Conn. Gen. Stat. § 51-190a: (Formerly Sec. 51-161). Filing of papers upon decision.

(a) In the trial of an action before a judge of the Superior Court that might have been brought to the Superior Court, the judge, when a decision has been reached, shall file the papers in the action and a memorandum of decision with the clerk of the Superior Court who would have been the custodian thereof had the action been tried by the court in the judicial district.

(b) In the trial of an action before a judge of the Superior Court that could not have been brought to the Superior Court, the judge, when a decision has been reached, if the action relates to an interest in land, shall file the papers in the action and a memorandum of decision with the clerk of the superior court in the judicial district in which the land affected is located.

(c) When an action is tried by a judge of the Superior Court other than those mentioned in subsections (a) and (b) of this section, and it is not otherwise provided by law where the papers shall be filed, the judge, when a decision has been reached, shall designate a clerk of the Superior Court with whom the papers shall be filed and shall thereupon file the papers and a memorandum of decision with the clerk.

(d) The clerk of the Superior Court with whom the papers and memorandum of decision are filed pursuant to this section is the lawful custodian thereof.