The third floor, which had originally housed the employee cafeteria, had fallen into disrepair after various alterations and had to be completely reimagined. The firm studied modernist masters and Gordon Bunshaft’s personal residence when conceiving the design. The centerpiece of Lever Club is a bar surrounded by inviting lounge and cafe seating. Wood paneled volumes seamlessly integrate within the glass perimeter, offering views and access to an expansive outdoor terrace. The furnishings, largely bespoke, respond to and soften the hard edges of the architecture.

Panels integrated into the bar shelving facilitate transitions between day and night, while honed green stone walls and floors, aluminum accents, and rosewood paneling impart a timeless elegance. Private amenities, such as a dining room, outdoor garden areas, and versatile conference rooms, accommodate a variety of events, from co-working sessions to private dinners and collaborations of all scales. Most of the furniture in the bar and lounge areas, designed and produced by Marmol Radziner, is inspired by the building’s architectural details.

The green hues of Lever Club's pioneering facade are reflected in the marble flooring, which extends into the lounge area. Custom color-matched carpets in the lounge area complement the seating upholstered in a matching hue. The slender window mullions of the building inspired the proportions and design of the aluminum bases for the lounge's dining tables and chairs.