It looks great as usual. The secret passage could be the seed of a low level adventure, anything from a blackmailing peeping top innkeeper to a group of thieves preying on passing adventurers to a vampire sneaking in at night.
I have over several hundred tabletop maps that I've purchased or found and this is by far the finest one I've ever seen for an inn. The first floor has a very sensible layout and doesn't seem too cluttered while also including living arrangements for the owner and perhaps some of his staff. I enjoyed the inclusion of a balcony as well. I also really like that there are various different kinds of rooms to suit people of different class and wealth. Adventurers may rent out one of the twin rooms or one of the private rooms, while merchants and commoners may rent one of the rooms in the communal room (the one with 5 beds). Its got several nice private rooms and the colors work well.
Outstanding map! It would only be made perfect if you had a menu now!