Summary
| Property Type | Office |
| Tenure | To Let |
| Size | 45,000 to 139,048 sq ft |
| Rates Payable | Upon Enquiry |
| Service Charge | n/a |
- Unrivalled connectivity - Direct access to Bank Station (5 tube lines + DLR) with Cannon Street mainline opposite
- Market-leading sustainability - Targeting BREEAM Outstanding, WELL Platinum, NABERS 5* and EPC A
- Premium amenities - 7,200 sq ft terraces, wellness suite, 298 cycle spaces, 30 showers and changing facilities
- Flexible floorplates - 11,657 to 22,424 sq ft virtually column-free spaces with efficient central core
- Smart building technology - Cutting-edge systems with building app for occupier control and personalisation
- All-electric building - Zero gas with 25% biodiversity net gain and minimal carbon emissions
- Spectacular views - 7th floor terrace with stunning vistas towards St Paul's Cathedral
- Prestigious location - Adjacent to characterful Abchurch Yard in the heart of the City's cultural renaissance
About
10 King William Street is a premium 140,000 sq ft office development located directly above Bank Underground Station in the heart of the City of London. This joint venture between Helical plc and Places for London delivers an exceptional workspace across ground, mezzanine and seven upper floors, available Q4 2026. The Fletcher Priest designed building will deliver truly best in class space whilst targeting market-leading sustainability credentials including BREEAM Outstanding, WELL Platinum, NABERS 5* and EPC A ratings.
Accommodation
| Name | sq ft | sq m | Availability |
| 7th - Terrace - 3,115 sq ft | 10,991 | 1,021.10 | Coming Soon |
| 6th - Terrace - 2,994 sq ft | 16,297 | 1,514.04 | Coming Soon |
| 5th - Terrace - 398 sq ft | 22,017 | 2,045.45 | Coming Soon |
| 4th | 22,430 | 2,083.82 | Coming Soon |
| 3rd | 22,428 | 2,083.63 | Coming Soon |
| 2nd | 22,428 | 2,083.63 | Coming Soon |
| 1st | 22,457 | 2,086.32 | Coming Soon |
| Total | 139,048 | 12,917.99 |
Location
10 King William Street occupies a truly exceptional position in the heart of the City of London, directly above Bank Underground Station with instant access to five tube lines (Central, Northern, Waterloo & City, DLR and others) and virtually opposite Cannon Street mainline station, providing unparalleled connectivity across London and beyond.
The building sits at the epicentre of the City's transport network, with major stations including London Bridge (5 minutes), Liverpool Street (5 minutes), Moorgate (2 minutes), and King's Cross (11 minutes) all within easy reach. This connectivity extends to international travel with direct rail links to Gatwick Airport and European destinations via nearby stations.
The location benefits from the City's cultural renaissance, surrounded by an exceptional array of dining, retail and entertainment options. Notable establishments within walking distance include The Ned (5 minutes), The Wolseley (2 minutes), Borough Market (10 minutes), and The Royal Exchange (4 minutes). St Paul's Cathedral is just 12 minutes away.
The immediate vicinity houses numerous prestigious international occupiers including Bloomberg, Apple, Lloyd's of London, Bank of England, Nomura Asset Management, and leading law firms such as Latham & Watkins and Skadden, demonstrating the area's continued appeal to world-class organisations.
The building uniquely benefits from its position adjacent to the secluded Abchurch Yard, providing a rare characterful enclave that acts as the perfect counterpoint to this dynamic financial district location.
Mainline Stations
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Cannon Street7 mins
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Fenchurch Street10 mins
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Liverpool Street11 mins
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Moorgate13 mins
Underground Station
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Monument5 mins
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Bank Station4 mins
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Cannon Street8 mins
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Mansion House9 mins
Downloads
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Further Information
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Sustainability
10 King William Street sets a new benchmark for sustainable office development in the City of London, with market-leading environmental credentials designed to minimise carbon emissions whilst maximising occupier wellbeing and comfort.
TARGET ACCREDITATIONS
BREEAM Outstanding - Achieving the highest standard for sustainable building design and construction
WELL Platinum - Prioritising occupier health and wellbeing through evidence-based design
NABERS 5* - Demonstrating exceptional operational energy performance
EPC A Rating - Delivering outstanding energy efficiency in operation
ENVIRONMENTAL PERFORMANCE
The building adopts an all-electric approach, eliminating gas consumption entirely and minimising operational carbon emissions. Smart building technology seamlessly integrates with intelligent design to optimise energy performance, whilst extensive sensor networks monitor real-time building conditions to enable truly sustainable occupation.
BIODIVERSITY & COMMUNITY IMPACT
In line with Places For London's Sustainable Development Framework, 10 King William Street delivers a 25% biodiversity net gain, contributing positively to local ecology through thoughtful landscaping and green infrastructure. The development prioritises inclusive design and community engagement, enhancing the surrounding environment whilst supporting local biodiversity.
CONSTRUCTION STANDARDS
Working to stringent sustainability targets, the development minimises embodied carbon and construction waste through the use of recycled and sustainably sourced materials wherever possible. The building combines cutting-edge environmental systems with a 60-year façade design life, ensuring long-term performance and reduced lifecycle impacts.
SMART TECHNOLOGY INTEGRATION
Advanced building management systems provide granular control over heating, cooling, lighting and ventilation, enabling personalised comfort settings whilst optimising energy consumption. The bespoke building app puts system control directly in occupiers' hands, supporting both sustainability goals and user experience.
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