In addition to the main study, the international office landscape is also analysed on the basis of individual market sectors. In the "Heritage" sector, HPP even ranks 6th worldwide! The refurbishment, revitalisation and conversion of buildings and ensembles, with or without heritage protection, has been a key service area of our office for decades. Many ongoing projects in existing buildings, such as the refurbishment of the Marl Town Hall, the refurbishment of the “Bühnen Köln” or the recently completed revitalisation and redesign of the Xujiahui Sports Park in Shanghai, contribute to this.