Yes. A local agency may impose development standards, such as setbacks, for the creation of ADUs. Setbacks may include front, corner, street, and alley setbacks. Additional setback requirementsmay be required in the coastal zone if required by a local coastal program.
Setbacks may also account for utility easements or recorded setbacks. However, setbacks must not unduly constrain the creation of ADUs and cannot be required for ADUs proposed pursuant to subdivision (e).
Further, a setback of no more than four (4) feet from the side and rear lot lines shall be required for an attached or detached ADU. ( Gov. Code, § 65852.2, subd. (a)(1)(D)(vii).)
A local agency may also allow the expansion of a detached structure being converted into an ADU when the existing structure does not have four-foot rear and side setbacks. A local agency may also allow the expansion area of a detached structure being converted into an ADU to have no setbacks, or setbacks of less than four feet, if the existing structure has no setbacks, or has setbacks of less than four feet. A local agency shall not require setbacks of more than four feet for the expanded area of a detached structure being converted into an ADU.A local agency may still apply front yard setbacks for ADUs, but front yard setbacks cannot preclude a statewide exemption ADU and must not unduly constrain the creation of all types of ADUs. (Gov. Code, § 65852.2, subd. (c).)