Hennepin County, MN Permits — Who Issues What

A city-by-city building-permit system, with county authority limited to septic, county roads, and selected environmental-health programs

Best first step

Find the approvals for your parcel, not just a generic form.

Start by confirming whether the parcel is in an unincorporated area and whether county shoreland, sanitary, floodplain, or land-division review applies. A city or village may still administer the building permit.

Prefills Hennepin County, MN Checks authority by address

What are you building?

Choose a common project or enter any description on the next screen.

Detached garage Deck / porch Accessory dwelling unit (ADU)Fence Backyard hot tub Other project

How permitting works in Hennepin County

Hennepin County is made up of 45 cities and does not operate a general building department. Start with the city where the parcel is physically located for building, mechanical, plumbing, zoning, shoreland, and floodplain review. Hennepin County still administers most septic permits, permits work in county road rights-of-way, and licenses certain food, pool, and lodging facilities. Electrical and well authority can shift again to a city or Minnesota state agency, so the mailing address alone is not enough to choose an office.

Minnesota statewide code authority

Start with the authority question

Identify the parcel's city from the property record; a Minneapolis, Plymouth, or Bloomington mailing address does not by itself establish the permit authority.
Use that city's building and planning departments for structural work, additions, remodels, zoning, setbacks, and local shoreland or floodplain controls.
Check Minnesota DLI's electrical inspector directory because a city may issue its own electrical permits or leave them with the state.
For an unsewered property, determine whether Hennepin County or one of the cities with its own septic program administers the SSTS permit.
Contact Hennepin County Transportation only when driveway, utility, excavation, or obstruction work affects a county road or county right-of-way.
For a new or altered well, confirm whether Minnesota Department of Health or a delegated city program has authority.

A practical Hennepin County, MN sequence

Confirm the legal parcel, city boundary, street authority, sewer status, and any shoreland or floodplain overlay before selecting an application.
Open the city's current permit page and separate building, zoning, electrical, plumbing, and mechanical approvals instead of assuming one permit covers every trade.
If septic is involved, obtain the required county or city SSTS review before relying on a building permit; additions can trigger capacity or compliance review.
If the project touches a county road, submit the county access or right-of-way application in parallel with the city permit workflow.
Keep city, county, and state approvals together and schedule inspections with the agency that issued each permit.
For uncommon projects, confirm the issuing office directly before paying a fee because city, county, and state authority can overlap.

Official sources

Sources last verified 2026-07-18. Confirm the current form, fee, and jurisdiction before filing.

The catalog below organizes common county-level workflows. It is a preparation aid, not a claim that Hennepin County, MN issues every listed approval for every parcel. Verify the administering office with the official sources above.

Preparation library

Browse forms only when you need them

Search by project or approval. Official forms and adaptable state templates are labeled separately.

Showing 9 of 10 matching forms

Adaptable state template