How to repair holes in the floor and walls where I deleted an interior wall section -?

HI, I had my drawing finished with interior walls then decided to remove an L shaped section wall. I am left with the walls outline as a hole in the floor and all the adjoining walls have the section of wall faces missing. How do I patch these up and repair them?

Just the pencil tool draw a line along one of the sides of the hole, and it should fill in. You can then use the eraser tool to remove those extra lines form your floor.

It has probably happened because the walls and the floor were not created independently. If you group the walls and floors separately, it wouldn’t happen.