Usually when we think of bringing an architect to a viewing, it’s because the property is in serious need of TLC. This two-bedroom, one-bath co-op at 509 west 122nd Street near Columbia University in the heart of Morningside Heights is move-in ready, with pre-war details and a modern remodel. But the bath is somewhat exiled on a complicated path to any bedroom on the floor plan, the living and dining rooms and the kitchen that serves them don’t seem to be on speaking terms–and inspiration from a pro can’t hurt. And while it won’t kill anybody, at the very least this pretty co-op’s new owner should throw away the floor plan and wing it. At least there’s an elevator.