24=1, agree.

3 Castle Street (RB 68) seems to refer to the second one along, which has Castletown Brides shown in the photos and is currently labelled as 2 Castle Street.

5 Castle Street (RB 67) [Hawtons] is where the Garrison is now, but that's labelled as 3 currently. The Garrison seems to list itself as 5 (or 4-5) in various places.

Did they just number this side in odds? (in case they knocked the castle down at some point ;)