Gashouder opened as a 19th century gas storage drum. By the 1990s it had a second identity as the round room where Amsterdam's biggest techno nights happened, the building ADE regulars called a temple, the venue that hosted Richie Hawtin and Jeff Mills sets that outsiders only knew from tracklists. This week Inside Outside, the Amsterdam studio run by Petra Blaisse, detailed a redesign of the building's interior that pushes it somewhere else entirely: a concert hall built to run year round, not a festival shell rented out five nights in October.
The timing is the detail the trade press missed. ADE's 30th edition, 21 to 25 October 2026, programmed Gashouder for what organisers called its pre-opening season, meaning the venue hosted the festival's biggest room before this redesign was finished and before the building's new identity as concert infrastructure was public. Amsterdam's transit operator GVB extended night bus hours for the festival's final night, the one that landed on the clock change to winter time, pushing the last services to 03:00 new time. ADE treated Gashouder as a techno venue on loan. Inside Outside's work, filed the same week, treats it as a permanent hall.
Blaisse has worked this site before. Her studio did acoustic and textile work across Cultuurpark Westergas through the 2000s, so this redesign sits on top of a relationship with the building that predates its techno years by nothing: the gasholder was never purpose built for a soundsystem. It was adapted for one, informally, by promoters who needed a big round room and didn't ask the architecture to agree. What Inside Outside has done now is make the room agree. Drapery, sightlines and acoustic treatment read as concert hall decisions, built for a programme of orchestral and amplified sound in the same calendar year rather than a single genre colonising a found space.
The gap worth naming is between what the building is called and what it has become. Promoters and journalists still reach for temple, techno cathedral, the vocabulary built by two decades of ADE and Awakenings coverage. Inside Outside's brief describes acoustic engineering for a mixed programme. Gashouder's own booking calendar for the coming season, due from Cultuurpark Westergas before next spring, will be the document that settles which description the building actually answers to now.