Would it be all right if I came to your office tomorrow morning?
Literal
Tomorrow [possessive-の] morning, office [direction-の-ほう-へ] [humble-お伺いして] good [tentative-でしょうか].
お伺いする is double-humble: お + 伺う (humble for 'visit/ask') + する. のほうへ ('in the direction of') softens the directness of the destination. よいでしょうか is a tentative permission question — 'would it be acceptable?' The overall register is keigo-level politeness.