Bolthole Index

Swift County, Minnesota

Building permits, zoning and septic rules in Benson, Minnesota

Benson, Minnesota requires building permits for work regulated by the Minnesota State Building Code, which the city has adopted.12 Benson sets its own zoning inside city limits in Swift County; septic permits and inspections remain with Swift County Environmental Services.34 Start with the city building official for construction and the Zoning Administrator at City Hall for the parcel’s district.56

At a glance

Building permits
City building official issues building permits for code-regulated work51
Zoning
City zoning; district map at City Hall36
Septic permits
Swift County Environmental Services4
RV living
Floodplain RV exemption is conditional; general residential occupancy unconfirmed7
Manufactured-home size
Single-family manufactured-home units need at least 750 square feet8
Residential lot size
R-1 principal structures: 10,800 square feet and 80-foot lot width9
Owner-builder
State contractor-license exemption for qualifying owners; building permits still apply10

Who to call

Building permits

City of Benson Building Official / City Hall

City building permits, plan reviews and inspections; City Hall contact for reaching the building official and Zoning Administrator

320-843-4775

[email protected]

1410 Kansas Avenue, Benson, MN 56215

Septic permits

Swift County Environmental Services

Septic system inspections and septic permit issuance in Swift County, including Benson

(320) 843-2356

1000 Industry Drive P.O. Box 207 Benson, MN 56215

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 Benson means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Benson, MN?

Benson has adopted the Minnesota State Building Code, and the city building official issues building permits for work the code regulates.15 The state requirement covers construction, additions, alterations, repairs, moving, demolition and occupancy changes, subject to exemptions for specified work.2 A permit exemption does not excuse a violation of zoning or other applicable rules.2

Benson’s application calls for separate permits for plumbing, heating, fireplace installation, electrical work and septic installation; a building permit does not cover the whole project.11 The city application requires payment of building permit fees and professional-consultant review costs before issuance.11 Ask City Hall for the current fee schedule and the building official’s determination of which building permits your project needs.511

Who issues building permits in Benson, and how do you reach them?

The City of Benson Building Official handles building permits, while the city’s building inspections department performs plan reviews and inspections for construction-code compliance.5 Call City Hall at 320-843-4775 or email [email protected] to reach the city office; City Hall is at 1410 Kansas Avenue, Benson, MN 56215.5 The building webpage asks applicants to call for an appointment.5

Benson’s official zoning map is maintained by the Zoning Administrator at City Hall, so ask that office to identify the district before preparing a site plan.6 For a property outside city limits, use the Swift County guide: the county zoning ordinance applies to unincorporated land.12 Septic permitting stays with Swift County Environmental Services for addresses in Benson.4

Does Benson have zoning, minimum lot sizes and setbacks?

Benson has city zoning, with the official district boundaries shown on the zoning map kept at City Hall.36 In Benson’s R-1 residential district, principal structures require a minimum lot area of 10,800 square feet and a minimum lot width of 80 feet.9 The R-1 principal-structure yard standards are 40 feet at the front, 10 feet at the side and 30 feet at the rear, with special provisions modifying some front yards.13

Benson’s R-1 principal structures have a maximum height of 42 feet; accessory buildings are limited to 80% of the principal structure’s height.14 These are district-specific standards, so ask the Zoning Administrator to confirm the parcel’s district and applicable front-yard provisions before choosing a house footprint.613

How do septic permits and water work inside Benson?

Swift County Environmental Services handles septic system inspections and septic permit issuance in Benson.4 Contact that office at (320) 843-2356; the office address is 1000 Industry Drive P.O. Box 207 Benson, MN 56215.15 Minnesota requires compliance inspections for new or replacement subsurface sewage treatment systems, with inspection timing governed by the applicable local ordinance.16

We could not confirm when a new Benson home must connect to municipal water or sewer; ask City Hall about utility service before committing to a private system. For a private water-supply well, Minnesota generally requires notification and a filing fee before construction rather than a general well-construction permit.17 That state notification rule does not establish whether Benson allows a private well at your address; confirm the city’s utility requirements with City Hall.

Can you live in an RV or tiny home in Benson?

Benson’s verified RV provision concerns floodplain districts, not a general right to live in an RV on any residential lot.7 To qualify for that floodplain exemption, an RV must have a current highway-use license, remain highway-ready, use only quick-disconnect utilities, have no permanent structural additions and satisfy the underlying zoning district’s permitted uses.7 Structural additions or an accessory structure costing more than $500 remove the exemption.7 Ask the Zoning Administrator whether residential RV occupancy is allowed at the specific address.

Benson requires at least 750 square feet for a single-family manufactured-home unit; that standard does not establish a minimum for every dwelling type.8 Minnesota tiny houses used as dwellings must meet the applicable residential code and local zoning requirements.18 We could not confirm Benson’s specific tiny-home or accessory-dwelling permission; take the proposed design and use to the Zoning Administrator before buying.

