Option to Disable Built-In Invisible Walls

I wanted to model the interior of one of the other houses in House, but there’s an invisible wall that starts part way through the house that prevents me from doing that. I’d really appreciate if you could disable the invisible walls in condos or something, so they don’t obstruct some parts of the condos and so that you can make the out of bounds areas of condos like Suite and Resort accessible without needing teleporters.