A major transformation is underway at one of London’s most iconic landmarks as plans progress for Greyfriars Square, a new public space adjacent to St Paul’s Cathedral. The ambitious project will create the City of London’s largest public open space, spanning approximately 3,500 square metres – equivalent to 12 tennis courts. Construction began on April 28, 2025, with completion expected by mid-2027 following a phased approach.
A landmark transformation creating London’s largest public square next to St Paul’s Cathedral, opening in 2027.
The development involves converting three traffic lanes at the south end of King Edward Street into pedestrian-friendly areas. Approximately 1,500 square metres of existing roads will be transformed into new pavement, replacing the 1970s multi-lane road system that currently dominates the area around St Paul’s. The changes aim to create a more welcoming, traffic-calmed walking environment in the Square Mile.
Greyfriars Square will feature numerous trees, flower beds, and public seating areas throughout the space. A dedicated children’s play area will be integrated within the square, along with rain gardens and a monastic garden located on the site of a historic monastery kitchen garden. The design pays homage to the site’s rich history, which includes Christchurch Greyfriars established in 1225 and later rebuilt by Sir Christopher Wren after the Great Fire of London. The project follows earlier successful transformations that converted a coach park into green oasis near the cathedral. These green elements are designed to function as a restful urban oasis amid the busy city surroundings.
The project includes approximately 800 metres of new east-west and north-south cycle lanes, along with enhanced crossing points for both pedestrians and cyclists. These improvements will enhance connectivity between cultural landmarks, including Tate Modern and the future London Museum.
The transformation is being implemented in two phases. Phase 1 focuses on street improvements south of the former Museum of London rotunda roundabout, while Phase 2 will be coordinated alongside the redevelopment of the Museum of London/Bastion House area. Planning permission for the second phase was granted in April 2024. The entire project represents a £19 million investment in revitalizing this historic area of London.
This project continues previous enhancements to St Paul’s approach, including the Churchyard green space near Millennium Bridge that was completed in 2011. The new design affirms the cathedral area as a key destination in London’s urban fabric, supporting the City of London Corporation’s vision for improved streetscapes and inclusive public spaces.
