Do we need to be on a tour to see this house?

Yes, for the inside

Yes. The internal tour is guided. There is a self guided tour of the area where can see, from the road, other of his designs. This is an additional $10 and worth doing.

You need to pay to tour the inside. The tour guides are very passionate and what you see is worth the admission. You can also pay for an additional self-guided audio tour of the neighborhood.

Yes