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Construction and Contract Law

Robust contracts and practically oriented legal advice, both before and during project execution, are of key importance to successful projects. The lawyers in Thommessen's construction group have in-depth industry knowledge and broad experience from various types of projects within all industries.

We have extensive experience from the commercial property sector, as well as the infrastructure and renewables sectors. In addition, Thommessen's construction group advises on offshore contracts, and we know that our clients benefit from the team being experienced in assisting on both onshore and offshore construction projects. We advise a large number of private and public sector clients in relation to major construction, development and modification projects. Our construction group also advises clients on complex equipment procurements and deliveries. A number of clients also want to draw on our expertise in connection with major development projects outside of Norway.

We have detailed knowledge of the standard-form contracts, as well as common contractual set-ups, used in various industries. Our expertise also covers the non-codified Norwegian contract law and principles, and specialised regulations in relevant disciplines. Thommessen's construction group advises clients in all phases of a project, including contract strategy, bidding phase, contract drafting, tender evaluations and negotiation of final contracts, ongoing advice and follow-up during the projects, as well as the handling of potential disputes and insurance issues. Our extensive expertise in dispute resolution enables us to help clients avert conflicts through targeted and early advice on new projects. We are used to working closely with our clients’ project organisations, and are able to seamlessly adapt to the complexities and characteristics of each project.

Thommessen's construction group advises developers/employers, contractors/suppliers and banks/lenders. Our comprehensive experience in advising various types of clients across industries makes us exceptionally well-qualified to provide in-depth and practically oriented advice, covering both legal and strategical aspects.

Thommessen’s construction team is particularly strong on industrial knowledge and the ability to focus on the real business needs of the clients. Client
Legal 500, 2024


  • 2024 Ranked Construction Legal 500
  • 2024 3rd Place Construction Kapital's Lawyer Survey
  • 2024 Ranked Construction Chambers & Partners
  • 2023 Tier 1 Project Development IFLR1000

The team