Leiden’s historic Meelpakhuis, once a silent warehouse for flour, has found a second life. Today, it’s a dynamic mix of apartments and offices, wrapped in 2,500 m² of AGC Stopray Ultraselect 70/33 triple glazing. The glass doesn’t just look sleek, it controls heat, floods interiors with light, and keeps residents comfortable year-round.

Stopray Ultraselect is more than a façade material. It’s a precision tool for architects and engineers. With 70% visible light and just 33% solar heat gain, the glass balances daylight and thermal control without altering the building’s historic look. Its low-reflective, neutral finish keeps the original character intact, while giving interiors a modern, airy feel.

For residents, the benefits are tangible: rooms stay cool in summer without heavy air-conditioning, yet retain warmth in winter. Natural light streams in, enhancing comfort and cutting electricity costs. The building is not only visually striking, it’s efficient and smart, proving that sustainability can coexist with style.

Sustainability is baked in. Stopray Ultraselect carries Cradle to Cradle Bronze certification, meaning its lifecycle, from production to installation, respects environmental principles. Less solar heat gain reduces energy demand, helping the building operate cleaner and leaner.

The transformation of the Meelpakhuis shows how high-performance glass can revive heritage spaces without overpowering them. This is a warehouse that works hard: it’s functional, energy-efficient, photogenic, and comfortable. AGC’s Stopray Ultraselect proves that glass isn’t just a material, it’s a tool for creating buildings that feel alive, not just preserved.

Leiden’s Meelpakhuis now stands as a benchmark for smart renovation, where history, design, and technology collide in the most elegant way possible.