The building consists of two residential towers of twenty-three floors each: Boston and Seattle. The towers are being constructed on the north side of the Wilhelminapier, between the Luxor Theatre and the New Orleans tower. The building is located next to the Rijnhaven, parallel between the Antoine Platekade and the Otto Reuchlinweg and between the Van der Hoevenplein and the De Monchyplein.
In addition to 220 apartments that can be bought or rented and 1,500 m2 on the ground floor dedicated to stores and food service establishments, the building features private parking for residents and a subterranean public parking structure with two levels. Between the two towers, a roof garden covered in sedum, moss and herbs will be constructed on top of the fifth floor. The striking entrances to the Boston and Seattle towers are located on the ground floor, facing the Van der Hoevenplein and the De Monchyplein.
The building was designed by Frits van Dongen and Patrick Koschuch – architects working at Van Dongen-Koschuch Architects and Planners. Characteristics include the use of natural-looking materials like dimension stone, acomposite, sand-coloured façade and bronze-coloured window frames. The images incorporated in the lamination panels of the façade depict the harbour and the rich history of the Holland-America Line. This architectural detail largely obscures cars parked on the first to fourth floor from view.