580 Fifth Avenue Lobby & Flagship Retail

The World Diamond Tower® building, originally constructed in 1925, is located on the corner of Fifth Avenue and West 47th Street in the heart of the Diamond District and the Fifth Avenue shopping district. By relocating the original lobby entrance and smaller retailers to the West 47th Street side, BBB created a new, modern, double-height lobby with upgraded security features. This freed up space on Fifth Avenue for a new flagship retail space. A new energy-efficient curtain wall system fills the existing 2-1/2-story high grand arched window openings. The curtain wall system utilizes oversized clear glass panels that meet the contemporary retailer's need for visibility coupled with a more traditional mullion framing system that aligns with the historic character of the building. The existing historic limestone facade has been restored and a modern glass canopy adorns the relocated and expanded lobby entrance. The project also includes a gut renovation and conversion of three floors of commercial space into large retail and office spaces.

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