
Yarnwicke
A transformation creating premium workspace for Riverside Capital.
At Yarnwicke, we transformed Sherborne House into a contemporary six‑storey office building offering a blend of Cat A workspace, fully fitted plug‑and‑play floors and luxury amenities. Positioned overlooking Cannon Street and moments from the City tower cluster, the building has been comprehensively upgraded to deliver high‑quality, flexible accommodation tailored to modern occupier needs. New private terraces, refined interior architecture and exceptional design detailing elevate the user experience throughout, creating a distinctive workplace that combines premium finishes with strong commercial appeal in a highly connected City location.
- Client
- Riverside Capital
- Value
- £8.8m
- Duration
- 14 Months
- Manager
- Blackburn & Co.
- Architect
- Barr Gazetas
- QS
- Knight Frank
- Services
- MTT
- Structural
- Heyne Tillett Steel
- Person
-
Director Rob Carr
Sustainable extension, structural reconfiguration and premium workspace delivery.
The project comprised a full refurbishment and extension of 119–121 Cannon Street, creating larger, more open floorplates for modern occupiers. Major structural works removed the pitched roofs and upper floors, enabling a new two‑storey extension built using CLT timber, steel and reused materials, while the part‑listed façade was carefully restored. Internally, removing an 80‑metre hydraulic lift shaft required a redesigned demolition strategy and phased delivery. The top floors provide light‑filled Cat A space with new terraces, while levels two to four offer premium plug‑and‑play workspace with advanced technology, meeting rooms and fully fitted kitchens.

“Collins Construction has delivered a fantastic building on a difficult site, and in very challenging conditions. The day-to-day construction expertise provided by Collins alongside our excellent professional team has allowed us to successfully complete our finest development to date.”
Dominic Wright, CEO at Riverside Capital






