Hochbunker Körnerstraße / bunker k101
Former air-raid shelter in Cologne-Ehrenfeld, now a listed cultural and memorial venue known as bunker k101.
The Hochbunker Körnerstraße in Cologne's Ehrenfeld district was built in the 1940s as an air-raid shelter and today serves as an art and memorial venue under the name bunker k101.
At a Glance
- Location
- Körnerstraße (between no. 91 and 113), Cologne-Ehrenfeld
- Built
- 1942/1943, probably completed in February 1943
- Architect
- Hans Schumacher (Cologne), who designed seven bunkers in the city in total
- Structure
- three-storey reinforced-concrete high bunker, 50.3 × 15 m, 1,700 m² of floor space, hipped roof
- Capacity
- 1,500 places, at times vastly overcrowded with up to 7,500 people
- Listed
- protected monument since 25 April 1995 (no. 7443)
- Operator today
- Förderkreis Hochbunker Körnerstraße 101 e. V.
- Website
- bunkerk101.de
The Building
The free-standing structure has an extended rectangular footprint and stands with its long side parallel to the street. It is made of bare reinforced concrete and carries a tiled hipped roof. The ceiling beneath the roof and the base slab are each 1.4 metres thick; the basement walls measure 1.8 metres and those of the upper floors 1.1 metres.
Fresh air entered through multiply angled openings on the upper floors. The ventilation created a slight overpressure that, together with a gas lock, was intended to keep gas from seeping in; during an attack the openings were plugged from inside. Power came from the public grid, and phosphorescent markings showed the way during outages.
Construction and Wartime Use
The bunker was built on a plot next to the site of the Ehrenfeld Synagogue, which had been destroyed down to its outer walls during the November pogroms on the night of 10 November 1938. The adjoining garden plot was expropriated and forcibly auctioned in 1939 and, from December 1940, placed at the disposal of the Nazi "Führer emergency programme".
During the last two years of the war the bunker sheltered civilians from air raids – Ehrenfeld was targeted by Allied bombing 55 times. Residents held a bunker pass with an assigned place. Jews, Sinti and Roma, and forced labourers were barred from seeking shelter here. In 1944 the two Edelweiss Pirates Franz Rheinberger and Bartholomäus Schink met in this bunker, which thereafter served the group as one of its meeting points.
The Post-War Years
After the war the building first housed released prisoners of war and then, until the mid-1950s, families made homeless by the bombing. In the cramped mass shelter, where many traumatised people lived side by side, conflicts were frequent and poor hygiene encouraged the spread of head lice, among other things. The building was later used to store furniture. A memorial plaque installed in 1964 long created the false impression that the bunker stood on the synagogue plot; it was eventually taken down and replaced by a plaque at the correct former location.
A Cultural and Memorial Venue Today
The first artistic use took place in 1981, when Daniel Spoerri staged the action "Promenade sentimentale" with his students. After years of campaigning by Ehrenfeld artists – in 2011 a project group collected around 2,000 signatures against an impending sale – the "Förderkreis Hochbunker Körnerstraße 101" association was founded in 2012 and now rents the building from the federal government. In 2013 it reopened to the public as bunker K101. Since then artists living in Ehrenfeld in particular have exhibited here, with a growing emphasis on electronic art. Each year on 10 November a silent march organised by the alliance "Ehrenfeld gegen Rechtsextremismus" sets off from the bunker to the memorial in Schönsteinstraße for the executed Edelweiss Pirates and forced labourers.
Good to Know
On 12 November 2025 the association received the Rheinlandtaler of the Landschaftsverband Rheinland (LVR) for its commitment to remembrance culture and its work in the neighbourhood.
Gallery
Map
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Address
Körnerstraße 101
50823 Köln
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Sources & links
- Official website
- Wikidata (retrieved 2026-08-11)
- Wikipedia (retrieved 2026-08-11)
Auto-generated, last verified: 2026-08-11
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