Glencar has been appointed as the main contractor to deliver Trehus, a landmark 79,200 sq ft mass timber-framed office building in Maidenhead that is set to redefine sustainable commercial development in Thames Valley.
As Phase 2 of the wider One Maidenhead masterplan, Trehus will be a sustainability-focussed office building, targeting net zero carbon emissions and achieving both BREEAM Outstanding and WELL Platinum certifications. Developed by HUB and its investor partner Smedvig, the project was unanimously approved by the Royal Borough of Windsor and Maidenhead, commended for its “excellent standard of design” and recognised as an “exemplar future-proofed office building.”
Glencar will deliver the full construction and fit-out of Trehus, a sustainable timber-framed office building, at the One Maidenhead development in Maidenhead town centre, opposite the train station. The scope includes:
- Specialist Structural Delivery – Construction of a precision-engineered mass timber superstructure, featuring Baubuche LVL timber frame and CLT floor decks, requiring specialist sequencing and logistics.
- High-Performance Façade Construction – Installation of a real solid stone façade on an SFS backing frame, complemented by large timber/aluminium composite windows to achieve a thermally efficient building envelope.
- Mixed-Use Integration – Delivery of 6,700 sqm of commercial office space, incorporating ground-floor retail units, a fifth-floor external terrace, and a premium Cat A office fit-out.
- Complex Foundation & Core Works – Construction of a reinforced concrete raft ground slab, alongside reinforced concrete lift and toilet cores for structural stability.
- Full MEP Package – Installation of HVAC systems, sprinkler installations, intelligent lighting solutions, and a new sub-station to provide a fully integrated and energy-efficient building system.
- Public Realm Enhancements – Development of a high-quality, landscaped plaza, designed to enhance the surrounding urban environment.
- Premium Cat A Fit-Out – Delivery of a high-spec reception, raised access flooring, and fully integrated mechanical and electrical building systems.
Ben Fletcher, Operations Director at Glencar, commented:
“We are delighted to be appointed as the main contractor for this landmark project at One Maidenhead. This appointment reinforces Glencar’s growing presence in the commercial sector, demonstrating our ability to deliver complex, high-quality and high-performance office developments with sustainability at their core.
Trehus is a truly forward-thinking scheme that will set a new benchmark for environmentally responsible office space in the Thames Valley. With its advanced timber construction and ambitious net zero carbon targets, it aligns perfectly with our commitment to sustainable building practices and technical excellence. We are proud to be working alongside HUB and Smedvig to bring this vision to life.
Beyond delivering a world-class building, this project will also generate economic benefits for the local area, supporting jobs and the wider supply chain. We look forward to breaking ground and delivering an outstanding scheme that will leave a lasting positive impact on Maidenhead’s town centre.”
Victoria Manston, Head of Development at HUB, said:
“We are excited to work with Glencar to make our vision for Trehus a reality. We’ve seen the success of One Maidenhead Phase 1, which delivered over 400 new homes, six commercial units and new public realm, and look forward to bringing forward this unique, landmark office building to complete the masterplan and further support the local economy.”
The project team are due to start on site in April with completion expected in Autumn 2026.
