45212321 - Auditorium construction work

CPV code 45212321 in the EU Common Procurement Vocabulary refers to Auditorium construction work. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45212300, narrowing the broader category into the specific area of auditorium construction work. As a leaf code, 45212321 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns auditorium construction work. Contracting authorities across the EU use 45212321 in TED notices and national procurement portals to signal that a tender relates to auditorium construction work.