from a practical POV, i can see the benefit - downstairs toilet/shower, small office/storage
the space is about 2m wide. Suppose it will depend on the cost of the foundations living on a hill
That’s great but also turning the kitchen into a real social space for lots of people. Our place is too small for an island so it’s just a biggish room with large table and kitchen which has an uninterrupted flow through to the garden. Obvs we don’t have a social life now but the concept is solid.
For us it defo has been. While only a small increase in floor space it’s dramatically changed the way we use the space.