Building permits are required for code-regulated work in Hennepin County, Minnesota, but the city building official where the parcel sits issues them—not the county12. Zoning also varies by city, while Hennepin County Environmental Health administers septic requirements within its jurisdiction34.
At a glance
- Building permit
- Required for code-regulated work; apply to the city building official1
- Zoning
- Set and reviewed by the city where the parcel is located3
- Septic permit
- Required for most installation, replacement, abandonment, alteration or repair work5
- Septic inspection
- Required during construction before the system is covered6
- Owner-builder
- A qualifying owner may avoid contractor licensing, but not permits or inspections7
- RV or tiny home
- No countywide occupancy answer; ask the parcel's city planning office3
- Driveway access
- The road authority must permit new access; the county handles county roads8
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 September 29, 2026.
Do you need a building permit in Hennepin County, Minnesota?
Yes. An owner or authorized agent must apply to the building official before beginning construction, enlargement, alteration, repair, relocation, demolition, an occupancy change or other code-regulated work in Hennepin County1. Listed accessory structures and ordinary repairs may be exempt, so describe the project to the official before starting1. Hennepin County is fully incorporated, meaning the city where the parcel sits administers the permit2. A qualifying owner-builder may avoid residential-contractor licensing when building for occupancy or retention as a rental, but not permits or inspections7.
Who issues building permits in Hennepin County, and how do you reach them?
There is no single Hennepin County building department for residential projects; start with the building department for the parcel's city2. Minneapolis Development Review is the correct office only for property inside Minneapolis, where it handles applications, plan review and inspections9. The application must locate and describe the work, state its intended use and occupancy, identify construction type and include required documents10. The building official reviews it and may reject a nonconforming application with reasons10. Fees are set locally, so request the current calculation from the issuing city11.
Does Hennepin County have zoning?
Land use in Hennepin County is zoned and reviewed city by city rather than through one county zoning office3. The parcel's city therefore controls allowed uses, setbacks, minimum lot or dwelling size, lot coverage, height, accessory dwellings and RV or tiny-home placement3. We could not confirm one countywide rule for those questions, so obtain written answers from the city planning office. Building-code approval does not override local zoning12. Building a house, placing fill or installing a culvert or bridge in a regulated floodplain also requires a locally administered floodplain permit13.
How do septic permits work in Hennepin County?
Hennepin County Environmental Health administers septic permits, inspections, records and enforcement within county jurisdiction; a city administering its own SSTS program must be at least as strict as county Ordinance 194. A permit is required before a system is installed, replaced, abandoned, altered, repaired, rejuvenated or extended, subject to narrow repair exceptions5. Construction must be inspected before covering, with at least 24 hours' notice excluding weekends and holidays6. A property transfer alone does not require a county inspection6. Only about 1.8% of county soils lack severe limits for a conventional drain field, so arrange an early site evaluation14.
Can you live in an RV or tiny home on your land in Hennepin County?
We could not confirm a countywide rule allowing long-term RV or tiny-home occupancy in Hennepin County. Ask the parcel's city planning office about occupancy, parking, setbacks and utilities before buying or placing a unit3. Minnesota's campground rule does not answer the single-household question; it covers areas accommodating five or more tents or recreational camping vehicles15. Hennepin County permits holding tanks only when a permitted SSTS cannot feasibly be installed and the proposal fits limited replacement, health-threat or low-water-use circumstances16. A tiny home still needs applicable municipal building and zoning approvals13.
Building a home in Hennepin County: the steps, in order
- Identify the parcel's city, which handles building permits and zoning23.
- Confirm the use, setbacks, lot standards and floodplain review with city planning313.
- For an unsewered site, contact Hennepin County Environmental Health about the evaluation, design, reserve area and septic permit5.
- Determine who controls the road; Hennepin County permits access to county roads, while the local authority handles local roads8.
- Submit the building application and documents to the city official before work begins10.
- Keep permitted work exposed until each required inspection is approved17.
What should you check before buying land in Hennepin County?
Confirm the city, then obtain written zoning and permit guidance for the intended house, accessory structures, RV use or tiny home32. For unsewered land, make a septic evaluation and reserve area part of due diligence because only about 1.8% of soils lack severe limits for a conventional drain field14. The county will not issue an SSTS permit in a floodway; flood-fringe placement is allowed only when no location outside the floodplain exists and all requirements are met18. Verify who controls the road because that authority issues the access permit8. We could not confirm countywide water, sewer-connection or private-well rules; ask the city and county Environmental Health.
Watch-outs
- The Minneapolis building office serves Minneapolis property only; use the office for the city where the parcel is located29.
- A septic permit expires 12 months after issuance, and holding tanks, Type IV and V systems, and MSTS systems also require operating permits5.
- Hennepin County does not issue driveway permits for local roads; the city, township or municipality controlling the road does8.
Sources
- Minnesota Administrative Rules Chapter 1300.0120 — Permits, quoted and re-checked
- City of Minneapolis - Construction Permits (2026 county census)
- City of Minneapolis - Construction Permits (2026 county census)
- 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
- Sec. 326B.805 MN Statutes (Minnesota statewide rule), quoted and re-checked
- Road permits, quoted and re-checked
- City of Minneapolis Development Review (Construction Code Services) (minneapolismn.gov)
- Minnesota Administrative Rules Chapter 1300.0120 — Permits, quoted and re-checked
- Minnesota State Building Code Adoption Guide (Minnesota statewide rule), quoted and re-checked
- Minnesota State Building Code Adoption Guide (Minnesota statewide rule), quoted and re-checked
- Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- 2025 Minnesota Statutes, Chapter 327 (Minnesota statewide rule), quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
- 1300.0210 INSPECTIONS (Minnesota statewide rule), quoted and re-checked
- Subsurface sewage treatment systems standards ordinance, quoted and re-checked
Written September 29, 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.