My friend has done this with her island where half the villagers have occupations.
(did some renovating so a few screenshots are out of date for now) Welcome to Nara - the city of deer! DA-4201-1857-9987 Map: Beach Theater Community Center Academy SeaSide Cafe BBQ area Lawsons Convenience Store Karaoke Timbra's Spa Food Street Metro Station Wolfgang's Detective Agency...
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I'm not a big fan of the villagers that have houses that don't look like houses but some of them work as extra "buildings".
Gala's house is a bank
Sterling's house is a jail/police station
Raddle's house is a science class room
Eunice's house is a laundromat
Muffy's house is a dressmaker/seamstress