Salt Lake City

Planning

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Accessory Dwelling Unit Code Changes

Accessory Dwelling Unit Code Changes

Salt Lake City is proposing to update its Accessory Dwelling Unit (ADU) Ordinance. In general, the updates are being considered as a way to increase the number of ADUs being built in the City. The changes are intended to make ADUs easier to build, as well as increase the number of locations and types of properties where they can be built.

Among the proposed changes:

  • Allowing ADUs on properties with a nonresidential use or multi-family use. Currently, ADUs are only permitted on properties with a single-family dwelling.
  • Eliminating the conditional use requirement for detached ADUs in single-family residential zoning districts. As a permitted use, detached ADUs will still be required to meet all size and location requirements in the ordinance.
  • Adding alley activation requirements for detached ADUs constructed within a certain distance from a public alley.
  • Removing the requirement that an ADU cannot be taller than the primary home or building. Instead, ADUs would follow similar height requirements as other accessory buildings like garages.  
  • Modifying setbacks so an ADU over a garage can be 5 feet from a property line instead of 10.  
  • Removing vague or conflicting requirements for different types of detached ADUs so the code is easier to use.
  • Removing a requirement that said a detached ADU cannot be larger than 50% of the footprint of the home. Instead, the size of the ADU will be capped at 720 square feet.  Homes on larger lots may be able to have larger ADUs.
  • Changing regulations that conflict with Utah state code related to ADUs that are attached or within an existing home. 
  • Prohibit short-term rentals on properties with an ADU.
  • ADUs on properties with single-family dwellings currently require the owner to live on the property. This could mean an ADU renter might be forced to move if the owner of the property is no longer living on site. This proposal may include removing the owner occupancy requirement.

View Draft of the Proposed Text Amendments.

Next Steps

Here is what you can expect during this process:

Now through Summer 2022: The Planning Division will solicit community input and make a draft of the proposed code updates.

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Summer 2022: The Planning Commission will hold a public hearing on the plan.  The Planning Commission encourages input from the community before and during the hearing. The Commission is legally required to make a recommendation to the City Council. 

Fall/Winter 2022:

The ADU Ordinance Updates will be presented to the City Council for adoption.

Comments and Questions

For comments or questions please contact:

Michael McNamee, Principal Planner // michael.mcnamee@slcgov.com

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