Expecting the residence to be around here with はず

Grammar Explanation: Expectation with はず

Cocoa gets lost looking for the residence she’ll be staying at. She stops by at a café to rest, and there she asks the barista about it.

ココア:: 「香風(かふう)さんちってこの近(ちか)くのはずなんだけど知(し)ってる？」; "The Kafuu residence should be around here, but do you know of it?"

Note the presence of なんだけど.