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William Cullum is an interior designer based in New York City. His interiors, traditionally influenced and modern in execution, are known for their imaginative use of texture, pattern and unconventional color. William finds inspiration in the history of a place, creating a narrative based on the architecture of a home and his client’s taste to create rooms that are nuanced, layered, and most importantly – personal.
William's Chelsea apartment was recently featured on the cover of the May 2026 issue of Elle Decor where he was also named a Rising Star.
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