Benchmark Scaffolding was selected by Mace Interiors to support the refurbishment of 38 St Mary’s Axe, a Grade II listed building requiring a highly specialised approach to heritage preservation, safety, and engineering innovation. The project involved reconfiguring floor space, refurbishing the mansard roof, replacing windows, and restoring the stone façade. Given the listed status, intrusive scaffold ties were minimised through a strategic design developed in collaboration with Historic England and the local council. A progressive installation method allowed work to commence before final planning approvals, ensuring no delays to the schedule.

The project presented significant technical challenges across multiple elevations. On the north side, no ground-bearing footprint was available due to an adjacent property boundary, requiring a solution that utilised the roof parapet wall for support. The east elevation featured a narrow, high-traffic footpath, necessitating a cantilevered scaffold design while maintaining full pedestrian and vehicle access. The south elevation required a heavy-duty gantry and hoist run-off tower while mitigating wind loads from the adjacent 30 St Mary’s Ace (The Gherkin). Stability was achieved through precisely positioned mechanical ties, ensuring minimal impact on the historic façade.

Despite strict heritage constraints, the project remains on schedule for completion in May 2025. Benchmark Scaffolding’s expertise in engineering complex scaffolding solutions within conservation settings ensured structural integrity, cost efficiency, and seamless collaboration with stakeholders.