LAWYER PROFILE

Leighton O'Brien

Asia-Pacific 2026

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Ranked in 1 practice area

About

Provided by Allens

Practice Areas

Leighton is a leading projects lawyer who practises in the areas of construction, infrastructure, procurement and dispute resolution with a particular emphasis on roads, rail and PPPs. His work includes advising on procurement strategies, the tender phase, drafting and negotiating contracts and the full spectrum of contract documents including alliances, early contractor involvement, EPC, project management, construction, design and construction, project and concession deeds and operation and maintenance contracts. Leighton acts for government and private owners, concessionaries, financiers and contractors. Leighton's practice also covers dispute resolution from security of payment to expert determination, arbitration and litigation.

Chambers Review

Provided by Chambers

Chambers Asia & Pacific

Construction - Australia

Band 1
Band 1

Individual Editorial

Leighton O'Brien is based in Sydney and is known for his assured handling of landmark road construction and other infrastructure projects, advising not only on their procurement and delivery aspects but also on the disputes that may arise from them.

Strengths

Provided by Chambers

  • Leighton is an utmost professional who comes with a wealth of experience. You're able to work with the confidence that every avenue is being tested.

    ConstructionChambers Asia & Pacific
  • Leighton enjoys a very broad practice and captains a large team covering both front-end and back-end work. He is invaluable on matters where the public and private sectors overlap.

    ConstructionChambers Asia & Pacific

Ranked Individuals at Allens (104)

Asia-Pacific Region

Australia

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