Building permits, zoning and land rules in Murray County, Minnesota

Unincorporated Murray County requires a zoning certificate before occupying or using vacant land or a structure that is constructed, reconstructed, moved, altered or enlarged¹. County guidance says the certificate requirement reaches every structure, including small, portable and temporary structures³. Minnesota's State Building Code supplies statewide construction standards, but the available official material does not establish Murray County's local structural-permit or inspection arrangement for an ordinary home^1,6. Where a jurisdiction does administer the State Building Code, permits are not required for one-story detached tool or storage sheds of 200 square feet or less, and counties may choose to administer the code by ordinance^6,7. Ask Environmental Services whether the proposed work also needs a structural permit or inspection before starting². Agricultural buildings have limited ordinance exemptions, but zoning, shoreland, floodplain, septic and state requirements can still apply⁴.

Murray County Environmental Services' Planning and Zoning Division is the main land-use office for unincorporated property, at 2500 28th Street in Slayton and (507) 836-1166². The division handles zoning certificates, septic permits, variance and rezoning requests, grading and filling permits, conditional-use permits, floodplains and shoreland². A building or alteration application must include a scaled site and building plan¹. Because the available official material does not identify Murray County's structural-permit or inspection arrangement for an ordinary home, ask Environmental Services what approvals apply to the exact project^1,2. For an entrance onto a county road, use the Highway Department's online driveway-permit process or call 507-836-6327⁵. Access to another public highway is controlled by that road authority⁸.

Yes. Murray County administers zoning outside incorporated municipal limits, with stated ordinance exceptions and shoreland controls in the City of Hadley³. The ordinance publishes agricultural, residential, commercial, industrial and several overlay districts, so the official map and any municipal zoning must be checked for a specific parcel¹. In the Residential District, an individual-septic single-family lot needs 20,000 square feet of buildable area, while a centrally sewered lot needs 12,000 square feet¹. Residential District structures generally have a 50-foot front setback, 10-foot side yards and a 30-foot rear yard, with a stated exception for qualifying older subdivisions¹. Hadley's shoreland-management area generally caps impervious coverage at 25% of a lot¹. Minnesota leaves accessory dwelling units to local zoning, and we could not confirm a Murray County accessory-dwelling rule⁹. Minimum dwelling size was not confirmed, so ask Environmental Services about the proposed design and parcel district².

Murray County Environmental Services administers septic permitting and compliance in unincorporated Murray County, while incorporated areas may run their own approved septic programs¹. In unsewered county-administered areas, sewage must use an approved subsurface treatment system or a system permitted by the Minnesota Pollution Control Agency; off-grid sanitation is not an exemption¹. A permit is required for a new or replacement system and for work changing its function, capacity, location, design or layout¹. The system must pass final inspection before the county issues its Certificate of Compliance¹. Minnesota does not require a compliance inspection when property is sold, though many local ordinances do, so ask the county whether an existing system needs one before closing¹⁰. Subdivision lots must have potable water and compliant sewage treatment, or written confirmation of centralized sewer service; lots requiring holding tanks are prohibited¹. Only about 3.4% of Murray County soils are rated without severe limits for a conventional drain field, so make the site and soil evaluation an early contingency¹¹.

An RV used as the principal structure on a lot for more than 30 days in any year is treated as a dwelling unit in Murray County, requires a zoning permit, and must connect to public sewer or an approved septic system¹. A guest RV on property with a permanent dwelling is allowed seasonally from May through December through an annual zoning permit, and RVs must be currently licensed and meet setback and impervious-surface rules¹. New RV parks and campground expansions are prohibited in floodplain districts¹. We could not confirm a general rule on short stays, so ask Environmental Services about the parcel's district².

A tiny house used as a dwelling must meet applicable Minnesota residential-code requirements, while local zoning controls whether that use and its siting are allowed¹². Murray County does not specifically resolve tiny-home occupancy, and even a portable or temporary structure requires a zoning certificate^2,3. The county does allow one temporary supportive-care dwelling per parcel, which must be removed within 30 days after its permit ends and cannot sit in shoreland or floodplain overlay districts¹. New manufactured homes installed for occupancy require the applicable installation inspection¹³.

1. Confirm the parcel's jurisdiction, zoning district and overlays with Environmental Services^1,2,3.
2. Prepare the scaled site and building plan, apply for the county zoning certificate, and ask whether a structural permit or inspections also apply^1,2.
3. Arrange the septic site evaluation early and submit the septic application when required^1,11.
4. Apply online for a county-road entrance, or contact the controlling authority for another public highway^5,8.
5. A homeowner may perform work on the owner's property, but that does not waive zoning, septic or applicable building approvals⁴.
6. Keep permitted septic work available for inspection and obtain the final Certificate of Compliance¹.

Start with jurisdiction, the zoning map and any shoreland or floodplain overlay¹. Murray County's floodplain overlay reaches floodway, flood-fringe and general-floodplain land; affected lots need a building site outside the floodway at or above the regulatory flood-protection elevation, and septic systems cannot sit in the floodway¹. A proposed subdivision needs a suitability analysis, and its lots must satisfy county subdivision and shoreland controls¹. Check septic feasibility before waiving contingencies because only about 3.4% of county soils are rated without severe limits for a conventional drain field¹¹. Minnesota requires well notification and a fee rather than a general construction permit, and the county material we reviewed did not establish a separate county well permit¹⁴. Confirm legal road access and the controlling road authority's permit for a new entrance^5,8. The effective property-tax rate is about 0.8%, with a median annual bill near $1,373¹¹.