London’s skyline is on the verge of a historic shift that will redefine how we look at our capital. Plans have officially been greenlit for “One London,” a monumental £1 billion skyscraper set to rise in the heart of the City, strategically positioned between the iconic Cheesegrater and the Gherkin. Replacing the aging St Helen’s Tower, this project is far more than just another office block; it is designed to be the tallest building in the entire United Kingdom. By exceeding the height of The Shard by a mere six centimeters, it claims a symbolic crown, marking a new chapter in London’s architectural evolution and solidifying the city’s status as a global powerhouse.
The vision behind this structure, helmed by Aroland Holdings and brought to life by the visionary team at Eric Parry Architects, is defined by ambition and connectivity. Rising to a staggering 1,106 feet, the tower will feature a unique design of three “stacked” buildings, creating a rhythmic profile that breaks the monotony of traditional skyscrapers. While the exterior will surely dominate the skyline, the developers have placed a heavy emphasis on opening the space up to the people. By integrating public gardens, educational facilities, and communal areas, the project aims to bridge the gap between the corporate elite and the general public, ensuring the tower feels like a living, breathing part of the city rather than a gated monument.
Perhaps the most exciting element for residents and visitors alike is the commitment to public accessibility at extreme heights. The top of One London will house Europe’s highest viewing gallery, offering an unparalleled 360-degree panorama of the London sprawl. Beyond mere sightseeing, the inclusion of dedicated educational spaces on levels 72 and 73, managed in collaboration with the London Museum, invites families and students to engage with the city’s heritage from a literal birds-eye perspective. On level 71, London’s highest public bar will provide a social hub, while the 11th floor will feature an expansive, free-to-access elevated public garden—an urban sanctuary nestled in the clouds.
The transformation extends far beyond the high-altitude viewing decks; the ground level is also receiving a massive overhaul to encourage pedestrian engagement. The plans account for over 42,000 square feet of public space, providing a much-needed breathing room in the dense urban core of the Square Mile. With 350 outdoor seats, the base of the tower is designed to be a bustling social plaza where the hum of city life can continue at a human scale. This commitment to ground-level vitality addresses the common criticism that modern skyscrapers often feel disconnected from the streets below, creating a seamless flow from the pavement to the sky.
Reflecting on the project, architect Eric Parry speaks of One London as a physical bridge between the city’s ancient roots and its future potential. Occupying the center of the Roman “Square Mile,” the tower sits at the nexus of two millennia of architectural history. Parry views the building not as an imposition, but as a deliberate evolution—a “metamorphosis” that highlights London’s capacity to reinvent itself while respecting the layers of history that came before. It is intended to be a confident declaration of London’s endurance, standing tall as a testament to the city’s willingness to adapt while remaining the heartbeat of global enterprise.
While we still have some time to wait before we can step into this new landmark, the timeline is now firmly in place. Construction is scheduled to commence in 2028, with the ambitious goal of completing the structure by 2033. As London’s urban fabric continues to change—evidenced by the ongoing repurposing of the iconic BT Tower into a luxury hotel—One London represents the most significant chapter yet. It promises to be more than just a place to work; it is being crafted as a destination, a vantage point, and a public gift that will likely change the way Londoners experience their own city for decades to come.
