Building permits are required for code-regulated work in Hennepin County, Minnesota, but the building official of the city where the parcel sits issues them, not the county12. Hennepin County does not administer countywide zoning, so each city sets its own zoning3. Septic permits come from the Hennepin County Health Authority for most addresses, though Dayton, Independence, Medina, Orono and Woodland run their own programs4.
At a glance
- Building permit
- Required for code-regulated work; apply to the municipal building official5
- Zoning
- No countywide zoning; rules vary by municipality36
- Septic permit
- Required before most installation, replacement, abandonment, alteration or repair work7
- Septic inspection
- County construction inspection before covering; private professional for existing-system reports8
- Owner-builder
- A qualifying owner may avoid contractor licensing, but not permits or inspections9
- RV or tiny home
- Tiny homes need code and local zoning approval; RV occupancy varies locally106
- Driveway access
- County access permit for a new driveway onto a county road; local roads go to their road authority11
Who to call
Health department
Hennepin County Environmental Health and Epidemiology
Subsurface Sewage Treatment System (septic) permits and enforcement in unsewered areas of Hennepin County, under county Ordinance 19
479 Prairie Center Drive, Eden Prairie, MN 55344
Building permits
City of Minneapolis Development Review (Construction Code Services)
Building permit applications, plan review, and inspections inside the City of Minneapolis, one example among the many separate city building departments inside Hennepin County
Public Service Building, 505 Fourth Ave. S., Room 320, Minneapolis, MN 55415
Contact details are copied from each office’s official page and were checked against it on October 12, 2026.
Off-grid gear
Going off-grid in Hennepin County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Hennepin County, Minnesota?
An owner or authorized agent must obtain a permit before beginning code-regulated construction, alteration, repair, demolition or a change of occupancy in Hennepin County5. Listed accessory structures and ordinary repairs may be exempt, so describe the project to the applicable building official before starting5. The Minnesota State Building Code supplies the minimum construction standard statewide, although municipal enforcement depends on local adoption12. In Hennepin County, permitted building work must remain accessible and exposed until approved, and every permitted project requires a final inspection13. Work cannot pass successive inspection points without the building official’s approval14. A qualifying owner-builder may avoid residential-contractor licensing when building for personal occupancy or retaining the property as a rental, but that licensing exemption does not remove applicable permits or inspections914. Agricultural buildings that meet the state definition are largely outside the State Building Code, so ask the city building official whether a barn or shed on farmland qualifies15.
Who issues building permits in Hennepin County, and how do you reach them?
Hennepin County is fully incorporated, and residential building permits come from municipal building departments rather than a county building department2. Municipal building permit offices serve Minneapolis16, Plymouth17, Edina18, Champlin19, Golden Valley20, New Hope21, Hopkins22. Hennepin County Environmental Health handles most septic systems separately; Dayton, Independence, Medina, Orono and Woodland operate their own septic programs under standards at least as strict as the county’s423. A building permit application must describe and locate the work, state its intended use and occupancy, identify the construction type and include required documents24. Building permit fees follow the issuing municipality’s schedule; plan-review charges and the state surcharge may also apply25.
Does Hennepin County have zoning?
Hennepin County does not administer countywide land-use zoning; municipal rules govern allowed uses and parcel development36. Municipal zoning offices serve Brooklyn Park26, Minnetonka27, Minneapolis28, Plymouth29, Eden Prairie30, Edina31, Champlin32, Golden Valley33, New Hope34, Hopkins35. Hennepin County Environmental Health handles most septic systems separately; Dayton, Independence, Medina, Orono and Woodland operate their own septic programs under standards at least as strict as the county’s423. Ask the parcel’s municipal planning office about setbacks, lot size, coverage, height and accessory dwellings6. Minneapolis accessory dwellings require a building permit and at least 300 square feet; detached units must be behind the main house and follow location-specific setbacks, including 10 feet from the habitable part of the house3637. These Minneapolis standards do not establish the rules elsewhere in Hennepin County6.
How do septic permits work in Hennepin County?
Hennepin County regulates most septic systems, but Dayton, Independence, Medina, Orono and Woodland run their own programs under standards that must meet or exceed county Ordinance 19438. Within the county Health Authority's jurisdiction, a permit is required before a system is installed, replaced, abandoned, altered, repaired, rejuvenated or extended, subject to limited repair exceptions7. Construction compliance inspections occur before the system is covered, with at least 24 hours' notice excluding weekends and holidays8. An existing-system compliance report must come from a private septic professional, and a home sale alone does not require a county inspection39. Only about 1.8% of county soils lack severe limits for a conventional drain field, so arrange a site evaluation early40.
Can you live in an RV or tiny home on your land in Hennepin County?
We could not confirm a single rule for long-term RV occupancy across Hennepin County; ask the parcel’s municipal planning office before relying on an RV as housing6. Brooklyn Park prohibits using a motor home as a residence on private property in the city41. A tiny house used as a dwelling must meet the Minnesota Residential Code, and municipal zoning controls its location, foundation type, stories and size10. Ask the parcel’s municipality for minimum house size and lot requirements, which vary locally4243. In unsewered Hennepin County, sewage must use an approved subsurface sewage treatment system (SSTS) or an MPCA-permitted system; untreated disposal is prohibited44. The ordinance recognizes privy vaults and other non-water-carried systems, but holding tanks require proof that an SSTS cannot feasibly be installed and are limited to replacing failing systems, addressing imminent public-health threats or serving buildings with limited water use4546.
