Michigan, Lake County HVAC Permit Regulations and County Ordinances for Unincorporated Areas
HVAC Permit Requirements in Lake County, Michigan
In Lake County, Michigan, HVAC work generally requires a permit. Mechanical work cannot commence until a permit has been issued by the appropriate enforcing agency. Homeowners performing work on their own residence, as well as contractors, are responsible for securing the necessary permits.
County-Level Jurisdiction
Lake County has a Building Department that handles permit applications and enforcement throughout the county. For questions regarding county-issued permits, the Lake County Building Department can be contacted directly.
Unincorporated Areas
Lake County issues building permits specifically for properties located in the unincorporated areas of the county. If a property is within an incorporated city, that city's building department is responsible for permits, not the county.
For unincorporated areas, permit applications can be obtained from the Lake County Building Department office or downloaded from their website. Applications are accepted via USPS mail or in person; emails and faxes are not accepted.
The Lake County Building Department also handles mechanical permit applications. Mechanical work must conform to the Michigan Mechanical Code, and no work should be concealed until it has been inspected.
Specific forms for various projects in unincorporated Lake County, including some that may not require a full permit but rather a registration, are available. These include applications for air conditioner replacements, gazebo or screen room construction, and water heater replacements.
Permit Application Process and Requirements
- Permit applications are available in person or via the Lake County Building Department website.
- Applications must be submitted by mail or in person.
- Permits are generally valid for one year and can be extended in 180-day increments for a fee.
- A permit will be canceled if no inspections are requested or performed within six months of issuance or the last inspection.
- For mechanical permits, plans may not be required for certain residential dwellings (total heating/cooling system input rating of 375,000 Btu's or less), minor alterations, or small business/mercantile/storage buildings (under 3,500 sq ft with HVAC equipment only). Plans are required for all other building types.
- Contractors must be licensed according to Contractor License Ordinance #1628.
- Homeowners are permitted to construct one residence every seven years, subject to approval by the Unincorporated Licensing Board.
- Energy compliance for mechanical systems can be met through a performance method (requiring an Energy Compliance Analysis report) or a prescriptive method (requiring a Lake County Energy Compliance Certificate).