Matamata Public Relations Association Manager, Sue Whiting says the community response to the project has been fantastic.
"The Matamata community is excited about the launch of The Hobbit and the redevelopment of the Hobbiton Movie Set," she said.
"The Matamata i-SITE Gatehouse can be the beginning of the journey for our visitors - it will spark the magic."
The town's businesses have also got into the spirit creating their own slice of The Shire outside their premises with Hobbiton-style gardens and painted windows.
The entire community will share in the Gatehouse opening with celebrations, entertainment and activities to suit all ages planned on the 'Party Field' created close to the building.
Festivities begin around 3pm and will end late in the evening, the official opening will take place from 5pm onwards.