Historically, daylighting design has required time intensive analysis relegating it as a reactive validation reserved for projects with extended design schedules and larger budgets. However, environmental analysis is critical to meeting increasingly stringent energy codes and forward-thinking sustainability targets like the 2030 challenge. In order to effectively influence a project, this analysis must be provided early in the design process when architects are shaping massing, orientation, program, and facade development. Parametric computational tools enable meaningful daylighting analysis to move at the speed of design. The responsiveness and flexibility of new parametric visual scripting interfaces allow daylighting design to provide customized analysis; from a validation task focused on crunching numbers to a holistic design partnership directed at surgically improving the overall design quality. This presentation will examine the partnership between architect and lighting designer focusing on one case study as the speakers describe the tools and workflow utilized and how this process allows daylighting design to be feasible, accessible, and valuable to a broad range of project types.