On the occasion of the 20th anniversary of the inscription of the Grand-Place on the UNESCO World Heritage list, the City of Brussels gave 21 Solutions the task of organising a symposium entitled ‘L’Hôtel de Ville de Bruxelles – Bilan de trois années d’études du bâti’. The symposium focused on archaeological and historical research carried out on the Town Hall from 2015 onwards and on the resultant new findings; its proceedings were presented in a special issue of the journal Studia Bruxellae, published by the Museums and Archives of the City of Brussels and coordinated by 21 Solutions.
‘L’Hôtel de Ville de Bruxelles – Bilan des trois années d’études du bâti’, Studia Bruxellae2018/1 (no. 12), Musées et Archives de la Ville de Bruxelles.’