Building permits, zoning and septic rules in Dilworth, Minnesota

At a glance

Building permits

Apply through Dilworth City Hall before starting a building project¹

Zoning

City zoning applies inside Dilworth city limits³

Septic systems

Clay County Environmental Health; new systems need a design, septic permit and inspection before backfilling⁴⁵

RV living

Dwelling occupancy unconfirmed; ask Dilworth City Hall³

Tiny homes and ADUs

Local permission unconfirmed; city zoning and state dwelling standards both matter³⁶

Owner-builder

Qualifying owners have a contractor-licensing exemption, without a waiver of building permits or inspections⁷

Residential lot coverage

R-1 and R-2 structures are limited to 33% lot coverage⁸⁹

Who to call

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Do you need a building permit in Dilworth, MN?

Dilworth requires a city building permit before starting a building project, and the city has adopted the Minnesota State Building Code.¹² Dilworth building-permit applications require a signed zoning certificate, with duplicate plans when the Building Official requests them.¹⁰ Plans must identify lot dimensions, existing buildings, proposed work, uses, parking and occupancy information needed to establish zoning compliance.¹⁰ A homeowner-occupant may obtain a building permit without hiring a contractor, but remains responsible for complying with applicable laws and ordinances.¹

Who issues building permits in Dilworth, and what do they cost?

Start a Dilworth building-permit application at City Hall; contact the Building Official at 218-849-3618 to discuss the proposed project.¹ The Dilworth Building Official reviews construction plans and inspects construction for compliance with the building code.¹¹ Building-permit fees depend on project valuation, so ask for a project-specific estimate.¹ Dilworth’s published fee schedule lists $225 for a conditional-use permit, $225 for rezoning and $225 for a variance; those are zoning application fees rather than a flat house-building permit price.¹² Ask City Hall to confirm the current schedule before applying.¹³

Does Dilworth have zoning, lot-size limits and setbacks?

Dilworth’s zoning ordinance governs land and structures inside the incorporated limits.³ In Dilworth’s R-2 district, the single-family lot standard is 4,800 square feet, with 50 feet of width and 100 feet of depth; the two-family lot-area standard is 6,000 square feet, subject to the chapter’s additional requirements and exceptions.¹⁴ Structures together may cover no more than 33% of a lot in R-1 or R-2.⁸⁹ Before selecting a house footprint, ask City Hall to identify the parcel’s district and applicable setbacks.³ The city warns that its online code may not reflect all recently passed legislation.¹³

How do septic permits work inside Dilworth?

Clay County Environmental Health inspects rural and urban septic systems and issues septic permits and certifications; Dilworth’s city building approval does not replace that septic approval.⁴² All new septic systems in Clay County require a design, a septic permit and an inspection before backfilling.⁵ For an existing septic system, the seller must arrange an inspection and county certification before ownership transfers.¹⁵ Contact Environmental Health at 715 11th Street N., Suite 303, Moorhead, MN 56560 about the septic application.¹⁶ We could not confirm a general Dilworth sewer-connection rule; ask City Hall about sewer service before proposing a private system.³

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

We could not confirm permission to occupy an RV as a dwelling, camp temporarily on a private lot, or occupy a tiny home in Dilworth; take the proposed use to City Hall before buying for that purpose.³ Minnesota’s tiny-house construction standards do not establish local zoning permission: local zoning determines whether a tiny home or accessory dwelling unit is allowed on a property.⁶ An accessory dwelling unit must also comply with state residential building-code requirements for dwellings.⁶ Ask Dilworth City Hall specifically about dwelling use, accessory dwellings, minimum dwelling floor area and utility connections for the parcel.³

Building a home in Dilworth: what are the steps, in order?

1. Ask City Hall to confirm the parcel’s Dilworth zoning district and whether the proposed dwelling use fits the city ordinance.³
2. Prepare the building-permit application, zoning certificate and required plans showing the lot, buildings, proposed work, parking and occupancy.¹⁰
3. Obtain city building approval before starting, and obtain county septic approval if installing a new septic system.¹⁵
4. Schedule required construction inspections and the final inspection with the Dilworth Building Official.¹
5. Arrange the certificate of occupancy before using a new home, under Minnesota’s rule for jurisdictions enforcing the State Building Code.¹⁷²

What should you check before buying land in Dilworth?

Ask Dilworth City Hall about floodplain status before committing to a building site: Minnesota requires floodplain approval for regulated construction and fill, with cities generally administering the ordinance inside their boundaries.¹⁸ Minnesota prohibits a dwelling or other enclosed structure in a mapped floodway.¹⁹ Changes to city driveway approaches require a city building-permit inquiry and inspection; direct state-highway driveway connections have separate MnDOT access-permit requirements.¹²⁰ For land outside Dilworth city limits, use the Clay County guide for the county’s building and zoning requirements.²¹²²

Watch-outs

• Dilworth’s reviewed code says building permits expire if work does not begin within 6 months, stops for 6 months, or is not completed within 24 months unless extended; confirm the deadline with the Building Official.¹⁰
• Dilworth’s online code may omit recently passed legislation; confirm the parcel’s current zoning and applicable amendments with City Hall.¹³
• Minnesota’s owner-builder contractor-licensing exemption does not waive building permits, inspections or certificates of occupancy.⁷

Sources

1. Dilworth Building Official / City Hall (cityofdilworth.com)
2. Dilworth Code § 150.01, Adoption of Building Code (Dilworth), quoted and re-checked
3. Dilworth Code § 153.001, Purpose and Intent (Dilworth), quoted and re-checked
4. On-site Septic Systems, quoted and re-checked
5. On-site Septic Systems, quoted and re-checked
6. Storage Sheds and the Minnesota State Building Code (Minnesota statewide rule), quoted and re-checked
7. revisor.mn.gov (Minnesota statewide rule), quoted and re-checked
8. Dilworth Code § 153.041, R-1 District (Dilworth), quoted and re-checked
9. Dilworth Code § 153.042, R-2 District (Dilworth), quoted and re-checked
10. Dilworth Code § 153.020, Administrative; Enforcement and Fees (Dilworth), quoted and re-checked
11. Dilworth Code § 153.020, Administrative; Enforcement and Fees (Dilworth), quoted and re-checked
12. Dilworth Code § 34.01, Fee Schedule (Dilworth), quoted and re-checked
13. Dilworth City Hall — zoning inquiries (cityofdilworth.com)
14. Dilworth Code § 153.042, R-2 District (Dilworth), quoted and re-checked
15. On-site Septic Systems, quoted and re-checked
16. Clay County Environmental Health (claycountymn.gov)
17. Minnesota Administrative Rules, Part 1300.0220 — Certificate of Occupancy (Minnesota statewide rule), quoted and re-checked
18. Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
19. Floodplain Regulations (Minnesota statewide rule), quoted and re-checked
20. MnDOT Access Management Manual, Chapter 4 (Minnesota statewide rule), quoted and re-checked
21. Building & Land Alteration Permit, quoted and re-checked
22. Clay County Zoning, 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.