Five City of London buildings make one Aparthotel

A new aparthotel has opened in the City of London following extensive works to create a single establishment from five very different buildings.

The development on Cannon Street, opposite the Mansion House underground station, overlooked by St Paul’s Cathedral and located in a Conservation Area, presented significant engineering challenges for the Clarkebond team appointed to carry out the structural design. 

The five former office buildings were a combination of early Victorian and modern construction with differing construction styles, materials and roof lines.  An added complexity was that a public house situated between two of the buildings and the ground floors across two of the buildings were in separate ownership and had to be worked around.  There was no room for a tower crane, so everything had to be designed to be lifted in small sections.  The location also presented challenges for deliveries to site and pumping concrete.

The scheme, comprising 77 studios and one bedroom serviced apartment suites arranged over six storeys, was primarily a refurbishment project although some new build elements were incorporated. These included the construction of a five storey link building and adding an additional storey on two of the Victorian buildings. The old roofs were removed and replaced with a linked mansard roof design.

In addition to the extensive reconfiguring of internal walls and floor plates and retrofitting lift shafts, there were two other significant structural aspects to be managed.  Firstly, the back of the one of the buildings had had to be removed in order to allow the required reconfiguration.  This required major temporary/permanent works and had to be carefully sequenced to maintain the integrity of the building.  The second was the need to retrofit structural members to the historic buildings to comply with modern disproportionate collapse requirements.

SACO The Serviced Apartment Company is delighted with the end product and was delighted to open the door to their first guests back in early spring.  The Cannon is now their flagship Aparthotel in London and is achieving exceptional results and guest reviews - 96% of guests are rating their stay as good or excellent.  Guests love the location, the design and the overall quality of the product.

‘This was a highly complex engineering job’, commented Martin Hathaway, Director, Clarkebond, ‘and it’s a credit to the skill, expertise and diligence of our structural engineers that all the project’s design aspirations were achieved.’ 

Architect: AWW
Engineers: Clarkebond