Drawn back to New York after years in Europe, Donelle Kosch gravitated toward Boerum Hill, transforming 450 square feet into a place she could live and entertain guests.

Designed by the firm Dunham Robinson, Donelle Kosch’s Brooklyn studio apartment includes a dining area with a custom banquette and expandable table.Credit...Hanna Grankvist

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By Tim McKeough

After attending college at the New School in New York, Donelle Kosch lived in Copenhagen and Berlin before finally settling in Amsterdam, where she married a Dutchman.