Bolthole Index

Pennington County, Minnesota

Building permits, zoning and septic rules in Silverton Township, MN

Silverton Township, in Pennington County, Minnesota, is subject to the Minnesota State Building Code for work the code governs, but we could not confirm which local authority issues its building permits.12 Silverton Township zoning also could not be confirmed, while Pennington County requires septic permits for systems installed, replaced or repaired.34

At a glance

Building permit
Required for work governed by the state code; ask the county Auditor-Treasurer which building official serves Silverton Township25
Zoning
Silverton Township zoning could not be confirmed; ask the township or county before relying on a proposed use3
Septic permit
Required by Pennington County for installation, replacement or repair4
Water well
State notification and the applicable filing fee are generally required before construction6
Shoreland work
County approval applies to covered building, septic and land-alteration work in shoreland areas7

Who to call

Septic permits

Pennington Soil and Water Conservation District (SSTS Program)

Septic permits for installing, replacing or repairing a system in Pennington County

218-683-7075

201 Sherwood Ave S, Thief River Falls, MN 56701

Planning & zoning

Pennington Soil and Water Conservation District (Shoreland Program)

Shoreland permits and forms for buildings, additions, septic work, grading and filling

218-683-7075

201 Sherwood Ave S, Thief River Falls, MN 56701

Roads & driveways

Pennington County Highway Department (County Engineer's Office)

Approval for construction, driveways and culverts within Pennington County road right-of-way

218-683-7017

250 125th Avenue NE, Thief River Falls, MN 56701

Online permits →

Also useful

Pennington County Auditor-Treasurer's Office

County administration and secretary to the county board; starting contact when the local building or zoning authority is unclear

218-683-7000

101 Main Ave N, Thief River Falls, MN 56701

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

Off-grid gear

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

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Does Silverton Township have zoning, and what does that mean for RVs and tiny homes?

We could not confirm an adopted Silverton Township zoning ordinance, zoning districts, setbacks, minimum lot size or minimum dwelling size.3 Do not treat that gap as permission for an RV residence, accessory dwelling or manufactured home; the local rules for those uses could not be confirmed.8

A site-built tiny house used as a dwelling must follow the Minnesota Residential Code, and the state defines a tiny house as a dwelling of 400 square feet or less, excluding lofts.9 New manufactured homes installed for occupancy in Minnesota require inspection under the federal installation standards, but local placement rules in Silverton Township could not be confirmed.10 Ask the township and the Pennington County Auditor-Treasurer's Office about parcel-specific zoning before buying or placing a dwelling.35

Do you need a building permit in Silverton Township, Minnesota?

Work governed by the Minnesota State Building Code requires a building permit for construction, enlargement, alteration, repair, moving, demolition or a change of occupancy.2 The building official identifies the required inspections, and a final inspection is required for permitted work.11

We could not confirm which building official serves Silverton Township or whether a local enforcement agreement changes where an application is filed.2 The Pennington County Auditor-Treasurer's Office serves as secretary to the county board and is a practical county contact for identifying the correct local authority.5

Minnesota's State Building Code generally does not apply to qualifying agricultural buildings, subject to specified state-inspection and skylight provisions.12 The owner-builder provision is a contractor-licensing exemption for an owner who will occupy the property or retain it as a rental; it does not erase applicable building permits or inspections.13

How do septic permits work inside Silverton Township?

Pennington County requires a septic permit when a system in Silverton Township is installed, replaced or repaired.4 The Pennington Soil and Water Conservation District provides the county program materials.14

Submit the application with the required design documents and site evaluation, and do not begin work before approval.15 The published application lists a $100 septic permit fee, reduced to $25 if the applicant watches the SSTS video on the website.16 A system covered before inspection must be uncovered when the inspector directs, and the district may inspect before, during and after construction.17

Pennington County soils rate 0% without severe limitations for a conventional septic drain field, so budget for a careful site evaluation rather than assuming a conventional layout will work.18

What should you check for wells, shoreland and floodplains in Silverton Township?

