- Live/work units complying with the requirements of Section 419 of the Michigan building code may be built as 1- and 2-family dwellings or townhouses. Fire suppression required by Section 419.5 of the Michigan building code when constructed under the Michigan residential code for 1-and 2-family dwellings shall conform to Section P2904.
- Owner-occupied bed and breakfast and board and room facilities may be constructed in accordance with sections 4b and 13c of the Stille-DeRossettHale single state construction code act, 1972 PA 230, MCL 125.1504b and MCL 125.1513c.
- There is good and sufficient cause showing that the unique characteristics of the size, configuration or topography of the site render the elevation standards of Section R322 inappropriate.
- Failure to grant the modification would result in exceptional hardship by rendering the lot undevelopable.
- The granting of modification will not result in increased flood heights, additional threats to public safety, extraordinary public expense, cause fraud on or victimization of the public, or conflict with existing laws or ordinances.
- The modification is the minimum necessary to afford relief, considering the flood hazard.
- Written notice specifying the difference between the design flood elevation and the elevation to which the building is to be built, stating that the cost of flood insurance will be commensurate with the increased risk resulting from the reduced floor elevation and stating that construction below the design flood elevation increases risks to life and property, has been submitted to the applicant.
Building permits shall not be required for any of the
- One-story detached accessory structures, if the floor area does not exceed 200 square feet (18.58 m2).
- A fence that is not more than 7 feet (2134 mm) high.
- A retaining wall that is not more than 4 feet (1219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge.
- A water tank supported directly upon grade if the capacity is not more than 5,000 gallons (18927 L) and the ratio of height to diameter or width is not greater than 2 to 1.
- A sidewalk and driveway not more than 30 inches (762 mm) above adjacent grade and not over any basement or story below and are not part of an accessible route.
- Painting, papering, tiling, carpeting, cabinets, counter tops, and similar finish work.
- A prefabricated swimming pool that is less than 24 inches (610 mm) deep, and not greater than 5,000 gallons (18927 L), and is installed entirely above ground.
- Swings and other playground equipment accessory to detached 1- or 2-family dwellings.
- Window awnings in group R-3 and U occupancies, supported by an exterior wall that do not project more than 54 inches (1372 mm) from the exterior wall and do not require additional support, as applicable in Section 101.2 and group U occupancies.
- Decks not exceeding 200 square feet (18.58 m2) in area, that are not more than 30 inches (762 mm) above grade at any point, are not attached to a dwelling and do not serve the exit door required by Section R311.4.
Electrical permits shall not be required, as in accordance
with the Michigan electrical code, R 408.30801
to R 408.30880, for any of the following:
- Repairs and maintenance: Minor repair work, including the replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles.
- Radio and television transmitting stations: The provisions of the code do not apply to electrical equipment used for radio and television transmissions, but do apply to equipment and wiring for power supply and to the installation of towers and antennas.
- Temporary testing systems: A permit is not required for the installation of any temporary system required for the testing or servicing of electrical equipment or apparatus.
Mechanical permits shall not be required for any of
- A portable heating or gas appliance that has inputs of less than 30,000 BTU's per hour.
- Portable ventilation appliances and equipment.
- A portable cooling unit.
- Steam, hot water, or chilled water piping within any heating or cooling equipment or appliances regulated by this code.
- Replacement of any minor part that does not alter the approval of equipment or an appliance or make such equipment or appliance unsafe.
- A portable evaporative cooler.
- Self-contained refrigeration systems that contain 10 pounds (4.5 kg) or less of refrigerant, or that are actuated by motors of 1 horsepower (0.75kW) or less.
- Portable fuel cell appliances that are not connected to a fixed piping system and are not interconnected to a power grid.
- An oil burner that does not require connection to a flue, such as an oil stove and a heater equipped with a wick.
- A portable gas burner that has inputs of less than 30,000 BTU's per hour.
- When changing or relocating a gas meter or regulator, a permit is not required when installing gas piping which shall be limited to 10 feet (3005 mm) in length and not more than 6 fittings.
When installing geothermal vertical closed
loops under the supervision of a mechanical
contractor licensed in HVAC as long as the
company meets both the following:
- Has obtained a certificate of registration as a well drilling contractor pursuant to part 127 of the public health code, 1978, PA 368, MCL 333.12701 to 333.12771.
- Has installed the geothermal vertical closed loops in accordance with the department of environmental quality's best practices regarding geothermal heat pump closed loops. Exemption from the permit requirements of this code shall not be deemed to grant authorization for work to be done in violation of the provisions of this code or other laws or ordinances of this jurisdiction.
Plumbing permits shall not be required for either of
the following :
- The stopping of leaks in drains, water, soil, waste or vent pipe. If any concealed trap, drainpipe, water, soil, waste or vent pipe becomes defective and it becomes necessary to remove and replace the same with new material, then the work is considered as new work and a permit shall be obtained and inspection made as provided in the code.
- The clearing of stoppages or the repairing of leaks in pipes, valves, or fixtures, and the removal and reinstallation of water closets, if the repairs do not involve or require the replacement or rearrangement of valves, pipes, or fixtures.
- Identify and describe the work to be covered by the permit for which application is made.
- Describe the land on which the proposed work is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed building or work.
- Indicate the use and occupancy for which the proposed work is intended.
- Be accompanied by construction documents and other information as required in Section R106.1.
- State the valuation of the proposed work.
- Be signed by the applicant or the applicant's authorized agent.
- Give such other data and information as required by the building official.
For the purpose of this determination, a substantial improvement shall mean any repair, reconstruction, rehabilitation, addition or improvement of a building or structure, the cost of which equals or exceeds 50 percent of the market value of the building or structure before the improvement or repair is started. Where the building or structure has sustained substantial damage, repairs necessary to restore the building or structure to its predamaged condition shall be considered substantial improvements regardless of the actual repair work performed. The term shall not include either of the following:
- Improvements to a building or structure that are required to correct existing health, sanitary or safety code violations identified by the building official and that are the minimum necessary to ensure safe living conditions.
- Any alteration of a historic building or structure,
provided that the alteration will not preclude the
continued designation as a historic building or
structure. For the purposes of this exclusion, a
historic building shall be any of the following:
- Listed or preliminarily determined to be eligible for listing in the National Register of Historic Places.
- Determined by the Secretary of the U.S. Department of Interior as contributing to the historical significance of a registered historic district or a district preliminarily determined to qualify as an historic district.
- Designated as historic under a state or local historic preservation program that is approved by the Department of Interior.
- The building permit number.
- The address of the structure.
- A description of that portion of the structure for which the certificate is issued.
- A statement that the described portion of the structure has been inspected for compliance with the requirements of this code.
- The name of the building official.
- The edition of the code under which the permit was issued.
- Any special stipulations and conditions of the building permit.