DDEG’s BCA Consulting service delivers full-spectrum National Construction Code compliance advice across Australia. Whether you’re navigating a complex mixed-use development, retrofitting a heritage building, or responding to a building notice, our team provides clear, decisive guidance from day one.
Unlike generalist certifiers, our consultants bring specialist depth across fire safety engineering, accessibility, acoustics, façade engineering and ESD — enabling us to resolve compliance challenges holistically, not in silos.
NCC 2022 & 2025 expertise
All building classifications
Performance Solution authoring
State variation specialists
Expert witness & peer review
Construction-stage support
Our BCA consulting team delivers across all compliance categories, from advice and strategy through to full performance solutions.
Clear, concise BCA reports for all building types, backed by over 10,000 submissions in our database.
Alternative compliance pathways defined by performance principles rather than prescriptive code requirements.
Accurate building classification underpins every compliance decision across the project lifecycle.
Standard ESM components assessed and managed for all buildings at every stage of construction and occupation.
Legal expertise and strategic advice for responding to building notices and orders across all built forms.
Independent review and certification of performance solutions produced by other consulting firms.
Detailed analysis of existing buildings against current code, including council application support where required.
Expert witness capability for legal proceedings requiring technical fire and BCA engineering evidence.

DDEG’s BCA consulting team is built from 85+ expert engineers and BCA specialists, capable of handling Australia’s most complex projects. Over 13,000 projects delivered — and counting.
What started in 2012 as a fire safety firm has evolved into Australia's leading multi-disciplinary BCA consultancy. By combining design, operations and BCA specialists, our approach gives clients a single, capable partner.
Performance is our core method. We understand every building project's design intent and develop pathways that meet code without compromising your vision. We set fair pricing and deliver with commercial efficiency.
Eight offices across Australia means dedicated teams who know state-specific legislation intimately. National scale, local expertise — at every location.




Your first project is just a phone call away — a conversation is all it takes to get your project on track.
Understanding your design objectives and compliance context.
Fast turnaround, clear scope, and transparent fee proposal.
We develop your BCA compliance approach and performance pathway.
Detailed technical report prepared and submitted for approval.
We support you through the authority approval process.
Every project brings its own set of constraints and regulatory challenges. Our case studies highlight how DDEG solutions have supported real projects through technical analysis, collaboration, and performance-based design.
Our nationally operating BCA consulting team has the experience to work across all sectors and all project scales — from residential apartments to major infrastructure.
Residential & Apartments
Healthcare
Commercial Office
Childcare
Retail & Shopping Centres
Education
Hospitality & Hotels
Corrections
Hospitality & Hotels
Hospitality & Hotels
Community & Cultural
Heritage & Adaptive Reuse
Correctional Facilities
Chartered Professional Engineer – Engineers Australia
ACA – Access Consultants Association
IFE – Institution of Fire Engineers
AIBS – Australian Institute of Building Surveyors
RBP – Registered Building Practitioner
AAAC – Australasian Acoustical Consultants
SFPE – Society of Fire Protection Engineers
NFPA – National Fire Protection Association
Chartered Professional Engineer – Engineers Australia
Engineers Australia
NATA Accredited – Onsite Façade Testing
ISO 9001 / 14001 / 45001 Certified