Building a home in Benson: what should you do first?

Start by asking Benson’s Zoning Administrator to identify the parcel’s district on the official zoning map, then confirm the applicable lot dimensions and yards.6913 Have the city building official review the proposed construction; Benson’s application asks for owner, contractor, project, use and construction-type information, with site and construction plans required for listed work types.511 If the property will use septic, arrange the separate septic permit with Swift County Environmental Services.4

Pay the city’s required fees and review costs before building permit issuance.11 Benson’s application says a building permit becomes void if work does not begin within 180 days or is suspended or abandoned for 180 days.19 A qualifying owner-builder can use Minnesota’s contractor-license exemption when occupying the home or retaining it for rental, but the exemption does not waive building permits or inspections and excludes resale or speculative work.10

Watch-outs

  • Benson’s floodplain RV exemption depends on the underlying zoning allowing the use; highway-ready status alone is insufficient.7
  • Construction and fill in regulated floodplain areas require floodplain approval; ask Benson’s Zoning Administrator about the site before designing the project.20
  • A new or modified driveway connecting directly to a Minnesota state highway requires a MnDOT access driveway permit.21
  • We could not confirm Benson’s off-grid sanitation allowance or mandatory municipal utility connection rule; ask City Hall and Swift County Environmental Services before buying a system.515

Sources

  1. § 150.01 MINNESOTA STATE BUILDING CODE ADOPTED (Benson), quoted and re-checked
  2. Minnesota Administrative Rules, Part 1300.0120 — Permits (Minnesota statewide rule), quoted and re-checked
  3. § 154.057 ZONING MAP (Benson), quoted and re-checked
  4. Swift County Environmental Services, quoted and re-checked
  5. City of Benson Building Official / City Hall (cityofbensonmn.gov)
  6. § 154.057 ZONING MAP (Benson), quoted and re-checked
  7. § 154.203 MANUFACTURED HOMES AND MANUFACTURED HOME PARKS AND PLACEMENT OF RECREATIONAL VEHICLES (Benson), quoted and re-checked
  8. § 150.30 APPLICABILITY OF SUPPLEMENTARY STANDARDS TO MANUFACTURED HOMES (Benson), quoted and re-checked
  9. § 154.059 HEIGHT LIMITATIONS, AREA, FRONTAGE, AND YARD REQUIREMENTS (Benson), quoted and re-checked
  10. revisor.mn.gov (Minnesota statewide rule), quoted and re-checked
  11. City of Benson Building Permit Application (Benson), quoted and re-checked
  12. swiftcounty.gov, quoted and re-checked
  13. § 154.059 HEIGHT LIMITATIONS, AREA, FRONTAGE, AND YARD REQUIREMENTS (Benson), quoted and re-checked
  14. § 154.059 HEIGHT LIMITATIONS, AREA, FRONTAGE, AND YARD REQUIREMENTS (Benson), quoted and re-checked
  15. Swift County Environmental Services (swiftcounty.gov)
  16. 2025 Minnesota Statutes, section 115.55: Subsurface Sewage Treatment Systems (Minnesota statewide rule), quoted and re-checked
  17. 2025 Minnesota Statutes, section 103I.205: Well Construction (Minnesota statewide rule), quoted and re-checked
  18. Tiny Houses and the 2020 Minnesota Residential Code (Minnesota statewide rule), quoted and re-checked
  19. § 150.30 APPLICABILITY OF SUPPLEMENTARY STANDARDS TO MANUFACTURED HOMES (Benson), quoted and re-checked
  20. Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
  21. MnDOT Access Management Manual, Chapter 4 (Minnesota statewide rule), 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.

Answers from the rulebook for Benson

Benson’s own rules

  • Building permitRequired

    Manufactured homes and other work requiring a City of Benson building permit.

    • The manufactured-home provisions expressly require a building permit and any other required permits.
    • Separate permits are required for plumbing, heating, fireplace installation, electrical work, and septic installation.
    • A permit becomes void if authorized work is not commenced within 180 days, or is suspended or abandoned for 180 days.

    permit commencement deadline: 180 days (after issuance) · permit abandonment deadline: 180 days (after work commences)

    “A building permit and any other required permits shall be obtained for the home.”
  • Building code adoptedAdopted

    Building work inside Benson city limits.

    • The city adopts the Minnesota State Building Code by reference.
    • Optional chapters and appendices listed in § 150.01(E) are separately adopted.
    “The Minnesota State Building Code [...] is hereby adopted by reference with the exception of the optional chapters, unless specifically adopted in this section.”
  • Local zoningPresent

    Land inside Benson city limits.

    • The city zoning map is maintained in the office of the Zoning Administrator at City Hall.
    “The boundaries of the above districts are hereby established on that certain map entitled the “Zoning Map of Benson, Minnesota.””
  • Zoning districtsPublished

    Zoning districts inside Benson city limits.

