Hennepin County, Minnesota
Greenfield is a city in Hennepin County, Minnesota. Greenfield adopts its own zoning, so inside its limits Greenfield’s rules apply, not the county’s. Septic permits inside Greenfield come from Hennepin County. 9 rules below are quoted from official sources and independently re-checked, most recently on November 5, 2026. Rules for unincorporated land are on the Hennepin County page.
Construction governed by Greenfield City Code Chapter 150 inside Greenfield city limits.
“The Minnesota State Building Code is hereby incorporated in this chapter as if fully set out herein.”
Land within Greenfield city limits.
“ZONING. The regulation of the use of land within the city pursuant to M.S. Chapter 462, as it may be amended from time to time, and Chapter 152 of this code.”
All land within Greenfield city limits.
“These regulations shall apply to all land within the boundaries of the city.”
Construction of a driveway or street entrance inside Greenfield city limits.
“A driveway or street entrance permit shall be required in the City of Greenfield. Applicants shall provide the city information required on the permit application and shall receive permission before constructing the driveway or street entrance.”
Work governed by Greenfield City Code Chapter 150 inside Greenfield city limits.
“Permit fees shall be assessed for work governed by this code in accordance with the fee schedule adopted by the municipality in code Section 9.02.”
Septic-related construction and associated building-permit processing inside Greenfield city limits.
application-processing time: 12-14 days
“Once the City has been notified of your approval the City can begin processing your building permit. You should allow approx. 12 - 14 days for the completion of the application process.”
Greenfield does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Individual sewage disposal systems inside Greenfield city limits.
“Individual sewage disposal system – Issued by Hennepin County”
An individual sewage treatment system inside Greenfield city limits.
application-processing time: 12-14 days
“A septic permit must be obtained before beginning any activity requiring a permit under Hennepin County Ordinance No. 19 – Individual Sewage Treatment Systems Standards.”
Well construction or installation inside Greenfield city limits.
“Permits shall be required for the following constructions and installations. Plumbing, HVAC Well – Issued by Minnesota Department of Health”
We looked and could not find an official answer yet. Silence is not permission; ask Greenfield or Hennepin 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 Greenfield publishes no rule on the point, not that none exists. Hennepin County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Greenfield means bringing your own water and power. The kit we’d start with:
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