There are a lot of infrastructure needs specific to the F‑35. For example, there's a team for flight simulations. There are heating, ventilation and air conditioning needs as well as electrical supply requirements that are really specific to this equipment. Much more space is required for logistics and maintenance of the F‑35. There are also specific requirements for electricity, electrical power and heating, ventilation and air conditioning.
From a security standpoint, very heavy steel plates have to be used throughout the building envelope, which means a lot of extra costs.
We had to redesign the foundations, the columns and the beams because of the weight of those heavy steel plates that are on the building for security purposes.