The Block 300, formerly Robert Duncan Plaza, building was originally designed by ZGF for Melvin Mark Companies and later purchased by Kaufman Jacobs. In 2013, two-thirds of the tenant space in Block 300 was vacated when federal tenants relocated. Building upon our original design, ZGF was engaged to renovate the interior and to help reposition for the building as a Class A office space to attract new tenants. The renovated public lobby provides a welcoming approach from the street, featuring a modern interior that includes a lounge seating area and double-sided fireplace. The pass-through lobby has two entrances and uses accent lighting and wood to accentuate the space, as well as highly reflective surfaces to help provide volume. Hospitality was a key design goal; the concierge desk was designed to hide the necessary security equipment. Behind the desk is a living green wall, serving as a focal point and visible from the elevator bay and the large conference room off the lobby. The lobby also houses an interactive art installation that adds texture and interest, particularly for the children who attend the daycare located on the ground floor. The interactive display monitors people passing by via motion sensors and reflects the movement with light; it is the only North American commercial installation of a Phillips Organic Light Emitting Diode. The team incorporated numerous green updates into the design, which has achieved LEED Gold®.