The trial court substituted its judgment for that of the defendant commission. It had no authority to do so. Belknap v. Zoning Board of Appeals, 155 Conn. 380, 384, 232 A.2d 922, and cases cited; see Hawkes v. Town Plan & Zoning Commission, 156 Conn. 207, 240 A.2d 914.

There is error, the judgment is set aside and the case is remanded with direction to dismiss the appeal.