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SECOND UNIT DWELLING STANDARDS & CHECK LIST SECOND UNIT DWELLING STANDARDS • Owner Occupancy.The owner of the property shall occupy either the existing single-family dwelling or the proposed Second Unit Dwelling for a period exceeding 90 days per year. The Community Development Department will record a requirement noting the owner must live on the property for the Second Unit Dwelling to be valid. • Size of UntL The second unit dwelling shall conform to the following requirements; Except as provided below,the second unit dwelling shall not exceed one thousand,two hundred (1200) square feet of living area; In areas zoned AG,AL,or AU,the second unit dwelling shall not exceed ont thousand,two hundred (1200) square feet of living area provided the existing dwelling is used as the second unit dwelling. • Setbacks.The Second Unit Dwelling shall comply with all yard requirements for a main structure In the zone in areas zoned AG,A-L,or A-U. The second unit dwelling may extend Into the front yard area If It Is not a mobilehome. • Off-Street Parking.Two (2) off street parking spaces shall be provided If the Second Unit Dwelling Is a permanent structure and one (1) off street parking space if it Is a temporary mobilehome structure. • Compatibility.The following requirements shall be similar to or compatible with,the existing single family dwelling. The Second Unit Dwelling shall be attached whenever possible, especially on parcels less than 10,000 square feet. • Pubfic Sewer and Water.In urban communitles, both the proposed second unit dwelling and the existing single family dwelling must be connected to a public sewage disposal system and to a public water system. • Other Codes.The Second Unit Dwelling shall conform with all the requirements of the Environmental Health Division and the County that are applicable to residential units In the zone In which the property Is located. • Niobilehomes. If the Second Unit Dwelling Is proposed to be a mobilehome,see"Mobilehome Installation and Occupancy Requirements for additional standards. • Time Limits.If the Second Unit Dwelling Is a mobilehome,the permit Is valid for only three years. Continued use will require a renewal fee. • CCAR's.The granting of a second unit dwelling Is valid only Insofar as there are no CC&R's (Covenants, Conditions and Restrictions) applicable to the property that would otherwise prohibit the use. SITE PLAN CHECKLIST • North Arrow,fate and Scale_Use an engineer's scale Q.e. 1"to 10", 1'to 30',etc.). The direction of"north" should be pointing towards the top of the page. • Streets and Easernents.Location and names of all streets and easements bordering on the property with access details. • Property Lines.All property lines or boundary lines of the parcel with dimensions. • Structures and the Second Unit Dweffing.All existing structures Including covered areas such as patios, driveways and walks located on the property and the location of the proposed Second Unit Dwelling with dimensions,square footage and distances from other structures and property lines. The use and number of floors should be labeled on each structure. • Parking and Driveways_The location,dimensions and surface material of all existing and proposed parking and driveways. • Water Weffa The location of existing and proposed water wells on-site and any oft-site wells within 150'of the proposed mobilehome. Wells must meet the following setbacks: 5'from structures; 50'from septic tanks; 100'from leach lines; 150'from sumps or seepage pits; and to'from property lines. • Sewer and Septic Tanks:The location of the mobilehome sewer outlet, public sewer hook-up,or existing and proposed sewage disposal systems and any off-site sewage disposal systems within 150'of the property. Septic tanks must meet the following setback: 5'from property lines,structures,driveways and swimming pools; 50'from water wells. Leach lines must meet the following setbacks: 10'from structures,driveways and swimming pools; 100'from wells, streams and waterways. 5'to 75'from property lines depending on zoning or the location of septic systems on adjoining properties (this requirement also applies to seepage pits).