On 05 December 2012 a new control tower of State Enterprise "Air Traffic Services Authority" was open in the airport area to improve aeronautical services quality and efficiency. The project complements naturally the development of the airport complex and has direct connection to the reconstruction and extension of Sofia Airport. With total floorage of 2 400 sq m and height of 50 m, the tower located north of Terminal 2 is in accordance with the latest tendencies in Europe and has more than 40-year lifetime.

To the west of the airport control tower “Lufthansa Technik Sofia” is located. The enterprise is the fifth highly competitive base for repair and maintenance of narrow-body aircraft established by Lufthansa Technik Group in Europe.