What are the steps to build a home in Hennepin County?
- Identify the parcel's municipality, which handles building permits and zoning26.
- Confirm the proposed use, setbacks, lot standards and any floodplain review with municipal planning staff647.
- For an unsewered site, ask Hennepin County Environmental Health whether the county or one of the cities with its own program is the septic authority, then obtain the required design and permit448.
- Obtain county access approval for a new driveway onto a county road or county state-aid highway through the county e-permitting system, which requires an account and evidence of insurance; local-road access goes to the controlling city, township or municipality11.
- Submit the building application and required documents to the municipal official before work begins24.
- Keep permitted work exposed through required inspections, arrange the final building inspection and obtain occupancy approval before using a covered building1349.
What should you check before buying land in Hennepin County?
For unsewered land in Hennepin County, arrange a septic site evaluation early: only about 1.8% of county soils lack severe limits for a conventional drain field40. Hennepin County will not issue an SSTS permit in a floodway; flood-fringe placement requires that no location outside the floodplain exists and that all applicable requirements are met50. Minnesota generally requires a proposed-well notification and filing fee before water-supply well construction, rather than a general construction permit; statutory exceptions and delegated local authority can change the process51. In Bloomington, additional development in the RS-1 Large Lot Single-Family Residential District is prohibited unless public sewer and water services are available52. We could not confirm a countywide utility-connection rule; ask the parcel’s municipality before budgeting for off-grid water or sewage6.
Watch-outs
- The Minneapolis building office serves Minneapolis property only; use the office for the city where the parcel is located253.
- A septic permit expires 12 months after issuance and is not transferable7.
- A new Minneapolis building or a change in use or occupancy classification must pass applicable construction inspections and a final certificate-of-occupancy inspection54.
- Hennepin County does not issue driveway permits for local roads; the city, township or municipality controlling the road does55.
- In Edina, installing, altering, repairing or extending an individual sewage disposal system also requires a municipal plumbing permit56.
Sources
- 1300.0120 Permits, quoted and re-checked
- City of Minneapolis - Construction Permits (2026 county census)
- Hennepin County 2040 Comprehensive Plan: Comprehensive Planning Process, quoted and re-checked
- Septic systems, quoted and re-checked
- Minnesota Administrative Rules Chapter 1300.0120 — Permits, quoted and re-checked
- Hennepin County All-Jurisdiction Hazard Mitigation Plan, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- revisor.mn.gov, quoted and re-checked
- Fact sheet: Tiny Houses, quoted and re-checked
- Road permits, quoted and re-checked
- Overview of the Minnesota State Building Code, quoted and re-checked
- 1300.0210 Inspections, quoted and re-checked
- 1300.0210 Inspections, quoted and re-checked
- Minnesota Statutes § 326B.121, State Building Code; application and enforcement (Minnesota statewide rule), quoted and re-checked
- Minneapolis: Minneapolis Code § 85.220, Permit required (Hennepin County), quoted and re-checked
- Plymouth: Single Family Dwellings (Hennepin County), quoted and re-checked
- Edina: Building Inspections | Edina, MN (Hennepin County), quoted and re-checked
- Champlin: Building Permit Application (Hennepin County), quoted and re-checked
- Golden Valley: Building/Remodeling Permits (Hennepin County), quoted and re-checked
- New Hope: Permits (Hennepin County), quoted and re-checked
- Hopkins: Hopkins Code Sec. 8-137 - Permit required; exceptions (Hennepin County), quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- Minnesota Administrative Rules Chapter 1300.0120 — Permits, quoted and re-checked
- 1300.0160 FEES, quoted and re-checked
- Brooklyn Park: official source (Hennepin County), quoted and re-checked
- Minnetonka: Chapter 3: Zoning Regulations (Hennepin County), quoted and re-checked
- Minneapolis: Land Use Handbook (Hennepin County), quoted and re-checked
- Plymouth: Zoning Ordinance (Hennepin County), quoted and re-checked
- Eden Prairie: Code of Ordinances, Section 11.11 — R-1 One-Family Residential Districts (Hennepin County), quoted and re-checked
- Edina: Edina Code § 36-437—Requirements for lot areas and dimensions (Hennepin County), quoted and re-checked
- Champlin: Planning & Zoning Division (Hennepin County), quoted and re-checked
- Golden Valley: Planning Applications & Permits (Hennepin County), quoted and re-checked
- New Hope: official source (Hennepin County), quoted and re-checked
- Hopkins: Zoning | Hopkins, MN (Hennepin County), quoted and re-checked
- Accessory Dwelling Unit Application, quoted and re-checked
- Accessory Dwelling Unit Application, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- Septic systems, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Chapter 152: Zoning Code, quoted and re-checked
- Fact sheet: Tiny Houses, quoted and re-checked
- Fact sheet: Tiny Houses, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- 1300.0220 CERTIFICATE OF OCCUPANCY, quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- 2025 Minnesota Statutes, section 103I.205: Well Construction (Minnesota statewide rule), quoted and re-checked
- Bloomington: § 21.203.02 Large Lot Single-Family Residential (RS-1) District (Hennepin County), quoted and re-checked
- City of Minneapolis Development Review (Construction Code Services) (minneapolismn.gov)
- Certificate of Occupancy, quoted and re-checked
- Road permits, quoted and re-checked
- Edina: Building Inspections | Edina, MN (Hennepin County), quoted and re-checked
Written October 12, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.