A minimum thickness, low activation toroidal field coil design concept is presented. The concept is consistent with the low activation fusion reactor design requirements suitable for STARFIRE type devices. The design approach consists mainly of replacing the high activation components such as stainless steel structure and copper stabilizer in the high flux region of the TF coils by low activation components such as aluminum alloy structure and aluminum stabilizer, while leaving the core of the coils unchanged from earlier designs. The resulting low activation front regions will reduce the dose level due to its lower residual activity and the fact that it is acting as a shield between the high activity core and the personnel access area. The cross sectional areas required for various low activation TF coil options were compared in order to develop a design that fits within the very constrained space suitable in the inboard region of a tokamak reactor.