It's really about being creative and free in your design thought. Does it really make sense to have a park table in your kitchen. Sure it does, it seats 4 comfortably. The toilet facing the kitchen is daring, my mind flexes imagining how that would work when a guest has had too much to drink as dinner is being prepared. "Food smells great, pardon me."
But hey, the design is beautiful and inspiring. The stairs are especially cool. Looks like a few pieces of lumber from ReBuilders Source will get you started nicely...
ReBuilders Source 461 Timpson Place
Bronx, New York 10455