Bolthole Index

Washington County, Minnesota

Zoning, building permits and septic rules in Stillwater, Minnesota

Stillwater is a city in Washington County, Minnesota. Stillwater adopts its own zoning, so inside its limits Stillwater’s rules apply, not the county’s. 7 rules below are quoted from official sources and independently re-checked, most recently on October 18, 2026. Rules for unincorporated land are on the Washington County page.

Answers from the rulebook for Stillwater

Stillwater’s own rules

  • Building permitRequired

    Listed building projects inside Stillwater city limits, including new construction.

    • The published list is nonexclusive; many projects require plan review.
    • Permit fees are paid when the permit is issued.
    “Building Permits are required for many building projects, including new construction, additions, structural changes, decks, finished basements, pools, demolition, roofing, siding, and window replacement. Many projects require a plan review.”
  • Building code adoptedAdopted (with conditions)

    Construction, alterations, and building use within Stillwater city limits.

    • The city page describes enforcement of the building code and related ordinances.
    “The Building Inspections Division is responsible for the application and enforcement of the building code and related ordinances regulating construction, alterations and the use of buildings within the city.”
  • Local zoningPresent (with conditions)

    All properties inside Stillwater city limits.

    • Uses may be outright permitted, require a special or conditional use permit, or be prohibited depending on zoning district.
    “Each property within the City of Stillwater is subject to the Stillwater Zoning Code. The Zoning Code identifies uses that are outright permitted, permitted by special or conditional use permit, and those that are not allowed in each zoning district.”
  • Zoning districtsPublished (with conditions)

    Properties inside Stillwater city limits.

    • Permitted, conditional, and prohibited uses depend on the applicable zoning district.
    “Each property within the City of Stillwater is subject to the Stillwater Zoning Code. The Zoning Code identifies uses that are outright permitted, permitted by special or conditional use permit, and those that are not allowed in each zoning district.”
  • Lot coverageDistrict specific (with conditions)

    Properties inside Stillwater city limits.

    • The applicable maximum depends on the property's zoning district.
    “Each zoning district further identifies dimensional standards, such as maximum lot coverage and structural setbacks, for properties.”
  • Subdividing landRegulated (with conditions)

    Dividing raw land or re-subdividing parcels inside Stillwater city limits.

    • Subdivisions submitted for approval must comply with Section 32 of the City Code.
    “All subdivisions of land submitted for approval mu comply with Section 32 of the City Code.”
  • Permit feesPublished (with conditions)

    City permits and applications inside Stillwater city limits.

    • Fees may vary by permit or application type.
    • Building permit fees are paid when the permit is issued.
    “Permit fees are paid at the time the permit is issued. Fee Schedule”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Stillwater or Washington County directly.

  • Owner-builder exemption — Owner-built residential work inside Stillwater city limits.
  • Inspections — Building work inside Stillwater city limits.
  • Certificate of occupancy — Occupancy of buildings inside Stillwater city limits.
  • Minimum dwelling size — Principal dwellings inside Stillwater city limits.
  • Setbacks — Principal residential structures inside Stillwater city limits.
14 more unanswered
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain

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 Stillwater publishes no rule on the point, not that none exists. Washington County’s page lists the county offices to call.

Off-grid gear

Going off-grid in Stillwater means bringing your own water and power. The kit we’d start with:

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