Ten years ago, Sebio had fairly modest buildings and homes with simple architecture and was surrounded mostly by woods. Since then, they have updated to larger buildings with architecture similar to that of other Dressrosa towns like Acacia. They also have a sizable port.
The names of three particular towns in Dressrosa may be based on actual Spanish cities, what would match the general inspiration that seeps from the island towns, architecture, cuisine and culture. Those would be Balsa (from Barcelona), Sevio (from Sevilla) and Carta (from Cartagena).