Thinking about a new garage, pole building or shed? Below is the square footage formula to follow to find out what size accessory building would be permitted on your property. But easier yet, call the Planning and Building Department; we will calculate the allotted square footage for you.
Square footage formula for all accessory buildings such as pole barns, garages and sheds.
The total area of any combination of attached and detached accessory buildings in R-1A and R-1B Zoning Districts shall not exceed on thousand (1000) square feet.
Detached accessory buildings in R-1A and R-1B Zoning Districts shall cover no more than ten (10%) percent of the total area of the rear yard, even if the area in paragraph above has to be less than 100 square feet.
The total area of any combination of attached and detached accessory buildings in the RE District shall not exceed the total square footage of the living area of the principal building or 1200 square feet, which ever is greater. The square footage of finished or unfinished basements shall not be considered when determining accessory building area. The area of detached accessory buildings may be increased by 400 square feet for each acre over 2.5 acres where such additional acreage is part of a single lot or parcel. Restriction: Additional acreage used to increase the size of accessory structures in an RE District cannot be split off from the acres upon which the principal building is located.
Additional Requirements for Rural Estates Zone District
- Accessory buildings cannot be located in front of the home.
- Minimum 25-foot separation from any other building.
- 25-foot minimum set back to side and rear property lines.
- Maximum height for all accessory structures in RE residential Districts is 25 feet. Height is the vertical distance from average grade on the front of the building to the highest point of the roof for all structures.
R1-A and R1-B Residential Zone Districts
- All construction to be with approved treated materials.
- All decks to be constructed in compliance with the Michigan Residential Building Code.
- Minimum loading criteria of 40 pounds per square foot.
- All decks 30" or more in height to have guard rail systems a minimum of 36" in height.
- Guardrails must be constructed to withstand 200-pound load in any direction with minimum deflection.
- Guardrail balusters to be placed a maximum 4" apart.
- Hand/grab rails are required on deck stair systems with 4 or more risers. Grab rails must return to a wall or post. Open ends not permitted, minimum/maximum height 34" - 38".
- Open back risers for deck stairs shall not exceed 4" in height.
- All handrails must be graspable with a minimum/maximum cross-section dimension of 1 1/2" to 2".