The City Architecture Forum is a membership group for anyone interested in the architecture, urban design, public realm and planning of the City of London.

Next Event

Tour: 100 New Bridge Street

Thursday, 22 January 2026, 2:00 pm - 4:00 pm
100 New Bridge St , 100 New Bridge Street, London, EC4V 6JJ

Developed jointly by Helical and Orion Capital Partners, designed by Gensler and built by Mace this sustainable repositioning and extension project will be the new home of State Street Bank when they move back to the City of London from Canary Wharf.

Through early engagement, Mace worked closely with the design team to test, quantify, and refine reuse strategies, ensuring the most effective and deliverable circular outcomes were embedded into the scheme.

As part of this approach, the project retains over 85% of the existing structure and incorporates façade reuse, charitable redistribution, manufacturer refurbishment, and closed-loop steel exchange. With an embodied-carbon ambition pushing toward 350 kgCO₂e/m², the scheme sits far below the ~800–1,000 kgCO₂e/m² typically associated with an equivalent new-build…

Insights

‘CAF 2.0’ forges ahead

By Andrew Reynolds

2025 was the first year of ‘CAF 2.0’ – an evolution of the Forum responding to the new era opening up in the City of London, and to look ahead to 2026, our 35th anniversary since we were founded in 1991. So, what has changed? Our new Operations Director Jenny...

New embodied-carbon contender for Farringdon

By Lee Mallett
The City may have a contender for best-in-class when it comes to the lowest levels of embodied carbon for a new building....

One Leadenhall Street Event Review

By Xavier Aguilo
Yesterday's journey through One Leadenhall Street was nothing short of architectural poetry in motion....

City Architecture Forum: Annual Dinner 5 November 2025

By Lee Mallett
Read the report on our Annual Dinner 2025 with guest speaker Tom Sleigh, Chair of the City’s Planning and Transportation Committee, and Robin Dobson, CEO of Platform4...

Reflections on the Talk: 85 Gracechurch Street

By Matthew Thomas
Architecture is at its most compelling when it not only responds to context but actively reshapes it, carrying the past into the present while opening doors to the future. Last Tuesday’s talk on 85 Gracechurch Street delivered on this, offering an inspiring glimpse into a landmark scheme that sits at...

TBC . London: going for green and social impact

By Lee Mallett

What is probably the best view of the City core’s cluster, CAF members agreed on their recent tour, is now available from the northern roof terrace of TBC.London – an environmentally and socially impactful remodelling of an unlovely 1980s building at 224-226 Tower Bridge Road, south-east of Tower Bridge that...

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There is no better place, if you want or need an introduction to the City’s built environment and to the ideas of those who shape it than the City Architecture Forum.