Prior to the issuance of a building permit by the Department for any development subject to the provisions of this Chapter, the applicant must execute a development agreement with the City regarding the specific requirements and restrictions for affordable housing. The applicant shall execute any and all documents deemed necessary by the City, including but not limited to, restrictive covenants and other related instruments, to ensure the continued affordability of the affordable dwelling units in accordance with this Chapter. The development agreement shall include, but not be limited to, the commitments and obligations of the applicant and shall incorporate the affordable housing plan and approval of that plan by the Planning Commission.