Emeryville has not published guidelines for ADUs, but they adapted their existing codes for buildings which were were originally described as “Secondary Residential Units” and are now called “Accessory Dwelling Units.” See Article 14 of Chapter 5 of the Municipal Code
Accessory Dwelling Units are permitted only in the Residential zones, and in the MUR Mixed Use with Residential and MURS Mixed Use with Residential South zones.
An Accessory Dwelling Unit shall be compatible with the principal Single Unit with which it is associated in terms of form, materials, style, and other relevant design factors. No formal design review approval shall be required, but the design shall be evaluated as part of the zoning compliance review for conformance to the requirements of this Section.
If the principal Single Unit is less than 1,000 square feet, the ADU shall not exceed 500 square feet.
If the principal Single Unit is at least 1,000 square feet but less than 2,400 square feet, the ADU shall not exceed 50% of the floor area of the principal Single Unit.