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GFP creates affiliate to focus on development

Four-generation New York real estate firm has led major office‑to‑residential conversions
Brian Steinwurtzel will serve as chief executive of the newly created GFP Development. (GFP)
Brian Steinwurtzel will serve as chief executive of the newly created GFP Development. (GFP)
CoStar News
April 30, 2026 | 9:16 P.M.

GFP Real Estate, a four-generation New York family real estate firm whose portfolio includes the iconic Flatiron Building, has created a new affiliated company to house its “rapidly growing” development and construction business involving office-to-residential conversions and other large-scale development projects.

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