The Roelof S Uytenbogaardt UDISA Memorial Lecture (RSUUML) was initiated by UDISA to honour the extraordinary contribution made by Roelof S Uytenbogaardt in the establishing and promotion of Urban Design in South Africa, as teacher, mentor, urbanist, and practitioner.

The RSUUML is also a platform to celebrate the career of a UDISA member with an outstanding contribution to the field of urban design.

Previous recipients of the UDISA RSUUML award have been:

• Julian Cooke – 2015

• Katie Ewing – 2016

• Erky Wood – 2017

• Piet Louw and Dave Dewar (in association) – 2018

• Monica Sack – 2019

• Lucien le Grange 2021

• Martin Kruger 2022

Ludwig Hansen is the 8th recipient of the award and has delivered the memorial lecture at the University of Pretoria Hatfield Campus, in February.