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8. Excluding converted garage accessory dwelling units, the accessory dwelling unit shall be designed so that the exterior facade material is similar in appearance to the facade of the existing principal structure. 9. One(]) off-street parking space shall be provided for each accessory dwelling unit in addition to the minimum spaces required for the principal dwelling unit 10. The accessory dwelling unit shall be serviced by centralized water and wastewater, or meet the environmental health department's well and septic tank and drain field requirements. Modification, expansion or installation of well and/or septic tank facilities to serve the accessory dwelling unit shall be designed in a manner that does not render any adjacent vacantproperties "unbuildable"for development when well and/or septic tank facilities would be required to service development on those adjacent properties. 11. No accessory dwelling unit shall be sold separately from the principal dwelling unit All accessory dwelling unit and the principal dwelling unit shall be located on a single lot or parcel or on a combination of lots or parcels unified under a recorded unity of title document 12 An accessory dwelling unit shall be charged an impact fee based on the lowest appropriate residential unit impact fee category 13. Mobile or manufactured homes and recreational vehicles shall not be used as accessory dwelling uits. The accessory dwelling unit shall mee the minimum requirements for a dwelling unit in accordance with the Florida Building Code. 14. All applicable zoning district regulations pertaining to setbacks and lot coverage provisions shall be met 15. An accessory dwelling unit shall not be operated as a vacation rental, as defined in Section 901.03. No accessory dwelling unit may be utilized for commercial purposes or may be permitted to obtain home occupation permit On February 18, 2020, the BCC approved a recommendation by the AHAC to increase the square footage cap for accessory dwelling units from 33% to 50% of heated/cooled gross floor area of the principal home and to keep the 750 square foot under air cap, except for lots greater than one acre in size containing a principal residence greater than 2,500 square feet under air. In those cases, the accessory dwelling unit cap would be 1,000 square feet. On June 19, 2022 the BCC approved an LDR amendment that increases the maximum size for ADUs to 50% of the heated/cooled area of the primary residence or 1,000 square feet (this is increased to 1,200 sf for lots exceeding one acre in size), whichever is less. On parcels that are 200,000 square feet or larger, a second accessory dwelling unit is allowed as long as the size does not exceed 600 sf. ANALYSIS: On September 29, 1992, the Board of County Commissioners adopted the county's accessory dwelling unit provision. In Indian River County, accessory dwelling units are allowed in all residential zoning districts. In addition to allowing for these smaller units, Section 971.41(10) of the county's land development regulations establishes specific land use criteria to regulate the size, location and appearance of these units and prevent over crowding. Even though the county has allowed accessory dwelling units since 1992, these types of units were not popular until 2004, when the price of land and housing started to increase. When housing affordability became an issue, more people started looking at ways to create affordable housing units. One method was to build more accessory dwelling units. These types of units are appropriate as affordable housing units. Recently recommended revisions will allow more opportunities for homeowners to create more appropriately sized affordable housing units throughout the Unincorporated County. 48 15