Conn. Gen. Stat. § 4b-24b

(b) The commissioner may designate projects to be accomplished on a total cost basis for (1) new facilities to provide for the substantial space needs of a requesting agency, (2) the installation of mechanical or electrical equipment systems in existing state facilities, or (3) the demolition of any state facility that the commissioner is authorized to demolish under the general statutes. If the commissioner designates a project as a designated total cost basis project, the commissioner may enter into a single contract with a private developer which may include such project elements as site acquisition, architectural design and construction. The commissioner shall select a private developer from among the developers who are selected and recommended by the award panels established in this subdivision. All contracts for such designated projects shall be based on competitive proposals received by the commissioner, who shall give notice of such project, and specifications for the project, by posting notice on the State Contracting Portal. No contract which includes the construction, reconstruction, alteration, remodeling, repair or demolition of any public building for work by the state for which the total cost is estimated to be more than five hundred thousand dollars may be awarded to a person who is not prequalified for the work in accordance with section 4a-100 . The commissioner shall determine all other requirements and conditions for such proposals and awards and shall have sole responsibility for all other aspects of such contracts. Such contracts shall state clearly the responsibilities of the developer to deliver a completed and acceptable product on a date certain, the maximum cost of the project and, as a separate item, the cost of site acquisition, if applicable. No such contract may be entered into by the commissioner without the prior approval of the State Properties Review Board and unless funding has been authorized pursuant to the general statutes or a public or special act.