UNESCO World Heritage Site

The other day, while listening to the radio, I came across news about lawyers contesting a development project within a UNESCO site. I missed the entire discussion, but remember that the area in question is recognised as a UNESCO World Heritage site. What are the legal implications of this? Could you please clarify?
NB, Manyara

A UNESCO World Heritage site is a place that the United Nations Educational, Scientific and Cultural Organisation (UNESCO) recognises for its cultural, historical, or scientific significance. These locations are considered to have outstanding universal value for humanity. They are protected by an international treaty known as the Convention Concerning the Protection of the World Cultural and Natural Heritage (1972), as well as the national laws of the countries in which they are located. Being designated as a UNESCO heritage site carries various legal implications. Primarily, it imposes a legal duty on the host nation to safeguard and uphold the site’s values, as specified in the Convention.

Tanzania is home to numerous UNESCO World Heritage sites that hold both natural and cultural significance. Notable sites include the Ngorongoro Conservation Area, a mixed heritage site featuring a volcanic caldera, grasslands, and the coexistence of wildlife and humans; the Ruins of Kilwa Kisiwani and the Ruins of Songo Mnara, which showcase the cultural heritage of the Swahili city-states with their rich architectural history; and Serengeti National Park, recognised for its incredible wildlife and the famous great migration, an annual wildlife event occurring between Tanzania and Kenya. We appreciate your interest in staying informed about the latest news. For further information on these sites and their legal protections in Tanzania, consult a lawyer specialising in this area.