Is a building permit required for any type of Accessory Dwelling Unit?
Yes, a building permit is required for all proposed dwelling unit types. Fire-Resistive Construction. Pursuant to Section R302of the CA Residential Code as amended by the City of Sonoma, Dwelling units in two-family dwellings shall be separated from each other by wall and floor assemblies having not less than a 1-hour fire-resistance rating where tested in … Continued