Road infrastructure is essential for societal development, but is increasingly affected by flooding due to climate change. Sustainable Urban Drainage Systems (SUDSs) have recently emerged as an alternative to traditional drainage systems for better stormwater management and improved resilience. However, their uptake is still slow in Small Island Developing States (SIDSs). This research was conducted in Mauritius, which is a SIDS of volcanic origin, approximately 1,865 square kilometres in size and characterised by coastal plains and mountainous regions in the central part. The aim was to understand the potential for integrating various SUDS in major road projects and identify existing barriers and potential enablers. A qualitative approach was used through a semi-structured interview with 20 experts who have worked on highway infrastructure projects in Mauritius to gather information relevant to the research aim. Results showed that for Mauritius, the most feasible solutions were swales, soakaways, and infiltration trenches, due to their ease of implementation and lower costs. However, soil infiltration and water table levels pose significant challenges. However, other SUDS types, such as retention ponds, bioretention areas, and constructed wetlands, were not considered favourable due to their large land requirements. Permeable paving areas, although successfully used in parking areas and pedestrian walkways, were also rated poorly for integration into major road projects due to their lower traffic-load-bearing capabilities and riding quality, and to higher noise generation. Potential enablers identified included financial incentives, governmental regulations, and the implementation of pilot projects as showcases for SUDS efficacy in managing stormwater. The study has contributed to identifying the most suitable SUDS components for implementation in road projects in Mauritius. It can help provide a strong reference for other similar SIDS in establishing economic and regulatory policies to foster their uptake by engineers, planners, and land developers.