Natural Illuminance is a residential project completed in 2001 in Edogawa Ward, Tokyo, designed by Masahiro Ikeda of Ikeda Masahiro Architectural Laboratory and Masaki Endo of EDH Endo Design Studio. This house exemplifies a thoughtful approach to residential design, with its name reflecting the architects' sophisticated understanding of natural light integration. The collaboration between these two design firms resulted in a contemporary dwelling that demonstrates careful consideration of spatial planning and environmental responsiveness. Completed during the early 2000s when Japanese residential architecture was experiencing significant innovation, Natural Illuminance represents an important contribution to modern domestic design in the Tokyo metropolitan area.