Public Works Contract

Public works contracts cover the built environment: roads, bridges, buildings, drainage systems, hospitals, schools, and every other structure that a public body procures from the construction sector. They are subject to the highest financial threshold in EU procurement law, reflecting the scale and complexity typical of construction projects, and they carry specific requirements around design responsibility, performance guarantees, and subcontracting.

What is a Public Works Contract?

Article 2 of Directive 2014/24/EU defines public works contracts as contracts having as their object one of the following: the execution, or both the design and execution, of works related to one of the activities referred to in Annex II of the directive (which lists construction activities including building, civil engineering, installation, and finishing); the execution, or both the design and execution, of a work; or the realisation, by whatever means, of a work corresponding to the requirements specified by the contracting authority.

The concept of "a work" is key. A work means the outcome of building or civil engineering works taken as a whole which is sufficient in itself to fulfil an economic or technical function. This means that a large construction project broken into separate lots is still one work, and its total value determines whether the threshold is exceeded, even if individual lots are below the threshold.

Three distinct objects are covered:

Execution only: the contractor builds to the authority's design. The authority specifies exactly what is to be built and the contractor delivers it.

Design and build (design and execution): the contractor is responsible for both designing and constructing the work. The authority specifies performance requirements or functional outcomes and the contractor develops the detailed design.

Realisation by whatever means: this broader formulation covers arrangements such as design-build-finance-operate models, where a private party develops a facility to meet the authority's requirements and the authority then acquires or uses it.

The financial threshold for works contracts under Directive 2014/24/EU is approximately 5.5 million euros (net of VAT) as of 2024. Above this value, the full directive procedures apply, including mandatory publication in the Official Journal of the EU via TED.

Why it matters for bidders

Works contracts are among the most complex and valuable procurement opportunities available in the European market. The threshold is high but so is the value of successful bids. Understanding that "works" includes design-and-build opportunities, not just construction-only contracts, broadens the scope of relevant opportunities for architecture and engineering firms as well as contractors.

The aggregation rules (which prevent artificial splitting of works) mean that even if a project is phased, the total value of the works determines whether the EU threshold is met. Bidders should therefore look for projects where the overall programme value is above threshold even if individual phases are announced separately.

Example

A Finnish municipality is constructing a new secondary school. The total project cost is eight million euros, including site preparation, construction, and fitting out. The project clearly exceeds the works threshold of approximately 5.5 million euros. The municipality must publish a contract notice in the Official Journal of the EU and follow the formal competitive procedures of Directive 2014/24/EU. If it tries to split the project into three phases each below the threshold to avoid EU procedures, that is an artificial splitting of a works contract and is prohibited.

Frequently Asked Questions

Is a maintenance contract for existing buildings a works contract or a services contract?

Routine maintenance that involves minor repairs and upkeep is generally classified as a services contract rather than a works contract, because it does not constitute the execution of works in the directive's sense. However, major refurbishment, renovation, or extension of a building that creates a new or substantially altered work will be classified as a works contract and subject to the higher threshold. The line is not always bright, and contracting authorities should take legal advice on classification for borderline projects.

How does the works threshold compare to the supply and services thresholds?

The works threshold (approximately 5.5 million euros) is significantly higher than the thresholds for supplies and services (143,000 euros for central government bodies and 221,000 euros for other contracting authorities, as of 2024). This reflects the typically larger scale of construction contracts. However, the higher threshold does not mean less scrutiny; it simply sets the point at which the full EU procedures apply.

What are the subcontracting obligations in works contracts?

Directive 2014/24/EU allows contracting authorities to require main contractors to disclose subcontractors, to check that subcontractors do not fall under exclusion grounds, and in some cases to require that certain critical parts of the work are performed by the main contractor itself rather than subcontracted. Member states may also require direct payment to subcontractors as a condition of contract, which provides protection for subcontractors in long supply chains.