Located in a prestigious diplomatic corridor just off First Avenue and East 49th Street, this pre-built office space offers a rare combination of layout flexibility, natural light, and institutional-grade infrastructure. Delivered in a clean white-box condition, the suite spans the northeast corner of the building and features oversized windows along two full sides, flooding the space with daylight and unobstructed city views, including skyline exposure to Midtown and the East River. The unit is available for a 7 to 10-year lease term, with the landlord offering a custom-built installation tailored to the tenant’s exact programmatic needs—whether that includes private offices, conference rooms, meeting areas, or open bullpen workspace.

Upon entry, tenants are welcomed into a bright, open-plan environment with polished concrete floors, exposed ceilings, and generous slab-to-slab height that invites further customization. The perimeter is wrapped in full-height windows, offering dual exposures and high visibility that will appeal to both consular missions and institutional tenants. The rectangular layout allows for an efficient build-out of perimeter offices along the window lines while maintaining an open core for collaborative or support areas. In its current configuration, the unit is raw, presenting a blank slate for tenants to define their own workspace requirements. With column spacing that avoids obstructions in key build-out zones, this suite supports both segmented private room layouts and contemporary open-plan strategies.

The building itself, 866 United Nations Plaza, is a renowned address that houses several diplomatic missions including the Missions of Finland and Japan to the UN, the Consulate General of Chile, and the United Nations itself. Ground-floor retailers include Citibank and Diplomatic Lifestyles, enhancing both the security and the profile of the building. Entry is through a modern attended lobby with glass security turnstiles and professional finishes, and the elevator banks are served by a full modernization. Ideal for consular, legal, or nonprofit institutions that value both privacy and prestige, this offering delivers a high-security Midtown East address in a purpose-built diplomatic environment.

Notes: First Avenue & 49th Street, Landlord will build to suit