Update uw browser voor de beste gebruikerservaring, of contacteer ons voor een ouderwets analoog gesprek via +31 20 420 8890 of

Wij adviseren de laatste versie van Google Chrome:


Update your browser to get the best experience, or contact us for an old-fashioned analog conversation via +31 20 420 8890 or info@kossmanndejong.nl

We recommend using the latest version of Google Chrome:


Super exiting moment discovering the panels of the « 4 visions on the Anthropocene » box we made for the Vienna Biennal 2021! Work in Progress

12.05.2021 at 12:00 by Lea Chenot


A big empty space, right before installing all exhibits at WeTheCurious! Project What If

01.02.2021 at 12:19 by Ina Meininghaus


Safety vs. functionality: looking for the best headphones to use in a factory Expedition HVC

07.01.2021 at 17:39 by Roel Bolhuis


The new temporary exhibition in House of European History is 'under construction' Fake (f)or Real

07.01.2021 at 17:32 by Tsur Reshef


The last steps before the Coronel Pavilion at the Portuguese-Israeli Cemetery Beth Haim is opened! Coronel pavilion

29.11.2020 at 14:30 by Remco Swart


All in good hands with Fiction Factory Museum of the Mind

07.11.2020 at 17:32 by Femke Bijlsma


"Who Cares?" The first model for a personal story in the upcoming exhibition on the Mind Museum of the Mind

20.08.2020 at 11:45 by Robert van der Linde

Visiting Paleis Het Loo together with Ina, to get an impression of the new exhibition spaces that are currently under construction. Het Loo palace

22.06.2020 at 14:08 by Robin Schijfs


Last trip before Corona Lockdown: Usomo from Berlin calibrating their audio tracking system in the Polder of Texel next to the bunker. Torn Island

22.06.2020 at 10:32 by Michel de Vaan

How to become invisible? Prototyping together with WeTheCurious at Bruns Project What If

17.03.2020 at 15:33 by Ina Meininghaus


Prototyping a rainbow crystal sphere for one of the new exhibit constellations at WeTheCurious. Project What If

12.03.2020 at 09:51 by Ina Meininghaus


Workshop at IJsfontein together with the Museum of the Mind - Work in Progress Museum of the Mind

06.02.2020 at 12:26 by Julia Meyerrose


Typo test for Museum of the Mind Museum of the Mind

23.01.2020 at 09:19 by Sietske Sips


Julia sketching for the new permanent exhibition at the Museum of the Mind Museum of the Mind

22.12.2019 at 15:43 by Lieke Ketelaars


Walk-in interactive sound space demonstration by Usomo in our office in Amsterdam... Torn Island

16.12.2019 at 15:10 by Mark de Jong


David Vroom is taking new portrait images for our new website... In progress…

10.12.2019 at 15:10 by Lieke Ketelaars


This is the Introduction pavilion for the Beth Haim cemetery in TAPE Coronel pavilion

10.12.2019 at 10:05 by Herman Kossmann


Doing some research for a new project ;-) In progress…

19.09.2019 at 09:50 by Maaike Sips

Celebrating Diversity

The Madhouse

Museum Het Dolhuys, Haarlem (NL)

The first Dutch museum for psychiatry emerged from five historical collections of psychiatric hospitals in the Netherlands. When the Dutch National Health Service vacated the former lepers-, plague-, and madhouse in Haarlem, there was also a museum building.

Haarlem (NL)
Museum Het Dolhuys
2015, 2005
2500 m2
Concept, Spatial design, Graphic design
Nienke van den Berg (lead 2015), Robert van der Linde (lead 2005), Herman Kossmann, Caspar Conijn, Martijn Sas, Sietske Sips, Remco Swart
AV hardware
VHS bv
Carel van Hees
Sound productions
Het 5e kwartier
Content development
Stichting Pandora
Computer animations
Interior contractor
Background Designs
Peter van Beek
De Aanpak
What is normal and what is abnormal?

Already after the first brainstorms with specialists it became clear to us that the boundary between normal and abnormal is not always clear. One in four Dutch people need psychiatric assistance. What is crazy or normal differs per person, per culture and per time period. It was clear that only displaying the collection doesn’t do justice in any way to the complexity and urgency of the subject. A visit to the museum should be more about personal stories and individual encounters and less about objects.

“We wanted to use the fact that the building itself has had a psychiatric history for 700 years in our story. One way of connecting it to the story, was by applying text directly on the walls and doors.”

Robert van der Linde

Designer at KDJ

Different perspectives

The perspective of the narrative is very important for a subjective topic like psychiatry. Who is addressing the visitor? The psychiatrist, the patient, or the caregiver? Instead of an omniscient storyteller, we asked many people who have a connection to psychiatry to tell their story. These new ‘residents’ of the Dolhuys thus became the protagonists of the museum. The psychiatrists and caretakers were also given a voice.

What about you?

Everything in the museum is ‘real’, fragile, and intimate. The distance between yourself and the residents has been made as small as possible. You can unlock stories by opening doors, looking in drawers or ringing someone. You can also check your own mental health on a computer. You are constantly confronted with the question: how normal am I?


Psychiatry is about scars and imperfections. Together with the restoration architect, we agreed to leave as many visible imperfections in the building as possible. The overarching theme is that no one is perfect and that you cannot define what is normal. We have implemented that in our design everywhere, even in the cash register, the restaurant, and the toilets. From the furniture to the staff, everything and everyone is part of the experience. Everything feels a bit odd, and that’s totally normal.

“The labyrinth-like building is an important part of the exhibition experience. Also in your head you can wander around and get lost, so it fits the subject well here”.

Floris Mulder

curator Dolhuys


Europen Museum of the Year Awards 2007

Honourable mention

De Nederlandse Designprijzen 2005

Exhibition and experience design – Winner