The first phase will cost £90 million ($120 million) and will construct the UK’s first domed ecosystem, called Heart of Africa, as well as a 90-bed hotel, a conservation college and a new main entrance that links to a marina development. The rest of the project is schedule to be completed by 2018.

“Chester Zoo already actively supports and runs conservation, science and veterinary projects in all corners of the globe but the increased visitor footfall from this new project will dramatically increase what we are able to do and fund out in the field,” said Gordon McGregor Reid, director general of the zoo.

Celebrating its 75th anniversary in May, the zoo receives 1.3 million visitors a year, which is more than any other zoo in the UK. It is expected that number will increase to 1.6 million on completion of the first phase and 2 million visitors per year on completion of the full project.

The zoo currently occupies 50 hectares of land but owns a further 200. The completed Natural Vision project will cover 80 hectares and include new access roads and parking.

The Heart of Africa bio-dome will be a rainforest-themed sanctuary for animals, birds, amphibians, fishes and invertebrates. It will also include a series of connected domes that can be explored through a jungle canopy. An interactive water ride will have views of the animal enclosures and themed retail and dining facilities will be incorporated.

“The Zoo has the potential to become a flagship visitor attraction for the Northwest, improving perceptions of the region and boosting inbound tourism. The NWDA [Northwest Regional Development Agency] is pleased to have been able to assist in the development of these plans, which provide a robust starting point for this exciting development,” said James Berresford, director of tourism at the NWDA.