Green Roofs in London: SuDS Implementation and Developer Benefits

Green Roofs

London’s high-density developments face rising flood risk, making sustainable drainage systems (SuDS) a planning priority. The London Plan requires new projects to manage surface water sustainably, with many boroughs mandating green roofs on major developments.

A green roof captures rainfall where it lands, easing pressure on the city’s Victorian sewers. Extensive green roofs can retain a large proportion of summer rainfall, reducing surface water runoff while improving thermal performance and biodiversity.

For developers, integrating green roofs into designs isn’t just about compliance - it can cut the cost and footprint of conventional drainage infrastructure. In addition, it supports sustainability goals and can help developments achieve greenfield runoff rates, which speeds up planning approvals.

Recent extreme rainfall events have shown the city’s vulnerability to surface water flooding. Green roofs are now part of a wider network of SuDS measures, including rain gardens and permeable paving, being used to improve urban resilience. For developers in London, they offer a way to meet strict planning targets, reduce long-term costs, and add visual and environmental value to a project.

Contact SUDS Designs by JMS Engineers today to speak with our team about your next project.

SuDS Reports

SuDS Designs specialises in comprehensive Sustainable Urban Drainage Systems (SuDS) reports, offering an eco-friendly alternative to traditional drainage methods.

Drainage Strategies

SuDS Designs provides innovative and economical drainage strategies that meet current policies and standards.

Property Flood Resilience (PFR) Surveys

Our experienced civil engineers deliver comprehensive PFR surveys

Flood Risk Assessments

SuDS Designs specialises in comprehensive flood risk assessments.

Roads & Highways

SuDS Designs provides comprehensive roads and highways civil engineering services: Section 106, 38, and 278 agreements

---

SuDS Designs by JMS Civils help developers, architects and homeowners take a smarter, more sustainable approach to drainage - combining technical know-how with practical, cost-effective solutions. Whether it’s surface water strategies, SuDS reports or expert design advice, we make sure drainage works with your site, not against it.

Register your Project