What started as an underused backyard became a fully independent living space for the Chen family's aging parents. This 640 sq ft detached ADU combines modern design with practical multigenerational living, allowing three generations to share a property while maintaining privacy and independence. The open floor plan maximizes every square foot, featuring a full kitchen, spacious bedroom, and modern bathroom with accessibility in mind. Floor-to-ceiling windows flood the space with natural light while strategic placement ensures privacy from the main home. For the Chens, what once required a 30-minute drive across town now takes 30 steps across the backyard—close enough to share daily life, separate enough to maintain independence.