Prof. Dr.-Ing. Harald Garrecht

How can we successfully develop a concrete vision for an endangered listed building within a very short space of time? At the 2026 Heritage Hackathon, experts from various disciplines will work alongside trade fair visitors on a real listed building: the Bad Waldsee Community Centre. Over the course of two days at the fair, different perspectives will be brought together and concrete approaches to its use, planning, funding and implementation will be developed. The hackathon is deliberately designed as an open workshop format: anyone interested can join in at any time, contribute their knowledge and ideas, and work on the project alongside the participating experts. On Saturday, the results will be presented and discussed together.

How can historic buildings and entire neighbourhoods be designed to be climate-neutral or even climate-positive? Using the example of the UNESCO World Heritage Site, Hamburg’s Speicherstadt, this talk presents a holistic approach to sustainable energy supply concepts for historic buildings. The focus is on the needs-based energy retrofitting of the building envelope, the use of locally available renewable energy sources, and the deployment of solar-hybrid roof systems, heat pumps and innovative heat storage solutions. Furthermore, the presentation will demonstrate how digital connectivity and the intelligent operational optimisation of technical components can contribute to a sustainable energy supply at neighbourhood level.

How can we successfully develop a concrete vision for an endangered listed building within a very short space of time? At the 2026 Heritage Hackathon, experts from various disciplines will work alongside trade fair visitors on a real listed building: the Bad Waldsee Community Centre. Over the course of two days at the fair, different perspectives will be brought together and concrete approaches to its use, planning, funding and implementation will be developed. The hackathon is deliberately designed as an open workshop format: anyone interested can join in at any time, contribute their knowledge and ideas, and work on the project alongside the participating experts. On Saturday, the results will be presented and discussed together.

How can we successfully develop a concrete vision for an endangered listed building within a very short space of time? At the 2026 Heritage Hackathon, experts from various disciplines will work alongside trade fair visitors on a real listed building: the Bad Waldsee Community Centre. Over the course of two days at the fair, different perspectives will be brought together and concrete approaches to its use, planning, funding and implementation will be developed. The hackathon is deliberately designed as an open workshop format: anyone interested can join in at any time, contribute their knowledge and ideas, and work on the project alongside the participating experts. On Saturday, the results will be presented and discussed together.