According to the charity, its previous premises were unable to accommodate all of its staff, the number of which has quadrupled from just 10 a decade ago to almost 40.
The new office, which will accommodate staff who were previously split between two buildings, should provide better communications and work efficiency via new technological infrastructure.
In a statement sent to Plant Based News, George Gill, CEO at The Vegan Society, said: "When I joined the Society back in 2009, I was one of just 10 members of staff.
"We now have a 40-strong team of talented and hard-working vegans, and it feels like the time is right for us to move to accommodate the expansion of the charity.
"Once everyone is housed under the same roof, we will have space to pursue our plans for the growth of The Vegan Society and the vegan movement."