Sydney Zoo hosts ribbon cutting ceremony ahead of opening its doors to the public on Saturday

Numerous officials attended including NSW Premier Gladys Berejiklian who, along with the facility's Mini Zookeepers, cut the ribbon to declare the facility open.

"Sydney Zoo has a unique mix of precincts and curated offerings that are a first in the region. The Zoo is forecasted to generate an estimated $45 million per annum to the NSW economy and attract one million visitors each year," Ms Berejiklian said.

"For the first time in 100 years, Sydney has opened a major new Zoo and it is set to become one of Western Sydneys main attractions."

Sydney Zoo managing director Jake Burgess said: "Sydney Zoo embraces technology and innovation to improve animal welfare, visitor engagement and education for endangered animals. Over the past six years, our dedicated team have brought to life the visions of me and my father, John Burgess. The Zoo is home to all our favourite exotic and native animals, the countrys largest reptile and nocturnal house - and Sydneys only zoo and aquarium all in one."

"Sydney Zoo will also play a major role in inspiring action and educating visitors on how they can contribute to positive conservation and sustainability outcomes. We aim to continually improve our animal habitats while striving to enhance our visitors engagement and education. We invite everyone to join our celebration as we officially open our doors on December 7," Mr Burgess said.

The new Sydney Zoo is made up of four iconic precincts - Australia including an aquarium, Primates, South East Asia and Africa.

Visitors of all ages will be able to roam around the completely flat site with no hills or steps with 30 habitats, and more than 2000 animals, specially created to provide a sense of openness and space for the animals, improving their welfare and the guest's experience.

The zoo's first animals arrived in its Africa Precinct in September, including four lion brothers from Taronga Conservation Society, three orang-utans, two cheetahs, three zebras, 11 chimpanzees and 13 baboons.

The zoo also welcomed three hyenas from Singapore Zoo, with the pack becoming the only hyenas to call Sydney home.

The new Sydney Zoo is located at 700 Great Western Highway, Bungarribee, approximately half an hour's drive from South Windsor.

Go to sydneyzoo.com for more.