The city of Lille in Northern France aims to develop into a business center rivaling London or Brussels. OMA, the office of Rem Koolhaas, has given form to this ambition in the Euralille master plan. It was a largescale and complex design assignment. The Euralille dossier - part of the OMA archive - has been inventoried and made accessible.

The exhibition Piet Sanders: a Dream Collection (2015/2016) presented a number of the architectural models Sanders has donated to the NAI from his private collection. The makers of the models include Asymptote, Peter Eisenman, John Hejduk and Daniel Libeskind. The library has also regularly benefitted from Sanders' generosity over the years. In addition, the NAI has made a small selection from his donations consisting of publications by and about a designer in whom Sanders took a particular interest: the American architect John Hejduk (1929-2000).

March 2004 the NAi transferred the entire archive of Rem Koolhaas/OMA from the collection depot to the exhibition gallery. The exhibition START showed archival material stretching for a length of 105 metres. The NAI took this opportunity to demonstrate how it manages and preserves cultural heritage. This heritage is made up of not only historical archives but also the archives of contemporary architects whose future importance is already evident.