When I place a new road or a building in a section I had previously zoned for RCI space, sometimes the new structure overlaps an existing RCI building. Simcity seems pretty relaxed about this, only highlighting the structure in yellow as I place the new structure, but not warning me excessively. When I finalize the placement of this new road or building, the RCI buildings that are highlighted are destroyed.
This usually fixes itself, a new RCI building is built in the reduced space now available. But should I avoid this? Does it cause any, to borrow a DF term, unhappy thoughts in my Sims?