Before construction of a water-supply well, a state notification and filing fee are generally required; a qualifying owner-installed drive-point well follows a different after-completion notice procedure.6

Pennington County's shoreland program applies within 300 feet of a stream or river and within 1,000 feet of a lake, pond or flowage.7 Covered building additions, septic work and grading or filling of more than 50 cubic yards require county shoreland approval.19 A house, fill, culvert or bridge in a regulated Minnesota floodplain requires a floodplain permit and must comply with the community floodplain ordinance.20 Ask the Pennington Soil and Water Conservation District to confirm the parcel's shoreland and floodplain status before designing the site.19

What is the safest order for building a home in Silverton Township?

First, ask Silverton Township and the Pennington County Auditor-Treasurer's Office to identify the zoning authority and building official for the parcel.35 Second, have the Pennington Soil and Water Conservation District confirm septic feasibility and whether shoreland rules apply.1419 Third, file the state well notification before drilling and obtain the required building approval before code-regulated work begins.62 Finally, schedule the inspections identified by the building official and complete the septic inspections required by the county program.1117

Who approves driveway access for land in Silverton Township?

A direct driveway connection to a Minnesota state highway requires a MnDOT access driveway permit before construction or modification.21 Construction that affects Pennington County road right-of-way requires prior approval from the County Engineer's Office.22 For a township road, ask Silverton Township because the available sources do not establish a township-road driveway rule.23

Watch-outs

  • Do not assume that the absence of a confirmed Silverton Township zoning ordinance means a parcel is unrestricted; ask the township and county before relying on an RV, tiny-home, manufactured-home or accessory-dwelling plan.38
  • Pennington County's septic fee reduction depends on watching the SSTS video, so confirm the current application procedure with the Soil and Water Conservation District before filing.1614
  • A shoreland or floodplain location can add approvals beyond the ordinary building and septic process.720

Sources

  1. Minnesota Statutes § 326B.121 (Silverton Township), quoted and re-checked
  2. Minnesota Code Administration Manual (Silverton Township), quoted and re-checked
  3. (2026 county census)
  4. Subsurface Sewage Treatment Systems (Silverton Township), quoted and re-checked
  5. Pennington County Auditor-Treasurer's Office (co.pennington.mn.us)
  6. revisor.mn.gov (Silverton Township), quoted and re-checked
  7. Shoreland Management (Silverton Township), quoted and re-checked
  8. Storage Sheds and the Minnesota State Building Code (Minnesota statewide rule), quoted and re-checked
  9. Fact Sheet: Tiny Houses (Silverton Township), quoted and re-checked
  10. Manufactured home information (Silverton Township), quoted and re-checked
  11. Minnesota Code Administration Manual (Silverton Township), quoted and re-checked
  12. Minnesota Statutes § 326B.121, State Building Code; application and enforcement (Minnesota statewide rule), quoted and re-checked
  13. revisor.mn.gov (Minnesota statewide rule), quoted and re-checked
  14. Pennington Soil and Water Conservation District (SSTS Program) (penningtonswcd.org)
  15. Pennington County Septic System Permit Application (Silverton Township), quoted and re-checked
  16. Pennington County Septic System Permit Application (Silverton Township), quoted and re-checked
  17. Pennington County Septic System Permit Application (Silverton Township), quoted and re-checked
  18. 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
  19. Pennington Soil and Water Conservation District (Shoreland Program) (penningtonswcd.org)
  20. Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
  21. MnDOT Access Management Manual, Chapter 4 (Minnesota statewide rule), quoted and re-checked
  22. Pennington County Highway Department (County Engineer's Office) (co.pennington.mn.us)
  23. Minnesota Statutes, section 160.18: Access to roads; approaches (Minnesota statewide rule), quoted and re-checked

Written October 9, 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.

Answers from the rulebook for Silverton Township

Rules another office applies inside Silverton Township

Silverton Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Building permitRequired

    Work inside Silverton Township that is regulated by the Minnesota State Building Code.

