3 World Trade Center

175 Greenwich Street - Concept

The design concept for the 71-storey tower addresses its central position on the WTC site. The building has an orthogonal relationship to the main space between the proposed memorial water pools. To complement this relationship, the central zone of the building has been reduced in mass as it rises towards the sky. The effect is a stepped profile which accentuates the building’s verticality relative to the Memorial site. 175 Greenwich Street is also distinguished from the designs of the surrounding buildings by its antennae, which add height and by day and night give the building a distinctive profile when viewed both in the local context and at a distance as part of the Manhattan skyline.

The main components of the concept include five trading floors, 54 office floors (totalling 2.1 million sq ft) and five retail levels, as well as eight mechanical floors which serve the trading and office floors, 37 passenger lifts and two principal stairwells.

The lower part of the building – the ‘podium building’ – contains the tower’s retail element and the trading floors the upper levels of the tower hold the office space.

The ground floor, at street level, will have ‘live’, active façades which will enable the free-flow movement of shoppers. There will be two below-grade retail levels and three retail levels above the ground floor, and these will served by two lifts and four stairwells. The ground-floor lobby, which is on Greenwich Street, will offer visitors and tenants a ‘big picture window’ onto the WTC memorial.

To maximise sustainability in terms of the building’s day-to-day functioning, similar ‘green design’ features as those included in the design of 7 World Trade Centre have been incorporatedThe design team are committed to ensuring that energy use and costs could be significantly reduced compared to typical Manhattan office buildings.

It is hoped that 175 Greenwich Street – like 7 WTC – will be certified under the US Green Building Council’s Leadership in Energy and Environmental Design (LEED) programs.

The antennae act as light beacons during hours of darkness which will complement the light sources emanating from the top of Freedom Tower and the other towers around the site

The location of the Tower’s strong interface with the public realm along Cortland and Dey Streets, which will be redeveloped into pedestrian areas, will make the building highly accessible to shoppers using the retail facilities.

The glass facade and view onto the memorial is respectful of the WTC site and a constant reminder to passers-by of the function of the building.