Plans for a £1.1bn extension of the British Library are officially moving ahead, with completion expected by 2032, the developer has confirmed.
The ambitious project will add 700,000 sq ft (65,090 sq m) of new library, research, learning, and commercial space at the site in King’s Cross. The expansion will also include a redesigned full-height foyer and improved public entrances.
Although Camden Council approved the latest version of the plans last July, Japanese developer Mitsui Fudosan has only now confirmed it will proceed with the project.
A transformative space for future generations
The British Library has hailed the development as a "groundbreaking new hub" designed to welcome future generations of visitors, learners, researchers, and entrepreneurs.
The extension, designed by architects RSHP and engineers Arup, will open up the library across three sides, introducing new public spaces and walkways that connect it to Somers Town and St Pancras.
As part of the agreement, the developers will contribute £23m towards affordable housing in Somers Town, with 35 new homes planned for the area.
Features of the expansion
The project will integrate new public spaces, commercial areas, and an underground section reserved for a potential future Crossrail 2 station. Above ground, additional cycle docking, upgraded pathways, and improved highways are also planned.
One innovative feature is the introduction of ‘incubator desks’ within the library’s business spaces—10% of which will be free for local residents.
Additionally, a new community garden on Ossulston Street will be created, with local residents involved in its design and upkeep.
Community concerns and developer response
While many welcome the expansion, the Somers Town Neighbourhood Forum, which represents local residents, has previously raised concerns about the impact on nearby housing and the temporary loss of a community garden during construction.
Mitsui Fudosan has reassured the public that the design prioritizes accessibility, connecting the library more seamlessly with the surrounding area.
Leadership perspectives
Rebecca Lawrence, chief executive of the British Library, highlighted the transformative impact of the project:
“These plans will further open up the Library, creating an expanded national institution with state-of-the-art spaces. We look forward to working with philanthropists, partners, and the community to build a dynamic new hub for science, innovation, and knowledge.”
Takeshi Iwama, chief executive of Mitsui Fudosan UK, emphasized the project’s significance:
“We are proud to invest in expanding one of the UK’s most important cultural institutions. We are also committed to ensuring that the benefits of this investment are felt both locally and globally.”
He added that the new commercial spaces are expected to attract leading life sciences companies to invest in the UK by the early 2030s.
Next steps
The next phase involves finalizing detailed designs. Developers have stated they aim to deliver the project with minimal disruption to library services and the surrounding community.
Once completed, the expanded British Library will stand as a state-of-the-art hub for knowledge, innovation, and research—cementing its role as a world-class institution for years to come. Photo by Mohammed abushaban, Wikimedia commons.