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ESD / Sustainability Consultant
specialist
When you need one
Sustainability strategy, energy modelling, Section J / BASIX coordination, Green Star or NABERS targets, life-cycle assessment.
Qualifications
Engineering or architecture background + ESD specialisation. NABERS Accredited Assessor / Green Star Accredited Professional credentials common.
Professional body
Green Building Council of Australia (GBCA), Australian Institute of Architects (sustainability committee)
Typical cost (Single dwelling BASIX + thermal modelling)
A$2,500–35,000
Per-state notes
BASIX is NSW-specific. NatHERS is national but baseline shifts (NCC 2022 minimum 7 stars; NCC 2025 adoption from May 2026 brings tighter targets).
Key outputs
- ✓BASIX certificate (NSW)
- ✓NatHERS thermal star rating
- ✓Whole-of-Home Energy Use score
- ✓Section J / NCC energy compliance (commercial)
- ✓Green Star credit submissions (if targeting)
- ✓NABERS rating (commercial)
- ✓Embodied carbon assessment (life-cycle)
- ✓Passive design strategies + glazing optimisation
What triggers engaging them
- ▸All new NSW residential (BASIX mandatory)
- ▸All new dwellings nationally (NatHERS via NCC)
- ▸Class 2-9 (Section J compliance)
- ▸Green Star or NABERS targets
Notes
ESD consultants often coordinate between architect + structural + civil to optimise glazing-to-wall ratio + insulation + air-tightness. Get involved at concept design — late changes cost 5-10× more than early.