[5-19-2015 by Ord. No.609; 5-16- 2023 by Ord. No. 789]
A. 
Accessory Buildings.
1. 
Location.
a. 
Accessory structures or buildings shall not be located within any easement, wetland, or stormwater retention/detention ponds.
b. 
Detached accessory structures are prohibited within the front yard.
c. 
Detached accessory structures shall be located within the rear and side yard only.
d. 
Separation between the accessory building and the principal building (if detached) shall meet building code requirements.
2. 
Number, Size and Setback Requirements.
a. 
Two sheds, not to exceed 170 square feet in area each, may be permitted in addition to the allowed amount of detached accessory structures, providing all of the requirements of the Ordinance are met.
b. 
All accessory buildings shall meet the lot coverage, size restrictions, setback requirements, and height restrictions as stated within this section of the Zoning Ordinance.
c. 
Detached accessory garages that will have access onto an alley shall be setback 10 feet from the property line adjacent to the alley.
d. 
All detached accessory structures shall comply with the following size and sidewall height requirements as provided below. Calculations are based upon the total useable lot area.
Table 3: Size Requirements for Accessory Structures
Size Requirements for Accessory Structures in All Residential Zoning Districts
Parcel Size
Maximum Square Feet
Max Number of Detached Structures
Maximum Sidewall Height
Up to 1.0 acres
Up to 40% impervious surface area of site
3
14 feet
1.01 acres or more
Up to 40% impervious surface area of site
4
14 feet
3. 
Building Materials.
a. 
Accessory structures shall be compatible with the principal structure with respect to building materials, design, and character. Roof style and colors shall be similar to or compatible with the principal building.
b. 
Accessory buildings of pole type construction are allowed in all residential zoning districts.
4. 
Attached Structures.
a. 
An accessory structure shall be considered attached, and an integral part of the principal structure when it is connected by a common wall, an enclosed passageway, breezeway, or other similar roof structure. The accessory structure attached to the principal structure shall be made structurally a part of the principal building and shall comply with the requirements as established for the principal structure within this section.
b. 
No additional roofs or appendages shall be permitted as additions to accessory buildings regardless of size.
5. 
Driveways for Accessory Structures.
a. 
No additional or separate driveway entrances are permitted for access to an accessory structure, unless the property is a corner lot or abuts an alley way where driveway entrances can be provided from each adjacent street or alley.
b. 
If the property does not have an attached garage, driveway access to the accessory garage shall be provided in accordance with the driveway requirements provided for within the particular zoning district in which the property is located.
B. 
Accessory Dwelling Units.
1. 
All ADU operators shall apply for and maintain a rental license with the City.
2. 
The owner(s) of the property on which the accessory dwelling unit is created must continue to occupy at least one of the dwelling units as their primary residence, except for a bona fide temporary absence.
3. 
The size of an ADU shall be no larger than the finished floor area of the principal structure.
4. 
No more than four persons shall occupy an ADU at one time.
5. 
No more than one ADU shall be placed on a property.
6. 
Off-street parking spaces shall be provided for use by the owner-occupant(s) and tenant(s). Two off-street parking spaces shall be required for the principal dwelling, and an additional two off-street spaces shall be provided for the ADU.
7. 
In areas with public utilities, the ADU's water/sewer connection shall be connected to the existing home.
8. 
In rural areas, the septic must be sized to meet total bedroom count (principal structure plus ADU).
9. 
A deed restriction shall be created and recorded with Isanti County restricting the independent sale of an ADU and requiring adherence to size limitations and other requirements found in this chapter.
10. 
All ADUs shall meet the regulations found in the MN State Residential Code, including those regulations found in Appendix Q "Tiny Houses" within the MN State Residential Code.
11. 
The ADU shall meet location, size, setback and building material regulations for accessory structures found in Article 13 of the City's zoning ordinances.
C. 
Time of Construction. No accessory building, structure or use shall be permitted or constructed on any lot prior to the time of construction of the principal building to which it is accessory.
D. 
Decks. A deck shall be considered part of the principal structure and shall be subject to the setbacks of the principal structure.
E. 
Zoning Permits Required. Unless a building permit is required, prior to construction and installation of any of the following a zoning permit is required:
1. 
Accessory structures at 200 square feet or less in floor area.
2. 
Residential patios and decks not attached to a structure, which are less than 30 inches in height above grade.
A. 
Accessory Buildings and Structures.
1. 
Location.
a. 
Accessory structures or buildings shall not be located within any easement, wetland, or stormwater retention/detention ponds.
b. 
Detached accessory structures are prohibited within the front yard.
c. 
Detached accessory structures shall be located within the rear and side yard only.
d. 
Separation between the accessory structure and the principal building (if detached) shall meet building code requirements.
2. 
Size and Setback Requirements.
a. 
All accessory buildings shall meet the setback requirements as established for the principal structure.
b. 
The height of an accessory building shall not exceed the height of the principal building.
c. 
Accessory buildings shall not exceed 30% of the floor area of the principal building.
d. 
Accessory buildings shall meet the lot coverage and open space (green space) requirements as established for the zoning district in which the parcel is located.
3. 
Building Materials.
a. 
Accessory structures shall be compatible with the principal structure with respect to building materials, design, and character. Roof style and colors shall be similar to or compatible with the principal building.
b. 
Buildings of pole type construction are prohibited.
4. 
Attached Structures.
a. 
An accessory structure shall be considered attached, and an integral part of the principal structure when it is connected by a common wall, an enclosed passageway, breezeway, or other similar roof structure; and shall be subject to the following requirements:
(i) 
The accessory structure attached to the principal structure shall be made structurally a part of the principal building and shall comply with the requirements as established for the principal structure within this section.
b. 
No additional roofs or appendages shall be permitted as additions to accessory buildings regardless of size.