Construction Contracts

Construction Contracts

Construction endeavours are always major investments in the future. In order to fulfil business goals, the legal aspects of the project have to be handled in a proactive and controlled manner. An experienced advisor is a crucial help in ensuring the success of your project.

Be it new-build or renovation, our experts are quick to distinguish the relevant characteristics and risks related to a project. We know the typical challenges in both building and civil construction, and can provide you with practical solutions to draft well-functioning agreements and avoid disputes.

We provide support for your construction project from start to finish, including the following tasks:

  • Advice during project planning and risk assessment related to methods of implementation
  • Advice during procurement or bidding
  • Drafting construction contracts and design or consultancy agreements
  • Co-operation and framework agreements and other contracts related to implementation
  • Management of claims during construction
  • Warranty and defect liability matters
  • Dispute resolution

Our lawyers have a multidisciplinary educational background and practical experience from the real estate and construction industry. We have in-depth knowledge of the widely used standard forms of contract in Finland (e.g. YSE 1998 and KSE 2013 general terms), and also provide you with cutting edge information on up-and-coming developing trends such as construction management contracts, integrated project deliveries and alliancing. We are particularly well-versed in questions related to large property development and infrastructure projects.

Our experienced attorneys routinely handle construction disputes in litigation and arbitration, and you can trust us to also make use of alternative dispute resolution tools such as mediation or adjudication boards.

Latest references

We advised Neste Corporation on the refinancing of its EUR 500 million term facility by way of two EUR 250 million bilateral term facilities provided by OP Corporate Bank plc and Danske Bank A/S, Finland Branch.  Each term facility has a maturity of three years with extension options.
Case published 25.11.2025
We are assisting Prisma Properties AB in a sale and leaseback arrangement with Kesko Oyj comprising ten grocery retail properties. The transaction value is approximately EUR 59 million, and the properties are located in Sastamala, Jyväskylä, Lappeenranta, Vihti, Oulu, Saarijärvi, Liminka, Imatra, Loviisa, and Eurajoki.  As part of the arrangement, the properties are leased back to Kesko Oyj under lease agreements with a weighted average lease term of 11.6 years. The portfolio includes well-known store concepts such as K-Citymarket, K-Supermarket, and K-Market.
Case published 20.11.2025
We advised the urban developer and construction company YIT on the drafting and negotiation of two construction agreements with the leading algorithmic trading firm XTX Markets for the development of two data centres in Kajaani, Finland, which are part of XTX Markets’ data centre complex. The first agreement, valued at approximately EUR 100 million and signed in December 2024, marked the commencement of the construction of the first data centre facility in Kajaani, establishing Kajaani as a strategic hub for high-performance computing infrastructure.  Building on the success of this collaboration, YIT and XTX Markets entered into a second agreement in August 2025 to commence construction of a second data centre facility. This phase includes the delivery of the shell and core of the new building.
Case published 20.11.2025
Castrén & Snellman acted as legal advisor to Coöperatieve Rabobank U.A. in its capacity as sole lender and hedging bank providing senior financing to Olana Energy for a Battery Energy Storage Systems (BESS) portfolio in Finland. Our advice included preparing a legal due diligence report on the projects as well as advising on the negotiation of the various finance and project agreements. Olana Energy is a management-owned fast-growing independent power producer with an international pipeline of over 1 GW. The diversified portfolio of assets ranging from 5 to 30 MW reinforces the Finnish grid at a granular level.
Case published 18.11.2025