Near SFMoMA, this penthouse offers space for entertaining and acts as a blank canvas allowing for the owner's artistic evolution. The seamless integration of lighting with architecture provides layers of light for general activities and the ability to adapt to the ever-changing modern art collection. Blurring traditional roles, we developed and detailed custom recessed metal slots and boxes to house lengths of busway and, in some cases, indirect up lighting, creating custom recessed luminaries tailored to the architectural design. Lighting becomes art with fiber optic tentacles in the guest bath and glass spheres dividing the living and dining areas.