The Ta 254 would have been a high-wing monoplane with retractable tricycle landing gear. It was to have been powered by either two Daimler-Benz DB603E, Daimler-Benz DB 603L or Jumo 213Es piston engines. The main difference from the Ta 154 was to have been long-span wings, and it was intended to produce both day and night fighter variants.