62 Management OPEK is a completely independent project that runs without any staff support from the city administration. The city supports their efforts with finance and expertise. To manage their daily practice in the building, every organisation contributes an annual fee to TPAKT Infra. Entering OPEK, you could run into theatre company het Nieuwstedelijk, youth dance & theatre company fABULEUS and art educational organisations Bamm!, Artforum & Wisper, united in TPAKT Infra. These frontrunners were joined by other social and cultural organisations in need of affordable space, many of which later became permanent inhabitants of the building. In 2009, TPAKT Infra signed a lease with the city, which later turned into a ground lease for 36 years. A ground lease is one way of reinforcing the role of civil society in heritage governance. The ownership and responsibility of conversion and conservation lies with TPAKT Infra.