In New York, dorms aren't just for college students, according to MarketWatch's Hana R. Roberts.

Increasingly, New Yorkers are turning to slick, luxurious communal-living setups. In the dorm-like buildings, adults well out of college share kitchens, living rooms and bathrooms, and everything from toilet paper to coffee to a cleaning service is included in the rent.

And, its not just singles renting in these spaces, as Alberts' example at co-living company Common shows.

Even couples are buying in. Australians Jordan Brown, 27, and Madeleine Kent, 24, share an apartment at Common with another couple because renting their own apartment as foreigners proved too complicated and costly.

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