The building, which is due to open in September 2006, will replace its 25-year-old Victoria Street site in Southwold and will be located in the East Anglian countryside.
The centre is designed to meet Building Research Establishment Environmental Assessment Method (BREEAM) Excellence standards, through features such as rooftop solar panels.
The roof will also be covered with a living carpet of thick fleshy plants, through which rainwater will be stored and reclaimed.
Waste water will pass through a septic tank and reed beds before it returns to nearby ponds, while lime, hemp and chalk blocks will be used for construction. Sustainable glulam (glued and laminated) wood will also be used.
Andy Wood, Adnam’s commercial director, said: “Adnams is prepared to put its values into practice, but in times of ever-increasing energy costs, this makes good business sense, too.”