Atty. Geoff Brennan

Atty. Geoff Brennan

Geoff acts for major contractors, developers, property owners and government agencies in South Australia and nationally. Clients include ASX-listed companies, large construction businesses and government principals engaged in commercial, industrial and infrastructure projects.

Call (202) 329-1654 Book Appointment

Profile Summary

About Geoff Brennan at a glance

Geoff Brennan is an attorney, practicing at Thomsons. Recognitions include Best Lawyers in America — Construction / Infrastructure Law (2027) and Best Lawyers in America — Awards: (2027). Serands clients in Adelaide and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Geoff acts for major contractors, developers, property owners and government agencies in South Australia and nationally
  • Clients include ASX-listed companies, large construction businesses and government principals engaged in commercial, industrial and infrastructure projects
  • Geoff advises on front-end construction contracting and the full range of building and construction disputes
  • His practice covers security of payment claims, variation and time-related claims, defect disputes and professional negligence claims against consultants
  • He represents clients in Federal and State Court proceedings, arbitrations, expert determinations and all forms of alternative dispute resolution
  • Geoff has acted on significant joint venture disputes subject to ICC arbitration, major apartment development contracting in the Adelaide CBD and complex commercial disputes in South Australia’s superior courts
  • His experience spans both front-end advice on negotiating and preparing construction contracts and back-end management of contested claims

Frequently Asked

Common questions about Geoff Brennan

Where is Geoff Brennan's law office located?
Geoff Brennan's law practice is located in Adelaide. The firm is Thomsons. You can contact the office directly through this profile page.
How can I contact Geoff Brennan for a consultation?
You can contact Geoff Brennan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Geoff Brennan received?
Geoff Brennan's notable recognition includes: Best Lawyers in America — Construction / Infrastructure Law; Best Lawyers in America — Awards:.

Awards

Best Lawyers in America — Construction / Infrastructure Law
- 2027
Best Lawyers in America — Awards:
- 2027

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