dbm Architects (Jhb) (Pty) Ltd dbm Architects Jhb was established in 2003 by Wynand du Plessis. Now in its 18th year, dbm Architects Jhb has grown into a team of highly skilled and passionate individuals with extensive experience gained over a multitude of various architectural disciplines and projects. The dbm Group comprises four different divisions. Apart from the Architectural Practice there is a 3-D Visualization Studio, Interior Design advisory and a Council Approvals department.