Tonkin Liu Unveils Timber Structures for York Minster Restoration

London architectural practice Tonkin Liu has recently completed a pair of timber structures positioned on either side of York Minster. These new facilities, collectively known as The Centre of Excellence for Heritage Craft Skills, provide essential amenities for artisans dedicated to the restoration of the ancient Gothic cathedral. Comprising the rectangular Heritage Quad and the triangular Technology Hub, both buildings are strategically designed to offer working stonemasons inspiring views of the Grade I-listed York Minster, fostering a deep connection between the craft and its historical context.

Mike Tonkin, co-founder of Tonkin Liu, highlighted the significance of these buildings as the first new structures with historical precedent in a century, emphasizing their role in responding to the setting and inaugurating a new chapter for heritage craftsmanship. The urgency for these developments stems from the accelerating degradation of York Minster due to climate change. Tonkin noted that these two new facilities are projected to expedite the cathedral's conservation by four decades over the next century, marking a critical advancement in safeguarding this invaluable heritage site.

In collaboration with Historic England and local planning authorities, Tonkin Liu meticulously transformed and expanded existing structures near York's medieval city walls to create the Heritage Quad. This facility incorporates workshops, educational spaces for stonemasons, and apprentice accommodation, all unified by a glued-laminated timber (glulam) framework and a distinctive plywood roof. This roof not only directs rainwater into collection tanks but also curves over a central courtyard, offering a framed view of York Minster to the working artisans. Additionally, the roof's northern elevation is designed to incline upwards, allowing passersby glimpses into the ongoing workshop activities. On the opposite side of the cathedral, the Technology Hub, constructed with steel and glulam, houses advanced digital tools for stone cutting. Its triangular footprint is adorned with ascending rows of arched windows, which pierce its photovoltaic-covered roof. Tonkin explained that planning constraints dictated the upper height of the hub to align with surrounding buildings, while the lower structural height was determined by the cutting equipment and gantry cranes it houses. The design cleverly incorporates parabolic fan vaults, filling the workshop with natural light and preserving views of the Minster from adjacent areas.

Both the Heritage Quad and the Technology Hub are constructed primarily from glulam, deliberately distinguishing them from their stone-built historic neighbor. This material choice respects the cathedral's unique stone identity, reserving stone for the Minster itself. Despite the material difference, Tonkin Liu's design draws heavily on the cathedral's profound use of light and geometric principles, establishing a physical and symbolic dialogue with the Minster. The Heritage Quad's roof, for instance, ascends between its square and circular elements, forming an arch that frames views of the Minster, with its expressed vertical structure echoing the cathedral's perpendicular Gothic style. Similarly, the Technology Hub's triangular plan is strategically set back from the boundary wall to maintain crucial sightlines of the Minster from nearby residences. Its wooden vaults derive structural integrity from their form, mirroring the Minster's architectural strength, while the trusses align with existing walls, radiating towards the cathedral's transept. These thoughtful design choices underscore a commitment to both modern functionality and deep historical reverence, ensuring that the new buildings not only serve a practical purpose but also enrich the architectural dialogue within this historic precinct. This project, The Centre of Excellence for Heritage Craft Skills, has been recognized for its innovative approach, earning a shortlist nomination in the mixed-use category of this year's Dezeen Awards, highlighting its significant contribution to architectural innovation and heritage preservation.