Architecture and buildings Zoological Society of London Zoological Society of London ZSL had an in-house architecture department for many years, which was responsible for building of many of the iconic buildings still extant onsite today. 1827-2007 549 items and 6 boxes https://zsl-archive.maxarchiveservices.co.uk/architecture-and-buildings ARC eng https://zsl-archive.maxarchiveservices.co.uk/zsl-archives Zoological Society of London ZSL Library & Archives does not hold the plans of existing buildings as they are still in active use