South Dakota, Sully County Plumbing Permit Regulations and County Ordinances for Unincorporated Areas

Sully County Building and Safety Jurisdiction

Sully County's Planning & Zoning Department handles building permit applications and administers county zoning ordinances. They make recommendations to the Planning Commission regarding permit approvals or denials. For properties in unincorporated areas, Sully County's subdivision regulations apply to all land subdivisions outside of municipal jurisdictions, as outlined in SDCL ยง 11-6-26. These regulations aim to coordinate roads, set aside areas for public uses and facilities, and promote orderly growth compatible with the natural environment. It is unlawful to subdivide land without a plat approved according to state laws and county regulations. The Register of Deeds will not record documents for unplatted property sales or transfers unless they comply with these ordinances.

Plumbing Permit Requirements for Unincorporated Areas

In South Dakota, plumbing standards are governed by the South Dakota State Plumbing Commission, which adopts model codes, historically based on the Uniform Plumbing Code (UPC), with state-specific amendments. For properties in unincorporated areas of Sully County, the county's building permit application states that permit holders are responsible for ensuring all utility installations, including plumbing, comply with applicable local, state, and federal codes and regulations.

Homeowners in South Dakota may be permitted to install plumbing in their own single-family residences or farmsteads, provided they reside there or will reside there upon completion. This homeowner exception does not extend to other structures on the property, nor to commercial or rental properties, which must be serviced by a licensed South Dakota plumbing contractor.

All plumbing installations must be inspected and approved by a state plumbing inspector. This typically involves an underground inspection, a rough-in inspection, and a final inspection, requiring advance notice to the inspector.

The South Dakota Plumbing Commission has adopted the 2024 Uniform Plumbing Code.

Resources to Learn More

Note: The following state-wide building codes and regulations apply universally to all jurisdictions within South Dakota, including Sully County.

South Dakota Plumbing Legislation, Codes, and Guidelines

State Statutes and Plumbing Codes

The state of South Dakota regulates plumbing through South Dakota Codified Law (SDCL) Chapter 36-25. Under this authority, the state has adopted the 2024 edition of the Uniform Plumbing Code (UPC) as the foundational technical standard for plumbing systems. This adoption includes state-specific amendments and rules promulgated by the state commission to govern the design, installation, and maintenance of plumbing systems, including potable water distribution, drainage, waste, and vent systems.

Primary State Agency

The primary agency responsible for setting and enforcing these standards is the South Dakota Plumbing Commission. This commission, which operates under the South Dakota Department of Labor and Regulation, is tasked with administering state laws and regulations concerning plumbing, licensing plumbing contractors and plumbers, conducting examinations, and performing inspections of plumbing installations to ensure compliance with the adopted state code.

Resources to Learn More

Select a City in Sully County

If your project is located within incorporated city limits, you will likely need to follow municipal ordinances rather than county rules. Select your city below to view local regulations.

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