Conn. Gen. Stat. § 7-339hh

(1) Costs of improvements made within the tax increment district, including, but not limited to, (A) capital costs, including, but not limited to, (i) the acquisition or construction of land, improvements, infrastructure, public ways, parks, buildings, structures, railings, street furniture, signs, landscaping, plantings, benches, trash receptacles, curbs, sidewalks, turnouts, recreational facilities, structured parking, transportation improvements, pedestrian improvements and other related improvements, fixtures and equipment for public use, (ii) the acquisition or construction of land, improvements, infrastructure, buildings, structures, including facades and signage, fixtures and equipment for industrial, commercial, residential, mixed-use or retail use or transit-oriented development, (iii) the demolition, alteration, remodeling, repair or reconstruction of existing buildings, structures and fixtures; (iv) environmental remediation; (v) site preparation and finishing work; and (vi) all fees and expenses associated with the capital cost of such improvements, including, but not limited to, licensing and permitting expenses and planning, engineering, architectural, testing, legal and accounting expenses; (B) financing costs, including, but not limited to, closing costs, issuance costs, reserve funds and capitalized interest; (C) real property assembly costs; (D) costs of technical and marketing assistance programs; (E) professional service costs, including, but not limited to, licensing, architectural, planning, engineering, development and legal expenses; (F) maintenance and operation costs; (G) administrative costs, including, but not limited to, reasonable charges for the time spent by municipal employees, other agencies or third-party entities in connection with the implementation of a district master plan; and (H) organizational costs relating to the planning and the establishment of the tax increment district, including, but not limited to, the costs of conducting environmental impact and other studies and the costs of informing the public about the creation of tax increment districts and the implementation of the district master plan;

(2) Costs of improvements that are made outside the tax increment district but are directly related to or are made necessary by the establishment or operation of the tax increment district, including, but not limited to, (A) that portion of the costs reasonably related to the construction, alteration or expansion of any facilities not located within the tax increment district that are required due to improvements or activities within the tax increment district, including, but not limited to, roadways, traffic signalization, easements, sewage treatment plants, water treatment plants or other environmental protection devices, storm or sanitary sewer lines, water lines, electrical lines, improvements to fire stations, and street signs; (B) costs of public safety and public school improvements made necessary by the establishment of the tax increment district; and (C) costs of funding to mitigate any adverse impact of the tax increment district upon the municipality and its constituents;

(3) Costs related to economic development, environmental improvements or employment training associated with the tax increment district, including, but not limited to, (A) economic development programs or events related to the tax increment district; (B) environmental improvement projects developed by the municipality related to the tax increment district; (C) the establishment of permanent economic development revolving loan funds, investment funds and grants; and (D) services and equipment necessary for employment skills development and training, including scholarships to in-state educational institutions for jobs created or retained in the tax increment district; and
nt projects developed by the municipality related to the tax increment district; (C) the establishment of permanent economic development revolving loan funds, investment funds and grants; and (D) services and equipment necessary for employment skills development and training, including scholarships to in-state educational institutions for jobs created or retained in the tax increment district; and

(4) Costs of improvements that are made outside the tax increment district for the renovation or rehabilitation of a housing development that is a set-aside development, as defined in subsection (a) of section 8-30g , for which development the deed covenants or restrictions that preserve such development as a set-aside development will expire in not more than three years, provided the costs of such improvements are paid pursuant to an agreement between the municipality and the owner of such development in which the owner agrees to renew such deed covenants or restrictions for not less than forty years.