I'm a little confused on how this works, which is possibly expected. In particular, what about recurrence Echoes?

Suppose I'm playing Harry Potter, and my suggestion of Gringott's Bank gets selected. When the bank shows up, would Harry be ineligible to get recurrence Echoes triggered solely by its presence? Alternately, should I indicate in my proposal what sort of Echoes I'd expect it to be likely to prompt in him?