Implementation
Green Stormwater Infrastructure (GSI) is intended to replicate natural water processes by managing rainfall as close as possible to where it lands, rather than relying solely on drainage networks after runoff has formed. It includes decentralised measures such as rainwater tanks, green roofs, trees, rain gardens, bioswales, soakaways, and permeable pavements. These measures slow and reduce runoff from roads and paved areas, supporting more effective surface-water management and easing pressure on the drainage system during heavy rainfall. GSI also helps protect water quality by capturing sediments and pollutants before runoff reaches the sea or infiltrates into the ground. In addition, GSI can conserve water by collecting and reusing rainwater for non-potable purposes, such as irrigation. As an added benefit, greener streets and roofs can help reduce urban heat, improve amenity, and enhance the overall attractiveness of public spaces. Learn more below.
Strategic Framework
The Strategic Framework sets a national direction to make Malta a “water savvy” country by integrating stormwater management into planning so that rainwater is managed near its source, with benefits for water quality, resilience, and liveability. It also outlines initiatives to study and implement GSI in parallel, so Malta can define the right long-term balance between green measures and traditional drainage infrastructure in a cost-effective way.
GSI Guidance Manual
The Green Stormwater Infrastructure Guidance Manual is a Malta-focused guidance manual that helps planners, designers, and regulators choose, place, permit, design, build, and maintain green stormwater measures. It explains Malta’s specific context (dense towns and semi-arid conditions) and promotes solutions that fit locally, including optimising traditional rainwater harvesting and using compact infiltration systems for new projects and retrofits.