The City of Saskatoon's building standards branch is the source for a specific quote on any given file, since they can tell you exactly what is outstanding and what closing it requires. Budgeting separately for a $400 to $600 home inspection is still worthwhile, since it can flag related issues the permit file alone would not show.
Unpermitted work, as opposed to a permit that is simply open, is usually the more expensive case to resolve, because bringing a wall, suite or structural change into compliance after the fact can mean redoing parts of the original work rather than just scheduling an inspection.
Get the specific scope and cost from the City of Saskatoon before you price the fix into a sale. Get your hand-reviewed valuation from Joel Dyck.