    • The official manual states that permits are required for construction, enlargement, alteration, repair, moving, demolition, or occupancy changes governed by the code.
    • The township or another local enforcement authority must administer the code for the permit process applicable to a particular project; the Silverton-specific enforcement arrangement was not located.
    • Agricultural buildings are subject to the statutory exceptions in Minn. Stat. § 326B.121, subdivision 1(c).
    “As stated in Minnesota Rules 1300.0120, permits are required to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure”
  • Owner-builder exemptionConditional

    Owner licensing exemption for residential construction or improvement inside Silverton township.

    • The owner must occupy or intend to occupy the property residentially, or retain ownership for rental after completion.
    • The exemption does not apply to construction or improvement for resale or speculation.
    • An owner improving more than one property within 24 months is presumed to be acting for speculation unless the properties are retained for rental.

    speculation presumption period: 24 months (More than one property, unless retained for rental.)

    “The license requirement does not apply to:”
  • Building code adoptedAdopted

    Buildings and structures governed by the Minnesota State Building Code inside Silverton township.

    • The State Building Code does not apply to agricultural buildings except for specified state inspections or rulemaking and required load-bearing support for certain translucent panels or skylights.
    • Local enforcement arrangements were not established by the sources for Silverton township.
    “The State Building Code is the standard that applies statewide”
    2 more reviewed findings on this topic
    • Adopted (with conditions) — Construction, reconstruction, alteration, repair, and use of buildings inside Silverton Township to the extent governed by the Minnesota State Building Code.
      “The State Building Code is the standard that applies statewide for the construction, reconstruction, alteration, repair, and use of buildings and other structures of the type governed by the code.”
    • Adopted — Buildings and structures inside Silverton Township that are governed by the Minnesota State Building Code.
      “The State Building Code is the standard that applies statewide for the construction, reconstruction, alteration, and repair of buildings and other structures of the type governed by the code, except as provided in Minnesota Statutes, section 326B.121.”
  • InspectionsRequired

    Permit-regulated construction inside Silverton Township under the Minnesota State Building Code.

    • The building official identifies required inspections for the permitted work.
    • Final inspection is required for all work for which a permit is issued.
    • The particular official responsible for inspections in Silverton Township was not located.
    “Construction or work for which a permit is required will be subject to inspections by the building official and the construction or work shall remain accessible and exposed for inspection purposes until approved.”
  • Certificate of occupancyRequired

    Use or occupancy of buildings and structures inside Silverton township governed by the Minnesota building code.

    • A municipality may optionally require certificates for U occupancies, accessory structures under the International Residential Code, or used manufactured homes moved into or within a jurisdiction.
    • A temporary certificate may be issued before all permitted work is complete if the occupied portion is safe.
    • The certificate may be suspended or revoked for error, incorrect information, or code or ordinance violations.
    “until the building official has issued a certificate of occupancy for the building or structure under this part.”
    One more reviewed finding on this topic
    • Required — Occupancy of buildings and structures inside Silverton Township governed by Minnesota Rules Chapter 1300.0220.
      “No building or structure may be used or occupied, and no change in the existing occupancy classification of a building or structure is allowed until the building official has issued a certificate of occupancy.”
  • Tiny homesLimited

    Tiny houses used as dwelling units inside Silverton Township.

    • Site-built tiny houses are regulated by the Minnesota State Building Code and must comply with the Minnesota Residential Code.
    • Prefabricated and modular tiny houses have separate state certification and inspection requirements.
    • All on-site work remains subject to local jurisdiction and inspections.
    • Recreational park trailers or park models are temporary recreational, camping, or seasonal units and not year-round dwellings.

    tiny-house floor area: <= 400 square feet or less excluding lofts (Minnesota Residential Code Appendix Q definition)

    “Appendix Q defines a tiny house as a dwelling 400 square feet or less in floor area excluding lofts.”
  • Manufactured homesLimited

    Manufactured homes installed for occupancy inside Silverton Township.

    • New manufactured homes installed in Minnesota for occupancy must be inspected under the Federal Installation Standards Programs.
    • Alterations require documentation for review by the state agency or local authority having jurisdiction before work begins.
    • Electrical alterations require a permit and inspection by a Minnesota electrical inspector.
    • Local zoning and land-use requirements may also apply, but Silverton Township's specific rules were not located.
    “All new manufactured homes installed in Minnesota for occupancy are required to be inspected according to the Federal Installation Standards Programs, Code of Federal Regulations (CFR) 3285 and 3286.”
  • Who permits septicMixed (with conditions)

    Subsurface sewage treatment systems inside Silverton Township.

