Gensler
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Overview

Gensler is transforming London’s former City Hall into an open, low-carbon destination that reconnects workplaces, public life, landscape, and the River Thames.

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Opportunity

Vacant since the GLA’s departure, London’s former City Hall needed relevance and a viable new purpose that could preserve its iconic identity while overcoming its limitations.

Designed as a highly specific civic headquarters, the building struggled to support a broader future. Its sloping façade and inclined columns created inefficient floorplates that were difficult to use. The complex façade system was hard to clean and maintain, and offered limited adaptability overall. At ground level, a defensive edge expressed as a ramp along the façade restricted its relationship with the surrounding public realm. This presented an opportunity to adjust the landmark's recognizable silhouette while retaining its substantial existing structure — creating flexible workplaces, public-facing uses, improved environmental performance, and a more welcoming destination for Londoners and visitors.

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Why This Matters

  1. 01

    Preserving a London Landmark

    The building’s unmistakable silhouette forms part of London’s riverside identity. Any transformation had to retain that recognition while giving the structure a credible long-term future.

  2. 02

    Reconnecting to the River

    Despite its prominent setting, the former civic headquarters was inward-looking and difficult to access. Its next life needed to engage more openly with the Thames and public realm.

  3. 03

    Avoiding Unnecessary Replacement

    The existing structure represents substantial embodied carbon and material value. Demolition would erase that investment rather than test how a complex landmark could be adapted.

Client does not want to be featured

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Solution

The design retains the building’s defining form while straightening its edges, opening its ground floor, and wrapping every level with landscape and fresh air.

Gensler retains the existing core and much of the superstructure while replacing the complex double-skin façade with a simpler, higher-performing envelope. Straightened façades and columns create efficient, adaptable floorplates, while terraces provide outdoor space, biodiversity, shading, and panoramic views. At ground level, retail, dining, cultural uses, and an improved Scoop amphitheater activate the riverside setting. A triple-height reception draws its material language from the Thames, connecting the building’s new workplace identity with the history and character of Potters Fields Park.

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Related Content

90 kWh/m²/year GIA

Target operational energy use

75%

Of the Scoop and building frontage is intended for public use

600 kgCO₂/m² GIA

Target construction carbon footprint

From brief to build: how an expired, sealed landmark was opened and reworked into a more accessible, integrated part of the London South Bank.

The transformation focused on changing how the building meets the city. The existing sealed glass envelope is replaced with a more open, responsive façade that improves usable space, access, maintenance, and environmental performance. At ground level, the building is reshaped to create new entrances, visual connections, active frontages, and a stronger relationship with ‘The Scoop’ and surrounding public realm. Above, terraces, planting, and operable elements bring people closer to fresh air, landscape, and views, turning an inward-looking landmark into a more connected and welcoming destination.

Impact

The transformation is designed to return a vacant civic landmark to London as an active workplace, public destination, and more resilient riverside neighbor.

Retained structure, flexible offices, planted terraces, and public-facing uses are expected to create long-term environmental, commercial, and civic value from one intervention.

What Changed Because of This

  1. 01

    Public Destination

    New entrances, active frontages, improved routes, and a reworked Scoop turn the building’s edge into a more open and accessible riverside destination.

  2. 02

    Flexible Workplace

    Rationalized floorplates, terraces, natural ventilation, and integrated amenities create a workplace that can support different occupiers and adapt over time.

  3. 03

    Lower-Carbon Future

    Retained structure, material reuse, passive design, and all-electric systems reduce reliance on new construction while improving the building’s long-term environmental performance.

Valeria Segovia

110 The Queen’s Walk reimagines a London landmark for the future, combining adaptive reuse, sustainability and inclusive design to create a vibrant destination for all.

Valeria SegoviaPrincipal and Design Director

Recognition

01

Dezeen

Gensler’s design vision for the iconic City Hall in London has been unveiled.

02

The London Standard

A new chapter for a London landmark, with Gensler’s plans to create a sustainable destination on the South Bank.

03

Architects’ Journal

Gensler’s design approach to bring new life to a former City Hall building.

FAQ

01

What was 110 The Queen’s Walk originally designed for?

The building opened in 2002 as City Hall, the headquarters of the Greater London Authority. It became vacant after the GLA relocated in 2021.

02

How much of the original building is being retained?

The design retains the existing core, basements, superstructure, and part of the floor slabs.

03

How will the building be used after the transformation?

The proposals combine workplace with public-facing retail, dining, cultural, and event uses, including four commercial units and a new food hall.

04

How is the project improving public access?

New routes, external lifts, seating, planting, and active ground-floor uses make the building and The Scoop easier to access and navigate.

05

What sustainability standards is the project targeting?

The project is targeting EPC A, NABERS 5 stars, BREEAM Outstanding, and WELL Platinum.

06

How is the project reducing embodied carbon?

The design retains major structural elements, reuses existing materials, specifies recycled and locally sourced products, and avoids unnecessary demolition and replacement.