EN
The subject of this publication is to determine the contentious issue in the doctrine, and well-established in the judicature, regarding the admissibility of applying Art. 640 of the Civil Code. per analogiam or in accordance with the contract for construction works in the event of non-performance or improper performance of the investor.s non-pecuniary obligations referred to in Art. 647 of the Civil Code.The analyzed issues are not only theoretical, but above all practical. In construction practice, it is not un-common for an investor (general contractor) to unjustifiably evade the performance of non-pecuniary obligations referred to in Article 647 of the Civil Code (i.e. transfer of a construction site, delivery of a pro ject or acceptance of construction works), which prevents the contractor (subcontractor) from per-forming the works, and consequently – prevents the contractor (subcontractor) from demanding from the investor (general contractor) payment of the contractual remuneration.As a result, subcontractors are deprived of claims against the investor under joint and several liability referred to in Article 647 of the Civil Code, which leads to the bankruptcy of many construction contractors (subcontractors).