20 Fenchurch Street

20 Fenchurch Street
Name	20 Fenchurch Street
Location	City of London, London, England
Status	Completed
Building type	Office, retail, observation
Architect	Rafael Viñoly
Structural engineer	WSP Global
Main contractor	Canary Wharf Contractors
Start date	2011
Completion date	2014
Height	160 m
Floor count	34
Floor area	50,107 m²

20 Fenchurch Street

20 Fenchurch Street is a commercial skyscraper in the City of London financial district, noted for its distinctive top-heavy profile and rooftop public garden. Designed by Rafael Viñoly and developed by Land Securities and UOL Group, the tower occupies a prominent site near Fenchurch Street railway station, Leadenhall Market, and the Tower of London. The building's mixed-use program includes office floors, retail units, and a publicly accessible viewing terrace, which has drawn attention from Mayor of London administrations, local planning authorities and heritage bodies.

Design and architecture

Viñoly's design produced an inverted-concave profile that tapers at street level and flares at the upper stories, eliciting comparisons with works by Norman Foster, Richard Rogers, and Gensler-designed towers. The façade combines a glazed curtain wall with stainless steel brise-soleil inspired by precedents from Lloyd's building and 30 St Mary Axe, while the structural system uses outrigger trusses and a central reinforced concrete core similar to solutions employed on The Shard and HSBC Tower, Hong Kong. The Sky Garden, a triple-height glazed atrium at the crown, incorporates planting schemes referencing Kew Gardens, Chelsea Physic Garden and designs by Gilles Clement, and provides panoramic views toward St Paul's Cathedral, Tower Bridge, and The Gherkin. Interior fit-outs for major tenants referenced workplace models promoted by WeWork, JPMorgan Chase and Barclays in their London offices, and incorporated services influenced by standards from British Council for Offices and BREEAM guidance.

Construction and development

The project followed post-2007 redevelopment debates involving the previous low-rise buildings and proposals by developers including AEG, Citigroup, and UBS. Planning approval was granted by the City of London Corporation after consultations with English Heritage, Historic Royal Palaces and the London Borough of Tower Hamlets. Main contractor procurement involved Canary Wharf Contractors with structural engineering by WSP Global and services engineering by Arup, using tower crane logistics similar to those deployed on Heron Tower and One Canada Square. Construction commenced in 2011 and progressed through a reinforced concrete core, steel floor plates and façade installation, with topping out in 2014 and practical completion later that year. The development was financed through equity from Land Securities and debt facilities arranged with institutions such as HSBC Holdings, Barclays, and international investors including China Investment Corporation-linked funds.

Reception and criticism

Critical reception has been polarized, with praise from some commentators at Dezeen, Architectural Review and RIBA Journal for the Sky Garden and urban activation, while heritage organisations including English Heritage and critics aligned with The Victorian Society and Save Britain's Heritage expressed concerns about impact on views of St Paul's Cathedral and the Tower of London World Heritage Site. Political figures such as successive Mayor of Londons and members of the House of Commons debated the planning concessions and access arrangements, and press outlets like The Guardian, The Telegraph, The Times and Financial Times ran editorials critical of the building's silhouette and public access promises. Architectural historians have compared Viñoly's massing to precedents by Le Corbusier and Mies van der Rohe, while urbanists cited case studies from Canary Wharf and Docklands regeneration.

Environmental performance and sustainability

The building sought a BREEAM rating and incorporated energy-efficiency measures influenced by standards from CIBSE and the UK Green Building Council. Mechanical ventilation with heat recovery, low-energy LED lighting and high-performance glazing were specified, alongside rainwater harvesting and biodiverse planting on the Sky Garden drawing on guidance from London Wildlife Trust and Natural England. Post-occupancy assessments referenced by consultants from Arup and WSP Global evaluated thermal comfort against criteria in BS EN ISO 7730 and operational energy use relative to benchmarks published by the Department for Business, Energy and Industrial Strategy. Critics noted high operational energy for large glazed atria in analyses similar to those applied to 30 St Mary Axe and The Shard, while retrofit proposals for improved façades and shading were discussed with firms like Siemens and Schneider Electric.

Ownership, tenancy and usage

The freehold and leasehold interests have been held by Land Securities and UOL Group at different stages, with investment and asset management by institutional investors including Aviva Investors, BlackRock, and sovereign funds such as GIC and Qatar Investment Authority in various transactions. Major tenants have included RBS Group subsidiaries, Hiscox, and retail operators comparable to Fortnum & Mason-type concessions; tenants negotiated leases under frameworks influenced by IPD performance metrics and RICS valuation guidance. The Sky Garden functions as a publicly accessible space subject to booking systems similar to those used by The View from The Shard and managed in partnership with hospitality operators akin to Searcys.

Incidents and controversies

The building has been the focus of controversies over public access, with disputes involving the City of London Corporation, hospitality partners and civil society groups such as Open Spaces Society and Better Streets about reservation policies and commercialisation of public space. Structural and acoustic complaints were raised by tenants and addressed by remedial works carried out by contractors and consultants including WSP Global and Arup. Media coverage by BBC News, Sky News, ITV News and tabloid outlets highlighted security incidents and protests outside the site related to wider campaigns targeting financial institutions like HSBC and Barclays, and occasional roof-level maintenance closures prompted scrutiny from regulatory bodies including Health and Safety Executive.

Category:Skyscrapers in the City of London Category:Buildings and structures completed in 2014