Key contacts

Michael Chehab
Counsel
Tony Janvier
Partner
Practice

Public and private construction

Our team has positioned itself as a high value-added legal partner for all stakeholders in the construction industry (project owners, project managers, works contractors, subcontractors, etc.) in the preparation and completion of major public and private projects.

Our team provides highly operational assistance in contract law and tort law as it applies to construction, whether as advisors or as part of the settlement of disputes through amicable arrangement or litigation.
We work on both civil engineering and building projects in a wide variety of sectors.
Our support is based on four pillars:

  • a highly specialized legal expertise
  • an ability to understand the technical dimension of construction operations, as well as our clients’ strategic issues, and to integrate them into the legal analysis,
  • an organization that combines availability and flexibility,
  • a concern for precision, conciseness and concreteness.

In the run-up to construction projects, our in-depth knowledge of GCCs and administrative and judicial case law, combined with our extensive experience of construction disputes, enable us to be a driving force in the legal structuring of construction operations, and to optimise contractual documentation and risk-sharing in the best interests of our clients.
During the construction phase, we see our role as an interface between the technical and legal aspects, which requires a high level of involvement in the relationship with project management.

In this way, we are able to monitor contracts in their entirety, and guarantee our clients continuous, highly operational legal support at all the key stages of the project: service orders, payment of advances and instalments, extension of deadlines, penalties, additional works, contract addenda, management control, postponement, handover of works, taking possession, preliminary operations prior to the acceptance of works and acceptance of works, termination of the contract, drawing up the general account and payment of the balance, removal of reservations upon acceptance and completion guarantee monitoring, etc.

The completion of a project can give rise to numerous technical and financial disputes between the project owner and the builders, which may result in claims. We are familiar with the mechanics of construction site claims, as well as the procedures and methods for settling disputes amicably (mediation, conciliation, transaction), and are experienced in the legal disputes and expert opinions that may arise.

Our team is also experienced in handling disputes involving the liability and warranties of builders (and their insurers) in the event of faults, defects or non-conformities before or after acceptance, which requires a high level of technical expertise.

Last but not least, we have the know-how required to follow up and effectively manage expert opinions, which is acquired through experience.

TYPES OF INTERVENTIONS
ADVICE AND ASSISTANCE IN THE RUN-UP TO CONSTRUCTION PROJECTS
  • Assistance in drafting and negotiating contracts
  • Analysis of legal and contractual risks associated with construction projects.
  • Assistance in choosing contractual arrangements and construction insurance (ten-year warranty, two-year warranty, etc.).
ADVICE AND ASSISTANCE DURING THE CONSTRUCTION PHASE
  • Assistance with contract management (service orders, scheduling, penalties, additional work, etc.)
  • Assistance in negotiating amendments
  • Securing key stages of the project (adjournment, handover, termination, acceptance, balance of accounts, etc.).
  • Monitoring of post-acceptance warranties (reservations, perfect completion, two-year and ten-year warranties)
MANAGEMENT OF TECHNICAL AND FINANCIAL DISPUTES
  • Assistance in preparing or analyzing claims
  • Assistance in negotiating settlement agreements, with or without recourse to amicable dispute resolution (conciliation, mediation)
  • Litigation before administrative, judicial and arbitration bodies
  • Assistance with expert opinions
MANAGEMENT OF DISPUTES CONCERNING FAULTS, DEFECTS OR NON-CONFORMITIES
  • Litigation concerning builders’ liability, before and after acceptance
  • Assistance with preventive injunctions and expert opinions
  • Management of warranty claims

“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

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 – Tony Janvier – 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