Chatham House Chatham House The Royal Institute of International Affairs, commonly known as Chatham House, is a not-for-profit and non-governmental organisation based in London whose mission is to analyse and promote the understanding of major international issues and current affairs. It is the originator of the Chatham House Rule and takes its name from the building where it is based, a Grade I listed 18th-century house in St James's Square, designed in part by Henry Flitcroft and occupied by three British prime ministers, including William Pitt, 1st Earl of Chatham. In the University of Pennsylvania’s rankings (announced in January 2017) for their
Chatham Center parking garage. Chatham Center Chatham Center is a 5.5 acre commercial and residential building complex located within Downtown Pittsburgh. It is bounded by the Interstate 579 (Crosstown Boulevard) on the west, Centre Avenue on the north, Washington Place on the east, and Fifth Avenue to the south. Comprising a 2,200 car parking garage, Marriott Hotel, World Trade Center, luxury condominium building, and office and retail space, Chatham Center is a major destination center with PPG Paints Arena and Duquesne University nearby. Chatham Center was named after the Earl of Chatham, William Pitt, for whom Pittsburgh is named. Groundbreaking for the