In an exclusive location, a residential quarter was created that meets all the requirements of a premium property. From its urban planning quality, to the high-quality fittings and furnishings, to the greatest possible privacy, the Palais du Rhin is a prestige property for the Cologne Rhine bank area. The challenge for the tiler trade was now to take these targeted plans into account in the implementation and choice of materials. Especially for the waterproofing work in the bathrooms, the details were crucial. In addition to products that ensure the waterproofing of the subfloors, the transitions from the connections were also to be made watertight in the long term for a sustainable result.