Shell Mex House: A Riverside Icon Reborn
Few buildings on the Thames carry the presence - or the pedigree - of Shell Mex House. Completed in the 1930s as the joint headquarters for BP and Shell, it was conceived as a new fangled commercial powerhouse: vast in scale, structurally advanced and designed for flexibility long before it became a market expectation. Its steel frame, open spans and generous lightwells delivered highly adaptable, light-filled floorplates, while its monumental riverside façade, anchored by one of London’s largest clock faces, earned it the nickname ‘Big Benzine’. During the Second World War, its strategic importance saw it repurposed as an RAF headquarters, embedding resilience into its already formidable identity.
But heritage alone no longer guarantees performance. Like many legacy office assets, Shell Mex House faced a fundamental challenge - how to translate historic gravitas into contemporary commercial value.
Architect Studio PDP’s completed transformation at 80 Strand answers that question with precision. Rather than impose change, the design unlocks what was already there, repositioning the building to align with modern occupier expectations - all while amplifying its inherent strengths.
A critical move was the reorientation of the building’s entrance. Historically accessed from the Embankment, with the Strand elevation relegated to servicing, the building turned its back on one of London’s most active frontages. By establishing a new primary arrival on the Strand, Studio PDP reconnects the asset to the energy of Covent Garden, immediately enhancing visibility, footfall and leasing appeal.
Inside, the intervention introduces a hospitality-led experience that reframes the workplace offer. Drawing on the building’s Art Deco grandeur, a new reception space flows into shared tenant amenities including lounges, meeting suites and café spaces. As one member of the front-of-house team observed,
“People who work here say it’s like walking into a grand hotel every day…”
- a shift that speaks directly to occupier expectations in a post-pandemic market.
Underutilised spaces have been recast as value-generating assets. A central courtyard is transformed into a landscaped environment for informal working and events, while existing lightwells are activated with pavilion structures that support tenant use and programming. At basement level, high-quality, hotel-style active travel facilities further strengthen the building’s competitive positioning.
Performance has been addressed alongside experience. Studio PDP’s CAT-A refurbishment across four floors delivers an EPC B rating, while modular lighting and MEP systems allow for flexible subdivision - reducing future fit-out costs, minimising waste and protecting long-term asset value.
The result is a building that no longer relies on its history but capitalises on it. Shell Mex House is a clear demonstration of how intelligent repositioning can unlock latent value in heritage stock - leveraging scale, identity and location to deliver a commercially competitive, future-ready workplace.
At 80 Strand, one of London’s most iconic buildings hasn’t just been restored, it’s been reset for performance.
Join Studio PDP for an exclusive guided tour of this iconic building. Discover its transformation, design, and heritage on Thursday 14th and 28th May 2026.