Performance Solution

Solutions for Design

Our Services

Specialist Discipline

Design Solutions

Our focus is on specialist design consulting to help bring our clients' designs to life


In 2022, Dobbs Doherty Fire Safety Engineers, Cogent Acoustics, 3D Access, and 3D Building Solutions became DDEG: Dobbs Doherty Engineering Group. A 100% Australian owned and operated specialist discipline engineering consultancy. The only thing that changed is our name.

With offices in 5 different locations, we have national expertise in all building types, occupancies and configurations. We have a proud and successful history of delivering projects of all sizes since 2012.

In addition to technical excellence, we pride ourselves on providing the highest level of client service through frequent communication and timely deliverables. DDEG has maintained long standing industry relationships and by maintaining these values and continuing to work hard for all its clients.

Our areas of expertise include the specialist building engineering disciplines of Fire Safety, Disability Access, Acoustics & Building Solutions. Whatever the challenge, we will work with you to identify the solution that achieves the best result for all stakeholders involved.

Who We Are

About Our Company

DDEG is made up of a team of engineers and building industry specialists who focus on developing unique & innovative solutions to help bring our clients projects to life. Clear and on-going communication form part of our companies values, to ensure the best outcome for everyone in the design team.


Year of Establishment




Professional Employees