Saiiji no Hanare to Yaneura is a residential annex completed in 2015 in Suita, Osaka, designed by Jun Idie of Design Office Izie. This project represents a thoughtful approach to residential architecture, creating additional living space through a detached structure and attic conversion. The design demonstrates careful consideration of spatial relationships and functional living arrangements. The work exemplifies contemporary Japanese residential design that respects existing site conditions while introducing new architectural elements. The project is noteworthy for its integration of traditional spatial concepts with modern design principles, making it a compelling study for architects interested in residential extension and renovation strategies.