Holy Trinity Church was listed at Grade C by English Heritage on 14 September 1976, and was later upgraded to Grade II*. (Grade C, part of a mostly superseded scale used by English Heritage only for Anglican churches, is equivalent to the lower Grade II.) As a Grade II*-listed building, it is considered "particularly important ... [and] of more than special interest". In February 2001, it was one of 13 Grade II* listed buildings, and 535 listed buildings of all grades, in the borough of Hastings.
