10 Fenchurch Avenue, London, EC3M

A high-performance programme at 10 Fenchurch Avenue, where advanced temporary works, retention of perimeter basement walls and extensive excavation underpinned the success of this landmark scheme.

Operating in the heart of the City of London, our team orchestrated demolition, ground engineering and structural support with assured safety, seamless continuity and absolute precision.

The project commenced with asbestos removal and a full soft strip of office areas before progressing to the controlled demolition of six buildings, one rising to 22 metres. Using a combination of floor-by-floor and long-reach techniques, we safely reduce all the structures to the underside of the basement slab.

To stabilise the footprint, we installed 300 tonnes of raking props and flying shores as part of an intricate temporary works strategy. This was designed to retain the existing perimeter basement walls throughout the demolition and excavation phases.

Excavation works included removing 45,000m³ of spoil to form a new basement ranging from 8–10 metres in depth, with sections extending to 16 metres.

Reverse blinding was completed ahead of installing and maintaining a split-level piling platform. This was reinforced by comprehensive pile probing to support the next stage of development.

Our team also delivered essential infrastructure protection by constructing five substantial concrete culverts to safeguard five live network substations.

A defining element of the project involved working in and around an operational NatWest bank positioned prominently on the site boundary. The building was carefully retained during surrounding demolition activities, requiring meticulously planned sequencing, specialist foundation separation and accelerated works to allow the construction of a replacement bank before the original structure was ultimately removed.

We also designed and installed an enormous external façade retention system along Brushfield Street.