Located on the south bank of the Eerste River which cuts through the estate, the conference centre consists of five buildings of various sizes constructed predominantly from material found on site. Spier sustainability director Tanner Methvin said the buildings were designed with meetings, small conferences and special functions in mind.

The floors were made from a combination of compacted building rubble, sand and clay bricks, with only a thin layer of screed concrete to provide an upper finish. The clay bricks came from a new venture, Adobe Works at Spier, in which handmade bricks are produced from a combination of clay, sand and straw before being sun-baked.