Johannesburg - The CEO of the Estate Agency Affairs Board (EAAB) Nomonde Mapetla has been suspended, the Sunday Times reported.
Mapetla was served with a letter of suspension on Thursday with no reasons.
Staff were told she had been placed on special leave for four weeks and an investigation into her conduct would be launched.
The suspension came days after Mapetla ordered an investigation into another industry heavyweight, Lew Geffen.
The Sunday Times reported that insiders claimed Mapetla's "gun-ho approach to investigating the big names in the industry" may have played a role and that staff at the EAAB had apparently lodged complaints about her.
The board was also unhappy with her comments in the media recently.
Mapetla said that when she took over the EAAB she was shocked at how "chummy chummy" it had been with the industry players and that it had allowed "the big boys to tell you (EAAB) how to govern the industry".
Mapetla had taken up the post of CEO six years ago.
She was credited with launching a clean-up of the industry which resulted in major players such as Wendy Machanik, Seeff Properties and Wakefields facing internal and criminal charges.