Surface and subsurface

unseen opportunities for the city

Since 2008

Han Admiraal founded Enprodes in 2008. Since then he has become a globally known thought leader on the use of underground space. As chair of the International Tunnelling and Underground Space Association’s Committee on Underground Space (ITACUS), he is regularly invited to give keynotes, together with the ITACUS vice chair Antonia Cornaro.

On a professional level, Han Admiraal acts as a consultant for governments, contractors and engineering consultants. His primary focus is on how underground space can contribute to the sustainable development of resilient cities. Several more specific areas of expertise have developed from this, amongst them road tunnel safety and pipeline transport.

As an independent consultant, Han Admiraal is also regularly asked to chair panels or committees dealing with urban planning issues, safety and security issues, or future proof transport issues.

Han Admiraal is Chair of ITACUS and President of the Netherlands-Flemish Pipeline Industry Guild. He is also a European Tunnel Safety Officer, appointed to act in that capacity for the Kil Tunnel near Dordrecht, the Netherlands. In his spare time, he is active in the Scout and Guide Association of the Netherlands, serving as a Regional Chair for the Maasdelta Region and as a member of the National Council.

Based in Delft

Historically innovative


Delft is well known for its potteries and its historic town centre with typical Dutch canals. Historical figures that worked in Delft were: the lawyer and philosopher Hugo Grotius, the painter Johannes Vermeer, and the scientist Antony van Leeuwenhoek. Delft is also known for being the city where the members of the Royal Family, are buried in the crypt of the ‘Nieuwe Kerk’, the New Church. This tradition dates back to the 16th Century when William, Prince of Orange, was buried in the church after being assassinated in 1584, Delft at the time being the de facto capital of the newly independent Netherlands. In April 2015, the new underground Delft Railway Station was opened and the rail tunnel, replacing the elevated rail line that had cut through the town since the 1960’s, was named the William of Orange Rail Tunnel. The elevated rail line itself replaced the railway at grade that had been part of the Delft urban fabric since 1847.