoted from official sources and independently re-checked, most recently on November 5, 2026. Rules for unincorporated land are on the Le Sueur County page.
Land and structures within Waterville city corporate limits.
“This chapter shall be known as the Waterville Zoning Ordinance”
Zoning districts within Waterville city limits.
districts: AH, R1, R2, R3, RMN, B1, B2, B3, B4, I1, I2, FP, and S Shoreland Overlay
“AH - Agriculture/Holding District; [...] S Shoreland District Overlay.”
Dwellings in Waterville city, except dwellings in a manufactured-home park or the AH District.
minimum dwelling width: >= 20 feet (unless in a manufactured home park or the AH District) · permanent foundation: true (unless in a manufactured home park or the AH District)
“All dwellings must be at least 20 feet in width and on a permanent foundation unless in a manufactured home park or the AH District.”
Tents and camper trailers outside established campgrounds in Waterville city.
maximum temporary dwelling duration: <= 21 days per year (Tents and camper trailers not in established campgrounds)
“Tents and camper trailers not in established campgrounds may be used as temporary dwelling for up to 21 days per year by permit only.”
Tents and camper trailers outside established campgrounds in Waterville city.
maximum duration: <= 21 days per year (Tents and camper trailers not in established campgrounds)
“The Zoning Administrator shall issue a permit upon showing of adequate provision for garbage and wastewater collection.”
Individual sewage disposal systems within Waterville city limits.
“without first obtaining a permit therefor from the Council or its authorized representative [...] fee therefor established by permitting agency (LeSueur County.)”
Installation, alteration, repair, or extension of an individual sewage disposal system in Waterville city.
permit validity: 6 months (from date of issue)
“No person shall install, alter, repair, or extend any individual sewage disposal system in the city without first obtaining a permit”
Private sewage treatment facilities for existing uses and eligible new AH Zone uses inside Waterville city limits.
“All existing uses and all new uses in the AH Zone that are allowed to have private sewage treatment or water facilities shall do so in compliance with the regulations”
New construction and development inside Waterville city limits.
“All new construction and development shall be served by city water and sanitary sewer unless determined by the City Council to be in an area not feasible to extend services.”
Subdivision of lots or parcels inside Waterville city limits.
“A lot or parcel may be subdivided to more lots if this chapter and Chapter 151 are complied with.”
City water and sanitary-sewer connection permits inside Waterville city limits.
residential water-main connection permit fee: 1500 USD · residential sewer connection permit fee: 1500 USD
“The fee for each residential permit shall be $1,500 for a water main connection permit and $1,500 for a residential sewer connection permit.”
City zoning/building permit applications and City water/sewer service installations inside Waterville city limits.
“Application for a water or sewer service installation and for water service shall be made to the Administrator-Clerk on forms prescribed by the Council and furnished by the city.”
We looked and could not find an official answer yet. Silence is not permission; ask Waterville or Le Sueur 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 Waterville publishes no rule on the point, not that none exists. Le Sueur County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Waterville means bringing your own water and power. The kit we’d start with:
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