Section 481 - Plans and specifications1.(a) No combined occupancy structure shall be acquired, leased, erected, repaired, enlarged or remodeled by the fund until the detailed plans and specifications and cost estimates for the school portion thereof have been submitted to the board of education and its approval has been endorsed thereon.(b) The board of education shall also review and approve the architectural concept, including an outline of the plans and specifications therefor, of the non-school portion of any combined occupancy structure to be erected, repaired, enlarged or remodeled in accordance with the provisions of any lease or other agreement between the fund and any developer.2. Notwithstanding any other provision of law applicable to the city school district of the city of Yonkers or the board of education of the city of Yonkers, such district and such board shall only be required to submit an outline of the plans and specifications for a combined occupancy structure, and for the school portion thereof, to the commissioner of education for his information.3. Every contract, lease or other agreement executed by or on behalf of the fund which makes provision for the construction, acquisition, reconstruction, rehabilitation or improvement of the school portion of any combined occupancy structure shall include a provision that the architect who designed the facility, or an architect or engineer retained specifically for the purpose of supervision, shall supervise the work to be performed through to completion and shall see to it that the materials furnished are in accordance with the drawings, plans, specifications and contractual provisions therefor.