to develop commercial building land; develop projects; prepare or carry out construction projects as a builder in his own name for his own or third-party account, using the assets of purchasers, tenants, tenants or other beneficiaries or applicants for acquisition or use rights; preparing or carrying out construction projects as a construction supervisor in a foreign name for third-party account; to mediate the conclusion of contracts for land, rights, industrial premises or residential premises with similar rights, or to prove the opportunity to conclude such contracts.