The ambitious project will transform the Grade II listed building into a luxury residential conversion, offering 170 apartments including rooftop penthouses overlooking the neighbouring racecourse.
The building, which is the birthplace of the Chocolate Orange and Terry’s Old Gold, opened in 1926 and at peak production employed 700 people.
PJ Livesey founder and managing director, Peter Livesey, said: “We have put our heart and soul into this building and believe our passion for what we do will shine through.
“Terry’s left a legacy for the town and we are re-defining that legacy.”
Sales are due to begin next month; just six months after construction work began on the project.
Peter added: “York is a confident and ambitious city and we believe the investment we are making in creating really high quality new homes will help underpin that growth.”