Major construction projects in today’s environment present multiple challenges: the capacity and willingness of owners and the contracting market to absorb risk, market timing, regulatory and permitting issues, safety, tariffs, complex financing structures, disputes and other factors that can threaten schedules and budgets. Osler’s Chambers Canada Band 1 ranked Construction practice helps clients anticipate, manage, and resolve these challenges so capital projects are delivered with confidence.
Our industry-focused team supports clients from the earliest stages of project planning through to operations. Beyond developing the appropriate project regulatory approval and stakeholder engagement strategy, our solicitors focus on structuring projects, negotiating contracts, arranging financing and allocating risks in ways that reflect both legal and commercial realities. If disputes arise, our clients rely on our co-located construction litigators in Osler’s Disputes team, whose practices are dedicated entirely to adjudication, mediation, arbitration and litigation. Our lawyers step in quickly with precision and practical strategies to protect our clients’ interests and keep projects on track.
Osler advises across the full spectrum of construction and infrastructure projects in Canada, including energy (wind, solar, storage, natural gas, nuclear, oil and gas), mining, technology including AI and data centres, transportation, healthcare facilities, defence and industrial processes, and public-private partnerships (P3/AFP). With U.S. capabilities, we also support clients whose projects and financing needs extend across borders.

Construction and Infrastructure Law in Canada Blog
We provide updates on important court decisions, and track legislative and governmental policy developments.
How Osler can help
- Track record on major projects: We have advised on some of Canada’s most significant projects across energy, mining, technology, healthcare, transportation, defence and industrial facilities and public-private partnerships.
- Technical depth: Many of our lawyers hold both law and engineering degrees including in geology, civil, mechanical, and engineering science, bringing practical, on-the-ground insight into complex projects.
- Integrated perspective: Our clients benefit from advice informed by regulatory lawyers, deal lawyers, and litigators, ensuring contracts are designed with potential regulatory and other risks and dispute realities in mind.
- Cross-border capabilities: We support our clients’ projects wherever they extend, with both national reach and U.S. capabilities.
- Industry leadership: Our lawyers are active members of leading construction and infrastructure organizations, ensuring our clients benefit from advice informed by the latest developments and industry trends.
- Efficient dispute resolution: Our litigators act quickly and strategically in mediation, arbitration, or litigation, drawing on deep knowledge of construction law across Canada.
Together, our team delivers the insight, experience, and strategic guidance needed to help our clients navigate every stage of the construction lifecycle with confidence.
Key Contacts
Co-Chair
Partner, Disputes, Toronto
Co-Chair
Partner, Energy and Construction, Calgary
Partner, Commercial, Energy and Co-Chair, National Construction and Infrastructure Group, Toronto, Montréal
Latest Insights
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Blog August 25, 2025
Court of Appeal overturns the application of a contractual limitation period in a construction contract
A recent decision of the Ontario Court of Appeal addressed the issue of contractual and statutory limitation periods in construction disputes.
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Blog June 23, 2025
Builders’ risk insurance: recent Ontario court decision confirms broad interpretation of coverage provisions
A recent Ontario judgment was protective of maintaining a broad interpretation of builders’ risk insurance coverage provisions.
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Webinar June 16, 2025
Navigating the 2025 CCDC updates: key changes and legal insights for construction projects
Osler’s Construction and Infrastructure group discussed the recent changes to the CCDC documents. On June 30, the Canadian Construction Documents...
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Osler Update June 12, 2025
In a welcome sign for major new project proponents, SCC breathes new life into interjurisdictional immunity
A recent SCC decision relating to interjurisdictional immunity is a welcome development for proponents of regulatory and jurisdictional certainty.
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Stay up to date with our latest insights
SubscribeAwards and Recognition
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Recognized in Construction Law (Band 1)
—Chambers Canada: Canada’s Leading Lawyers for Business -
Recognized in Construction Law
—The Canadian Legal Lexpert Directory
In the Media
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Osler News October 6, 2025
Energy lawyers George Antonopoulos and Mauryah McLaughlin join Osler’s Calgary office as partners
Energy lawyers George Antonopoulos and Mauryah McLaughlin join Osler’s Calgary office as partners.
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Osler News September 25, 2025
Osler receives top rankings in 2026 edition of Chambers Canada
Osler is proud to have once again been ranked as a leading law firm in the 2026 edition of Chambers Canada.
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Osler News June 25, 2025
Legislation to promote major project investment in Canada
Projects that have been identified by the federal government to be of national interest now have some certainty of being approved.
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Osler News June 25, 2025
Cultural change, relationship-building key to major project investment in Canada
Achieving successful major project investment in Canada will depend on shifting the approach of regulators and building stronger partnerships with...
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