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    Lucille Montaut
    ADVANT Altana - Paris
    Counsel

    Lucille Montaut

    ADVANT Altana - Paris
    Counsel

    Contacts

    T : +33 (0)1 79 97 97 21

    lucille.montaut@advant-altana.com

    Expertise

    Lucille holds a Master 2 in International Economic Relations from the University of Paris II Panthéon-Assas and a Certificate in International Legal Studies delivered by the Institut des Hautes Etudes Internationales (Université Paris II Panthéon-Assas). She also worked at several law firms, including in Australia. 

    Lucille Montaut has developed expertise in multi-jurisdictional litigation and alternative dispute resolution, specifically related to major infrastructure projects, concessions and industrial projects, notably in the energy sector. 

    She has also developed expertise in the proceedings regarding challenges of international awards rendered in cross-border arbitration disputes.

     Lucille advises in contract negotiations, contract management and claims, regarding contracts submitted to both private or public law. 

    She represents clients in judicial, administrative and arbitral litigation. Mrs Montaut was a lecturer at the University Paris-X (law of contract). Admitted to the Paris bar in 2014, she joined Altana the same year.

    Education

    • Master 2 in International Economic Relations from the University of Paris II Panthéon-Assas.
    • Certificate in International Legal Studies delivered by the Institut des Hautes Etudes Internationales (Université Paris II Panthéon-Assas).

       

    Client Matters

    COSEA : 
    advising a constructor regarding a claim under a concession contract (design-build-operation) for a high-speed railway line and the subsequent proceeding before the administrative courts.

    WE BUILD: 
    representing a company in charge of the construction of a main road in pro-ceedings before the Court of appeal of Paris regarding the enforcement and the challenge of different partial awards, the Arbitral Tribunal having ruled on decisions of a dispute board.

    EOLMED :
    advising on a dispute in connection with the construction of an offshore wind turbine pilot farm project
     

    Awards

    Legal 500 2026
    Construction - Tier 1

    Recognised as one of the most accomplished firms in the market, ADVANT Altana stands out for its depth of expertise, cross-border capability, industry insight and ability to function as a single point of contact for the entire life cycle of a construction project.

    Décideurs 2026
    International Arbitration - "HIGH PROFILE"
    Décideurs 2026
    Construction Litigation - "A MUST-HAVE"
    Décideurs 2026
    Real Estate Development & Construction: Consulting and Contracts - "A MUST-HAVE"
    Chambers Europe - France 2026
    Construction - Band 1

    “The ADVANT Altana team was very quick to understand our issues. The lawyers understand the business and provide great tailored advice." 

    "We were delighted with the quality of the services provided by ADVANT Altana. I would like to emphasise the high quality, reactivity and competence of the firm."

    "The team demonstrates excellent listening and analytical skills. The preparation of contentious briefs is quick and efficient.”
     

    Best Lawyers 2026
    Construction Law
    Chambers France 2025
    Construction - Band 1

    "They have a very good command of construction law and public procurement. They also listen to clients and have a pragmatic approach."

    Legal 500 EMEA 2025
    Construction - Tier 1

    “This firm has a very strong and innovative legal practice, particularly in the construction department. Their years of diverse litigation experience have made it the go-to firm for leading builders, especially for disputes involving the administration.”

    Legal 500 EMEA 2023
    Construction – Tier 1

    Publications

    Co-author of the French Law chapter in The International Compendium of Construction Contracts
    Phillip Greenham and the Society of Construction Law Australia
    The International Compendium of Construction Contracts, de Gruyter, 2021