Remment Koolhaas, usually abbreviated to Rem Koolhaas, was born on 17 November 1944 in Rotterdam, Netherlands, to Anton Koolhaas (1912–1992) and Selinde Pietertje Roosenburg (born 1920). His father was a novelist, critic, and screenwriter. Two documentary films by Bert Haanstra for which his father wrote the scenarios were nominated for an Academy Award for Documentary Feature, one won a Golden Bear for Short Film. His maternal grandfather, Dirk Roosenburg (1887–1962), was a modernist architect who worked for Hendrik Petrus Berlage, before opening his own practice. Rem Koolhaas has a brother, Thomas, and a sister, Annabel. His paternal cousin was the architect and urban planner Teun Koolhaas (1940–2007). The family lived consecutively in Rotterdam (until 1946), Amsterdam (1946–1952), Jakarta (1952–1955), and Amsterdam (from 1955).

His father strongly supported the Indonesian cause for autonomy from the colonial Dutch in his writing. When the war of independence was won, he was invited over to run a cultural programme for three years and the family moved to Jakarta in 1952. “It was a very important age for me,” Koolhaas recalls “and I really lived as an Asian.”

He was a journalist in 1963 at age 19 for the Haagse Post before starting studies in architecture in 1968 at the Architectural Association School of Architecture in London, followed, in 1972, by further studies with Oswald Mathias Ungers at Cornell University in Ithaca, New York, followed by studies at the Institute for Architecture and Urban Studies in New York City.

In 1969, Koolhaas co-wrote The White Slave, a Dutch film noir, and later wrote an unproduced script for American soft-porn king Russ Meyer.

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 Costantino Dardi [it], Frank Gehry and OMA were the only ones that did not employ Post-Modern architecture motifs or historical references.

With his Prada projects, Koolhaas ventured into providing architecture for the fleeting world of fashion and with celebrity-studded cachet: not unlike Garnier’s Opera, the central space of Koolhaas’ Beverly Hills Prada store is occupied by a massive central staircase, ostensibly displaying select wares, but mainly the shoppers themselves. The notion of selling a brand rather than marketing clothes was further emphasised in the Prada store on Broadway in Manhattan, New York, which had previously been owned by the Guggenheim: the museum signs were not removed during the outfitting of the new store, as if emphasizing the premises as a cultural institution. The Broadway Prada store opened in December 2001, cost €32 million to build, and has 2,300 square meters of retail space.

In 2003, Content, a 544-page magazine-style book designed by &&& Creative and published by Koolhaas, gives an overview of the last decade of OMA projects including his designs for the Prada shops, the Seattle Public Library, a plan to save Cambridge from Harvard by rechanneling the Charles River, Lagos’ future as Earth’s third-biggest city, as well as interviews with Martha Stewart and Robert Venturi and Denise Scott Brown.

In 2005, Rem Koolhaas co-founded Volume Magazine together with Mark Wigley and Ole Bouman. Volume Magazine – the collaborative project by Archis (Amsterdam), AMO Rotterdam and C-lab (Columbia University NY) – is a dynamic experimental think tank devoted to the process of spatial and cultural reflexivity. It goes beyond architecture’s definition of ‘making buildings’ and reaches out for global views on architecture and design, broader attitudes to social structures, and creating environments to live in. The magazine stands for a journalism which detects and anticipates, is proactive and even pre-emptive – a journalism which uncovers potentialities, rather than covering done deals.

Probably the most costly and celebrated OMA projects of the new century were the massive Central China Television Headquarters Building in Beijing, China, and the new building for the Shenzhen Stock Exchange, the equivalent of the NASDAQ in China. In his design for the new CCTV Headquarters in Beijing (2009), Koolhaas did not opt for the stereotypical skyscraper, often used to symbolise and landmark such government enterprises; he patented a “horizontal skyscraper” in the U.S. The building, popularly called “The Big Pants” by Beijing residents, was designed as a series of volumes which attempt to tie together the numerous departments onto the nebulous site, but also introduce routes (again, the concept of cross-programming) for the general public through the site, allowing them some degree of access to the production procedure. An unfortunate incident that highlighted the folly of the circulation scheme (no effective fire egress for people on the upper floors), was the construction fire that nearly destroyed the building and a nearby hotel in 2009.

Koolhaas was previously married to Madelon Vriesendorp, an artist who is the mother of his two children, Charlie, a photographer, and Tomas, a filmmaker. Koolhaas divorced Vriesendorp in 2012. He has known his current partner Petra Blaisse, an interior and landscape designer since 1986.