PROTO plus is a residential complex completed in 2009 located in Arai, Nakano Ward, Tokyo. Designed by Manabu Naya and Shin Naya of Naya Architects, this project exemplifies contemporary Japanese residential design. The building showcases thoughtful architectural planning that balances functionality with aesthetic considerations. PROTO plus reflects the architects' commitment to creating living spaces that harmonize with urban environments while providing comfortable residential experiences for its inhabitants. The project demonstrates the evolving approaches to multi-unit housing design in Tokyo's residential neighborhoods.