It is hand-painted terracotta and it was made and custom colored by a company called Tabarka. Check out the laundry room in this house, it's tiled in the same pattern with more red added into it. If you poke around in the questions asked about other photos in this project, designer Anne Sneed gives the exact link somewhere ... click on More Info below and then look at the Other Photos in This Project. And stay tuned for a full Houzz Tour under "Stories" in the next week or so - I'm working on it :)