Koolhaas first came to public and critical attention with OMA (The Office for Metropolitan Architecture), the office he founded in 1975 together with architects Elia Zenghelis, Zoe Zenghelis and (Koolhaas's wife) Madelon Vriesendorp in London. They were later joined by one of Koolhaas's students, Zaha Hadid – who would soon go on to achieve success in her own right. An early work which would mark their difference from the then dominant postmodern classicism of the late 1970s, was their contribution to the Venice Biennale of 1980, curated by Italian architect Paolo Portoghesi, titled "Presence of the Past". Each architect had to design a stage-like "frontage" to a Potemkin-type internal street; the façades by , Frank Gehry and OMA were the only ones that did not employ Post-Modern architecture motifs or historical references. thumb|Proposal for a barcode for the European Union, 2002. Other early critically received (yet unbuilt) projects included the Parc de la Villette, Paris (1982) and the residence for the Prime Minister of Ireland (1979), as well as the Kunsthal in Rotterdam (1992). These schemes would attempt to put into practice many of the findings Koolhaas made in his book Delirious New York (1978),Koolhaas, Rem (1978) Delirious New York: A retroactive Manifesto for Manhattan, Academy Editions, London; republished, The Monacelli Press, 1994, which was written while he was a visiting scholar at the Institute for Architecture and Urban Studies in New York, directed by Peter Eisenman.
Koolhaas first came to public and critical attention with OMA (The Office for Metropolitan Architecture), the office he founded in 1975 together with architects Elia Zenghelis, Zoe Zenghelis and (Koolhaas's wife) Madelon Vriesendorp in London. They were later joined by one of Koolhaas's students, Zaha Hadid – who would soon go on to achieve success in her own right. An early work which would mark their difference from the then dominant postmodern classicism of the late 1970s, was their contribution to the Venice Biennale of 1980, curated by Italian architect Paolo Portoghesi, titled "Presence of the Past". Each architect had to design a stage-like "frontage" to a Potemkin-type internal street; the façades by , Frank Gehry and OMA were the only ones that did not employ Post-Modern architecture motifs or historical references. thumb|Proposal for a barcode for the European Union, 2002. Other early critically received (yet unbuilt) projects included the Parc de la Villette, Paris (1982) and the residence for the Prime Minister of Ireland (1979), as well as the Kunsthal in Rotterdam (1992). These schemes would attempt to put into practice many of the findings Koolhaas made in his book Delirious New York (1978),Koolhaas, Rem (1978) Delirious New York: A retroactive Manifesto for Manhattan Academy Editions, London; republished, The Monacelli Press, 1994, which was written while he was a visiting scholar at the Institute for Architecture and Urban Studies in New York, directed by Peter Eisenman.