Outgoing Master Builders Association head Michael McLean has refused to be drawn on whether his successor is the former head of their rival, the Housing Industry Association WA.
WAtoday understands John Gelavis finished up as executive director of HIAWA on Friday and has been selected to replace Mr McLean.
Mr McLean has been at the helm of the association for 22 years before announcing his retirement in February saying it was, "time to hand over the baton to someone younger with new ideas to take Master Builders to the next level."
Mr McLean said he wasn't able to confirm whether Mr Gelavis would take the association's reigns but there would be an announcement 'within days.'
"We'll be putting out a media release soon in relation to my successor but at the moment I'm not in a position to advise," he said.
Mr McLean said he would retire in December but a handover period would begin when his successor starts on September 17.
Mr McLean started at the association in August 1983 as its industrial relations manager and was appointed executive director in September 1996 when his predecessor, the late Harvey McLeod, retired.
The news comes as another major Perth advocacy organisation says goodbye to its longstanding chief executive.
On Tuesday Urban Development Institute of Australia WA chief executive Allison Hailes announced her resignation to move to the UK to be with her elderly parents.
UDIA WA President Nick Allingame sung Ms Hailes' praises.
“During her tenure, Allison has played a significant role in several major government reform processes including the current planning reform; housing affordability; strata title reform and improvements to development contribution schemes,” he said.