They are completely separate buildings. The only way it would affect you if you want to go relax in and enjoy the lobby (shopping/bar/restaurants), which is something a lot of visitors enjoy doing at The Grand. There has not been any information put out so far how it will be renovated (in sections, all at once, etc.) so it’s hard to say how much of an impact it would have. Below, I provided a map for a visual. The yellow circled area is the villas building, and the red circled area is the main building where the lobby is located. Hope that helps.
View attachment 736737