Article 4

The aid involved in the Houses Contract consists of the profit that would have been derived by Habidite and the AFER group from the sale of the 1 500 houses ordered by the Diputación Foral de Bizkaia and BIZKAILUR S.A. under this contract. This profit is defined as the difference between the price obtained by Habidite from BIZKAILUR on the basis of Article A(e) of this contract and Habidite's own costs for the construction of the 1 500 houses.