Conn. Gen. Stat. § 47a-5: (Formerly Sec. 47-24a). Penalty for allowing occupancy without certificate of occupancy.

In any borough, city or town which requires a certificate of occupancy prior to human habitation of any building located therein, if any building is occupied in whole or in part without such occupancy permit, the owner or lessor of the premises shall be liable for a civil penalty of not more than twenty dollars per day, per apartment or dwelling unit, for not more than two hundred days for such period of unlawful occupation.