    • Minnesota establishes minimum standards and requires local units of government to enforce applicable ordinances.
    • All counties must adopt compliant ordinances unless all towns and cities in the county have adopted them.
    • A local unit of government may adopt and enforce more restrictive requirements.
    • The specific Pennington County or Silverton Township administering office was not located.
    “The agency shall adopt rules containing minimum standards and criteria for the design, location, installation, use, maintenance, and closure of subsurface sewage treatment systems.”
    2 more reviewed findings on this topic
    • County — Septic systems inside Silverton Township; the cited page identifies Pennington County as requiring the permits and the Pennington SWCD as providing the program materials.
      “Pennington County requires permits for septic systems being installed, replaced or repaired. Download the PDF below or come into the office for a permit application.”
    • County — Septic permitting and compliance administration inside Silverton township through the Pennington Soil and Water Conservation District under Pennington County's septic program.
      “Pennington County requires permits for septic systems”
  • Septic permitRequired

    Installation, replacement, or repair of septic systems inside Silverton township under the Pennington County septic program.

    • Work must not start without a permit.
    • The application must conform to the Pennington County ordinance and applicable state codes.
    • The permit application lists a $100 permit fee, reduced to $25 if the applicant watches the SSTS video on the website.

    permit fee: 100 USD ($25 if the applicant watches the SSTS video on the website.)

    “Permit Fee - $100 * $25 if you watch SSTS video on website”
    One more reviewed finding on this topic
    • Required — Installation, replacement, or repair of septic systems inside Silverton Township.
      “Pennington County requires permits for septic systems being installed, replaced or repaired.”
  • Septic inspectionRequired

    All new construction or replacement of subsurface sewage treatment systems inside Silverton Township.

    • The manner and timing of inspection may be determined by the applicable local ordinance.
    • For a bedroom addition, a local unit generally may not issue a building permit or variance without inspection and a certificate of compliance or notice of noncompliance.
    • A temporary waiver may apply to applications made November 1 through April 30 if inspection occurs by the following June 1 and documentation is submitted within 15 days.
    • The bedroom-addition rule does not apply where the local unit has no ordinance requiring a building permit for the bedroom addition.
    “An inspection shall be required for all new construction or replacement of a system to determine compliance with applicable requirements. The manner and timing of inspection may be determined by the applicable local ordinance.”
    2 more reviewed findings on this topic
    • Required — Septic-system construction and compliance inside Silverton Township under the Pennington County program.
      “If any septic system is covered before being inspected by a State licensed inspector, it shall be uncovered upon the direction of the inspector.”
    • Required — Septic construction and compliance inspections inside Silverton township under the Pennington County septic program.
      “conduct inspections before, during and after construction”
  • Well permitRequired

    Construction of a water-supply well inside Silverton Township, Pennington County, Minnesota.

    • Before construction, the proposed-well notification must be filed with the Minnesota commissioner on the prescribed form and the applicable fee must be filed.
    • The property owner, the property owner's agent, or the licensed contractor where the well is to be located must file the well notification.
    • If construction is unsuccessful, a new notification is not required unless information relating to the successful well has substantially changed.
    • A notification is not required before construction of a temporary boring.
    • For a drive-point water-supply well personally constructed by an individual on property owned or leased by that individual for farming or agricultural purposes or as the individual's place of abode, the individual must notify the commissioner by mailing the prescribed notification within ten days after completion; no fee may be charged.
    • When operation of the well requires a Minnesota Department of Natural Resources appropriation permit, construction may not begin until the required location, aquifer, requested maximum daily, seasonal, and annual pumpage information, and other requested information are submitted to the commissioner of natural resources and preliminary approval is received.
    • The state notification requirement preempts local permits and notifications; a county or city may require a local permit or notification only if the commissioner has delegated permitting or notification authority under Minnesota Statutes section 103I.111.
    • The notification fee for construction of a water-supply well is $325, including the state core function fee.

    water-supply well notification fee: 325 USD (Includes the state core function fee.)

