In terms of value, a garage conversion ADU is one of the most cost-effective types of ADUs in the Bay Area because it makes use of your existing structure, reducing construction costs while still adding livable space. Structurally, it transforms your current garage into a fully functional living unit, typically with a kitchen, bathroom, and private entrance. This option is ideal for homeowners who want to maximize underutilized space without expanding their home’s footprint. As per ADU construction regulations in the Bay Area, garage conversions must meet building code standards for safety, insulation, and utilities, ensuring the converted space functions as a distinct and comfortable living area.