Johan originally studied civil engineering, and later qualified as an architectural designer in South Africa, where he managed a design and construction company for more than 20 years.

He served in the management of a wildlife reserve development, chaired the aesthetical committees of 2 township developments, undertook various other residential and commercial property developments, and involved himself in the design and construction of mainly upper end residences throughout Africa.

His most recent involvement is the designing and managing of a townhouse development in Wellington, NZ.