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    Louis des Cars
    ADVANT Altana - Paris
    Partner

    Louis des Cars

    ADVANT Altana - Paris
    Partner

    Expertise

    Louis des Cars specializes in the resolution of large-scale disputes and litigation in the Public Economic law and Construction law domains.

    He holds particular expertise in public procurement contracts (drafting and discharging of contracts), mainly involving hospitals, transport infrastructures and telecommunications installations, and in private construction transactions (disputes between project owners and builders, subcontracting).

    He also actively represents clients in litigation relating to town planning approvals.

    Admitted to the Paris bar in 1999, Mr. des Cars practiced at Rambaud Martel (1999) and Proskauer Rose (2005) before joining ADVANT Altana as a partner upon its creation in 2009.

    Education

    • Master’s Degree in Public Economic law (l’Université de Paris II-Panthéon Assas) (1996)

    Awards

    Legal 500 2026
    Administrative & Public Law - Tier 5

    ADVANT Altana provides legal services in all areas of public enterprise law and has outstanding expertise in regulated sectors such as telecommunications, energy, construction, and infrastructure. The firm also has extensive expertise in dispute resolution, particularly in the area of administrative liability.

     

    Legal 500 2026
    Louis des Cars - Leading Partner - Construction
    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
    Real Estate Development & Construction: Consulting and Contracts - "A MUST-HAVE"
    Chambers Europe - France 2026
    Louis des Cars for Construction - Band 2

    "We are getting a very good level of support from Louis des Cars and his teams."

     

    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.”
     

    Legal 500 EMEA 2025
    Administrative and public law - Tier 5
    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.”

    Best Lawyers 2018, 2019, 2021, 2023, 2025
    Law firm of the Year: “Construction Law in France”
    Best Lawyers 2024
    Recognised since 2018 (Public Law | Construction Law)

    Publications

    Marchés publics : la fin de la condamnation des ententes intragroupe 
    Louis des Cars co-authored with Marie Hindré
    in: Le Moniteur, January 2021

    Covid-19 : quelles règles pour l'urbanisme et la construction de demain ? 
    Louis des Cars co-authored with Cécile Panien-Ferouelle
    in: Le Moniteur, June 2020

    Quand le Conseil d'Etat rompt le cercle vicieux lié aux servitudes de cour commune 
    Louis des Cars co-authored with Cécile Panien-Ferouelle
    in: Le Moniteur, June 2020

    Crise sanitaire : le parcours encore trop incertain des délais de mise en œuvre des autorisations d’urbanisme 
    Louis des Cars co-authored with Cécile Panien-Ferouelle
    in: Le Moniteur, May 2020

    Commande publique - Un imprévu dans le code 
    Louis des Cars co-authored with Bérangère Dufresne
    in: Le Moniteur, October 2019