This article has an exploratory nature and it illustrates the main eco-innovation trends existing in the European construction sector, with a special focus on the Romanian building sector. This paper finds that there are more and more companies active in the Romanian construction sector, whether multinationals or SMEs, which discovered the potential benefits of environmentally responsible innovation. The value of this research lies in approaching an innovative subject, in the context of a lack of consolidated data on eco-innovation in Romanian companies, particularly in the construction sector.