Admitted to the Paris Bar in 2010, Tony Janvier joined OYAT as a partner in 2025.
With over 20 years’ experience, Tony’s practice focuses on construction projects, both public and private, civil engineering and building. He works on some of the biggest construction projects in France.
Tony began his career in 2004 with SARTORIO & Associés, before joining UGGC Avocats in 2008, where he became Avocats Counsel in 2012. He then spent almost 7 years as a partner at PARME Avocats, in charge of the Construction practice.
Tony provides highly operational advice, pre-litigation and litigation support to the various players involved in the construction process (owners, project managers, contractors, sub-contractors), whether at the contract negotiation stage, or during the execution of contracts, right through to acceptance and settlement of accounts.
He has extensive experience in the monitoring and contractual management of public and private worksites, the presentation and analysis of claims, and the settlement of construction disputes, both amicable and contentious.
Tony has also developed particular expertise in subcontracting, and handles disputes involving builders’ contractual and legal responsibilities and warranties, before both administrative and judicial jurisdictions.
Well-versed in the practice of legal appraisals, he oversees them on behalf of his clients.
A recognized expert, Tony Janvier regularly publishes articles in specialist journals, notably Le Moniteur des Travaux Publics et du Bâtiment.
His Oyat is located in the Marseille’s Calanques
Education
- University of Paris II Panthéon-Assas – Postgraduate degree (DESS) in Public economic law
- University of Rouen – Master”s degree in Public law
Languages
French, English
RANKINGS & AWARDS
Chambers 2026
- Tony Janvier is ranked Band 3 in Construction
“Tony Janvier is someone I find very pertinent in his analyses, he is really detail-oriented and offers solutions.”
“We work with Tony Janvier frequently, he understands our need.”
“Tony Janvier stands out for his expertise, ability to anticipate complex issues and creative problem-solving skills. This combination of skills, experience and interpersonal skills sets him apart”
“Tony Janvier provides very good legal expertise and excellent case monitoring.”
“Tony Janvier is a well-rounded lawyer because he is competent in the technical, interpersonal and economic aspects.”
Legal 500 EMEA 2026
- Construction – Tier 3 – Leading Partners
“A responsive, customer-focused, and reassuring team. Excellent legal and technical skills. Proactive in offering solutions.”
“Expertise, added value of support. Complete team.”
“Within the team, Mr. Tony Janvier stands out. His excellent technical expertise, combined with rigorous analytical skills, allows him to provide clear and secure solutions, even in the most complex cases. He also distinguishes himself through his close client relationships, his innovative approach to finding legal solutions, and his collaborative leadership, which fosters cohesion and efficiency within our legal team. These qualities make him an exemplary lawyer.”
“This team is distinguished by: Recognized and highly specialized legal expertise. Attentive listening and personalized client support. Collaborative and cross-functional work among its members. A solid reputation that positions it among the most competitive teams in the market.”
“Tony Janvier and his team provide excellent advice.”
Décideurs / Leaders League 2026
Promotion & Construction
- Advising and contracts (markets and construction) / Excellent
- Construction litigation (including insurance) / Excellent
- Real estate development / Highly recommended
Best Lawyers 2027
Tony Janvier is recognized in The Best Lawyers in France for work in Construction Law
Best Law Firms 2027
Regional Tier 3 – Paris : Construction Law
“Tony Janvier stands out for his expertise, ability to anticipate complex issues and creative problem-solving skills. This combination of skills, experience and interpersonal skills sets him apart.” – Chambers
