Wiltz, Luxembourg
The City of Wiltz counts approximately 8200 inhabitants and is located in the green heart of the Ardennes Region, which lies in the North of the Grand Duchy of Luxembourg. Recognized as the National Hotspot for Circular Economy by the Ministry of Economy in 2015, Wiltz has since initiated multiple pilot projects and reinforced its commitment by signing a political charter in 2018, which has been renewed in 2022. This continuous engagement highlights the city’s ambition to lead both local and national transitions towards a circular economy. As part of Luxembourg’s national Climate Pact, Wiltz has set ambitious goals, including a reduction of greenhouse gas emissions by at least 55%, the achievement of climate neutrality by 2050, and a systematic decrease in resource consumption through circular and sustainable solutions. These targets are integrated into everyday practices, promoting the use of cradle-to-cradle or other certified products. In 2025, Wiltz will celebrate a decade as a Circular Economy Hotspot, hosting a professional event and a family friendly event including workshops, guided tours, games and other activities.
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Circular Construction
At the heart of Wiltz’s urban transformation is the project "Wunne mat der Wooltz", led by the Fonds du Logement. This flagship initiative is revitalizing a 32-hectare former industrial site into a lively, compact, and eco-friendly urban district. Focused on renewable energy, social value creation, and efficient resource management, the development is set to welcome more than 2000 new residents over the coming years, setting a new benchmark for smart spatial planning in Luxembourg.
Wiltz is also a key partner in the international PREUSE project, part of the Interreg North-West Europe program, running from 2024 to 2027. This research initiative seeks to support local and regional authorities in reclaiming and reusing building materials. Through PREUSE, Wiltz is developing a comprehensive strategy to promote material reuse, establishing infrastructure such as a reuse centre, demonstrating the feasibility of reuse in construction, and co-creating specialized training programs to equip professionals with essential deconstruction and reuse skills. Building on its own experience with pilot projects, Wiltz has also contributed significantly to shaping national standards for circular construction. The city’s internal tool, developed from lessons learned in sustainable building, served as the basis for national workshops – under the guidance of Klima- Agence – and has evolved into the BauCheck. Launched in April 2024, the BauCheck now provides municipalities and developers across Luxembourg with a shared framework to integrate circular economy principles into construction practices.
Community engagement and Innovation
Beyond urban redevelopment, Wiltz places strong emphasis on fostering community engagement and supporting local initiatives that embody circular economy values. Through the promotion of social participation, sharing economy models, local resource loops, and the refurbishment and remanufacturing of second-life products, the city encourages sustainable practices that also drive social integration.
Since 2019, these circular principles have been formally embedded in Wiltz’s building regulations, guiding the city's development towards a healthier and more sustainable living environment.
As a further step in its leadership role, Wiltz has established the Circular Innovation HUB, a national platform dedicated to education, information and training in the field of circular economy. Working closely with other national training institutes, the HUB offers a variety of programs designed for professionals, with a particular focus on the construction and artisanal sectors, helping to cultivate a new generation of circular economy experts.