Value-adding a unit to a multi unit in Allegheny County

[Kimberly Reed]

Anyone have experience adding a unit to a legal multi unit in Allegheny County? For example, if I were to add another unit to a legal triplex, by converting a basement into another unit, or adding an apartment over a garage, do I need to update anything with the county in regards to the occupancy permit? Or changing a duplex to a triplex? If so, what is that process, and could you give some insight into whether it is typically easy or difficult to do? Thanks!