    • The code identifies Agricultural, R-1, R-2, R-3, B-1, B-2, B-3, M-1, I-1, I-2, and I-3 districts in the dimensional table.
    • The official zoning map is maintained by the Zoning Administrator at City Hall.
    “The boundaries of the above districts are hereby established on that certain map entitled the “Zoning Map of Benson, Minnesota.” The map is properly approved and in the office of the Zoning Administrator in the City Hall, and is hereinafter referred to as the “Zoning Map.””
  • Minimum dwelling sizeSpecified

    Single-family manufactured-home units placed in Benson city.

    • The 750-square-foot minimum is stated for a single-family unit within the manufactured-home supplementary standards; this source does not establish a universal minimum size for every dwelling type.

    minimum floor area: >= 750 square feet (single-family manufactured-home unit)

    “A single-family unit shall contain a minimum of 750 square feet.”
  • Minimum lot sizeDistrict specific (with conditions)

    Principal structures in the “R-1” One- and Two-Family Residential District.

    • The table specifies an 80-foot minimum lot width in addition to the 10,800-square-foot minimum lot area.

    minimum lot area: >= 10800 square feet (R-1 principal structure) · minimum lot width: >= 80 feet (R-1 principal structure)

    “Principal Structure 42 10,800 80 40 10 30”
  • SetbacksDistrict specific (with conditions)

    Principal structures in the “R-1” One- and Two-Family Residential District.

    • The table lists a 40-foot front yard, 10-foot side yard, and 30-foot rear yard.
    • Other rules modify front yards in some circumstances, including averaging existing front yards within 200 feet and a 20-foot minimum floor.

    front yard: 40 feet (R-1 principal structure, subject to § 154.059(B)) · side yard: 10 feet (R-1 principal structure) · rear yard: 30 feet (R-1 principal structure)

    “Principal Structure 42 10,800 80 40 10 30”
  • Building heightDistrict specific (with conditions)

    Principal structures in the “R-1” One- and Two-Family Residential District.

    • Accessory buildings are limited to 80% of the principal structure height.

    maximum principal-structure height: <= 42 feet (R-1) · accessory-building height: 80% of principal structure (R-1)

    “Principal Structure 42 10,800 80 40 10 30 Accessor y Building 80% of Principal Structure”
  • Living in an RVLimited

    Placement of recreational vehicles in Benson flood-plain districts.

    • The RV must have a current highway-use license.
    • It must be highway-ready, attached only by quick-disconnect utilities, and have no permanent structural additions.
    • The use must be permissible in the underlying zoning district.
    • The exemption is available on individual lots or parcels of record, existing commercial RV parks or campgrounds, and existing condominium associations.
    • The exemption is lost when structural additions exceed $500 or an accessory structure exceeds $500.

    structural-addition threshold: > 500 USD (loss of RV exemption) · accessory-structure threshold: > 500 USD (loss of RV exemption)

    “Recreational vehicles are exempt from the provisions of this subchapter if they are placed in any of the areas listed in § 154.203 (C)(2) below and further they meet the following criteria:”
  • Building in a floodplainLimited

    Recreational-vehicle and related development in Benson flood-plain districts.

    • New or replacement RVs in the Floodway or Flood Fringe Districts must be placed on fill above the regulatory flood-protection elevation with proper elevated road access, or may be conditionally allowed with an emergency evacuation plan.
    • The emergency plan must be prepared by a registered engineer or other qualified individual and address evacuation capability.
    • Attendant sewage and water facilities must be protected from impairment or contamination during flooding.

    flood event: 100 year (emergency evacuation planning)

    “Any new or replacement recreational vehicle will be allowed in the Floodway or Flood Fringe Districts provided said recreational vehicle and its contents are placed on fill above the regulatory flood protection elevation and proper elevated road access to the site exists in accordance with § 154.199 (E)(1).”
  • Permit processPartial

    City of Benson building-permit applications.

    • The application requires owner, contractor, project, use, construction type, and contractor-license information.
    • Site plans and construction plans are marked as required for listed work types.
    • Separate permits are required for plumbing, heating, fireplace, electrical, and septic work.
    • All fees and professional-consultant review costs must be paid before issuance.

    permit commencement deadline: 180 days (after issuance)

    “All permit fees and other costs to review the application that are incurred by the City of Benson for professional consultants will be paid prior to issuance of the Building Permit.”

Still unanswered

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

  • Owner-builder exemption — Owner-builders inside Benson city limits.
  • Certificate of occupancy — Certificate-of-occupancy requirements inside Benson city limits.
  • Lot coverage — Residential lots inside Benson city limits.
  • Tiny homes — Tiny-home occupancy inside Benson city limits.
  • Accessory dwellings — Accessory dwelling units inside Benson city limits.
8 more unanswered
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Short-term rentals
  • Permit fees

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

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