STATEMENTS. This claim may be used to file for the Homeowners' Exemption for the Assessment Roll and the Supplemental Assessment Roll. An ADU must have its own kitchen and bathroom and function as a complete, independent dwelling separate to the main residence on the lot.Resident Enrollment. You will need to bring two pieces of documentation verifying your address and one form of valid Photo ID when. The minimum size of a lot located in the Kensington (-K) combining district with a primary residence and an accessory dwelling unit is 10,000 square feet. Sellers must disclose anything that is known to the Sellers that materially affects the value or desirability of the. Property. What are the requirements for a Community Event? See Requirements for Temporary Food Facilities in the Temporary Event Health Permit Application Packet. Welcome to Contra Costa County's on-line application process!