South Dakota, Union County HVAC Permit Regulations and County Ordinances for Unincorporated Areas

Union County Building and Safety Divisions

Union County, South Dakota, has a Planning and Zoning Department that handles building permits and land use regulations within the county. This department is located at 209 E. Main Street, Suite 100, Elk Point, SD 57025. They can be reached by phone at 605-356-3354.

Rules for Properties in Unincorporated Areas

For properties in unincorporated areas of Union County, a construction permit is required for any new structure or addition, including buildings, garages, and sheds.

To obtain a building permit, you will need to complete an application form, submit site plans with lot lines and measurements, and provide drawings of the proposed structure. Proof of property ownership or authorization is also required. The County Planning and Zoning Department will review the application for compliance with the 2008 Revised Zoning Ordinance.

South Dakota law requires compliance with the 2021 International Building Code (IBC) if local building standards are adopted. It is advisable to confirm the specific code adoption status with the Planning and Zoning office.

Contractors working in South Dakota must have a contractor's excise tax license. Electricians and plumbers are required to hold state-issued licenses.

Replacing or installing a new HVAC system in Union County requires mechanical and electrical permits to ensure that ductwork and wiring meet current energy and safety codes.

In unincorporated areas of South Dakota, separate permits for wells and septic systems are often required.

It is strongly recommended to contact the Planning Department before purchasing property in a rural area to understand allowed uses and ensure they align with your intended property use.

Resources to Learn More

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

South Dakota Hvac Legislation, Codes, and Guidelines

State-Level HVAC and Building Code Framework in South Dakota

South Dakota utilizes a decentralized approach to building codes, meaning there is no single, uniform building code enforced statewide by a central agency. Instead, the adoption and enforcement of building codes, including those for HVAC systems, are largely handled at the local municipal or county level. When local jurisdictions choose to adopt building ordinances, they are generally guided by the International Code Council (ICC) standards, such as the International Mechanical Code (IMC) and the International Fuel Gas Code (IFGC).

Regulatory Oversight and Licensing

While building code enforcement is decentralized, specific aspects of HVAC and mechanical work are regulated through state-level licensing and safety programs:

South Dakota Plumbing Commission: This commission oversees the licensing of contractors and professionals involved in mechanical and plumbing work, including appliance installation. It ensures that practitioners meet examination and continuing education requirements.
South Dakota Department of Public Safety (State Fire Marshal): The State Fire Marshal's Office is responsible for fire safety standards and the inspection of specific equipment, such as boilers, under South Dakota Codified Law (SDCL) 34-29A.
South Dakota Electrical Commission: This body oversees electrical standards, which are critical for the operation of HVAC systems, and enforces the National Electrical Code (NEC) across the state.

Resources to Learn More

Select a City in Union 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.

Help Us Improve This Guide

Did you find a dead link, or do you have the direct link to the Union County permit application portal? Help us keep this information accurate by submitting an update.