    “a person may not construct a water-supply, dewatering, or environmental well until a notification of the proposed well [...] is filed with the commissioner”
    2 more reviewed findings on this topic
    • Limited — Water-supply wells inside Silverton Township.
      “A well must not be constructed, deepened through a confining layer, or have casing installed or removed below the frost line until notification is made to the commissioner.”
    • Limited — Water-supply, dewatering, or environmental wells inside Silverton Township.
      “Except as provided in paragraph (d), a person may not construct a water-supply, dewatering, or environmental well until a notification of the proposed well on a form prescribed by the commissioner is filed with the commissioner with the filing fee in section 103I.208, and, when applicable, the person has met the requirements of paragraph (e).”
  • Agricultural exemptionAvailable (with conditions)

    Agricultural buildings inside Silverton township that are otherwise within the scope of the Minnesota State Building Code.

    • The State Building Code does not apply to agricultural buildings except for state inspections or rulemaking authorized by specified statutes and the stated support requirement for translucent panels or skylights.
    “does not apply to agricultural buildings except:”
  • Subdividing landRegulated (with conditions)

    Subdivision activity inside Silverton Township subject to Minnesota shoreland and subdivision standards.

    • Each lot must be suitable in its natural state for the proposed use with minimal alteration.
    • Subdivisions creating five or more lots or parcels of 2-1/2 acres or less must be processed as plats under Minnesota Statutes, chapter 505.
    • In areas without public sewer and water, approval requires domestic water supply and soil-absorption sewage treatment for every lot.
    • Lots requiring holding tanks must not be approved.

    threshold: 5 or more lots or parcels of 2-1/2 acres or less

    “All subdivisions that create five or more lots or parcels that are 2-1/2 acres or less in size must be processed by local governments as plats in accordance with Minnesota Statutes, chapter 505.”
  • Building in a floodplainLimited

    Development inside Silverton Township that lies within a regulated shoreland/floodplain area and requires the county permit forms.

    • The cited page defines shoreland as within 300 feet of a stream or river or 1,000 feet from a lake, pond, or flowage.
    • The page states that shoreland, land-alteration, and floodplain permits and forms are available from the SWCD.
    • The page separately states that the Pennington County Shoreland Ordinance requires permits for buildings, sewage-treatment work, and grading/filling over 50 cubic yards within shoreland areas.

    stream or river buffer: 300 feet · lake, pond, or flowage buffer: 1000 feet · grading/filling threshold: > 50 cubic yards

    “Landowners who are anticipating to build within any shoreland area must apply for a permit to ensure proper setbacks and design. This includes construction of decks, buildings or building additions, replacing/repairing or installing a new septic system, altering the land, or building or adding on a structure.”
  • Permit feesPublished (with conditions)

    Pennington County septic permit applications for property inside Silverton township.

    • The fee applies to the septic permit application identified in the official form; the form does not establish fees for building, zoning, driveway, or other permits.

    septic permit fee: 100 USD ($25 if the applicant watches the SSTS video on the website.)

    “Permit Fee - $100 * $25 if you watch SSTS video on website”
  • Permit processPublished (with conditions)

    Pennington County septic permitting for property inside Silverton township.

    • Submit the application with the required design documents and site evaluation.
    • Work must not start before permit approval.
    • The approved design must be followed.
    • SWCD may inspect before, during, and after construction.
    “The following documents must be included:”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Silverton Township or Pennington County directly.

  • Local zoning — Zoning adopted and administered by Silverton township.
  • Zoning districts — Zoning districts inside Silverton Township.
  • Minimum dwelling size — Residential dwellings inside Silverton Township.
  • Minimum lot size — Residential lots inside Silverton Township.
  • Setbacks — Structures inside Silverton Township.
9 more unanswered
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Accessory dwellings
  • Off-grid sanitation
  • Mandatory utility hookup
  • Driveway access
  • Short-term rentals

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

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