A new industrial park, new halls
The municipal industrial park was built on the site of the old fairground, on roughly 10 hectares, with plots aimed mainly at small and medium-sized businesses (handed over around 2022). In new halls the typical problem is not poor insulation but workmanship: gaps at panel joints, incomplete door seals, the junction of sandwich panel and base wall.
A survey after the first heating season shows these in time and gives a photo-paired record of what to fix, which you can use as a basis for talking to the contractor (it is not an official or binding document).