For only the fourth time in its 300-year history, Grosvenor Square is being redesigned.

This Grosvenor-led multi-million-pound transformation, the most significant private investment in public green space in a generation, will demonstrate how green spaces in cities can work harder for nature, and the wellbeing of those who rely on them.  

Designs for the fourth redesign of the square in its 300-year history, originated by leading London architecture practice Tonkin Liu and delivered by BDP, pay homage to the original 1720s design, reinstating an oval shaped lawn, framed by a new footpath and a surrounding woodland garden.

Featuring c.70,000 new plants, 44 new trees, new wetlands and c. 80,000 new bulbs, the square will be a natural haven for wildlife and habitats, blending beauty and biodiversity to create a place for visitors and residents to reconnect with nature.

Driven by a belief that better engagement makes better places, plans for Grosvenor Square have been developed alongside the community since 2017. Over 7,000 people have fed into the designs, with a particular focus made to encourage young people to share their views, ensuring the proposals reflect the needs, aspirations and values of local residents, businesses and visitors. 

Significantly contributing to our commitment to increase the biodiversity of its green spaces across London, the project will contribute to urban climate resilience, helping to regulate urban heat island effects and mitigate flood risk. 

The redevelopment includes a new education building, where programmes funded by The Westminster Foundation will offer opportunities for children and adults to learn about biodiversity, the environment, climate change and the square’s rich history. Providing further community benefits, a new kiosk serving refreshments, public toilets and 300 additional places to sit and relax will be provided.

This project is part of a multi-year strategic investment wider strategic investment to ensure Mayfair remains a pre-eminent location to work, shop, and live, Grosvenor Square will complement our nearby South Molton project, the West End’s largest mixed-use scheme, set to create a vibrant mix of new offices, retail, cafes restaurants and homes. 

Works on Grosvenor Square are expected to be finished by summer 2026.