Des Willetts is an Associate Director at Bellandaine with more than 40 years of experience in building services as a contractor, energy auditor, and consultant across Australia. A mechanical engineer with specialist expertise in the NABERS and CBD programmes, energy auditing, and project management, Des provides expert building consultancy advice to property owners, investors, and occupiers on asset management, plant and equipment condition, technical due diligence, make good reporting, maintenance quality analysis, capital expenditure forecasting, and HVAC design.
Des’s strength lies in the combination of deep technical knowledge and commercial clarity — assessing complex buildings with precision and translating findings into risk-prioritised, actionable CapEx programmes that clients can rely on for investment planning and governance. His experience spans operationally sensitive and occupied environments including education, aged care, hospitality, and specialist facilities.
With four decades in the field, Des brings a pragmatic, evidence-based approach to building services assessment that is difficult to replicate. He knows what systems should look like, what they tend to cost to run and replace, and what the consequences are of getting the timing wrong. On complex healthcare and aged care portfolios where building services are central to operational risk, that experience is exactly what clients need.
