Drainage Design & SuDS

At Global Classic Engineering Consultant Company Limited, we are committed to building climate-resilient developments and preventing urban flooding through our specialized Drainage Design and Sustainable Drainage Systems (SuDS) services in Hong Kong. Our expert civil engineering team is dedicated to helping developers, architects, and public authorities effectively manage stormwater, treat foul water, and integrate nature-based water management solutions into their projects.

• Drainage Impact Assessments (DIA): Conducting comprehensive hydrological and hydraulic modeling to evaluate the potential drainage impacts of new developments and preparing formal DIA reports for the Drainage Services Department (DSD).
• Stormwater and Foul Water Network Design: Engineering efficient and robust underground pipe networks, manholes, and outfall systems for residential, commercial, and industrial sites in strict compliance with DSD and Buildings Department (BD) standards.
• Sustainable Drainage Systems (SuDS): Designing innovative "Sponge City" infrastructure—including green roofs, bioswales, rain gardens, and permeable pavements—to reduce surface runoff, improve water quality, and enhance urban biodiversity.
• Flood Risk Assessment and Mitigation: Evaluating site vulnerabilities to extreme weather events, storm surges, and typhoons, and designing engineered flood defenses and attenuation structures to protect property and life.
• Rainwater Harvesting and Attenuation: Designing underground stormwater attenuation tanks and rainwater recycling systems that capture and treat runoff for non-potable uses, significantly reducing municipal water demand.
• Statutory Submissions and Approvals: Managing the complete regulatory workflow, from conceptual design to detailed drainage plan submissions, ensuring smooth liaison with the DSD, BD, and EPD to secure all necessary permits.

• Expertise: Our team comprises experienced civil and drainage engineers with an in-depth understanding of Hong Kong’s complex hydraulic challenges and the latest DSD Stormwater Drainage Manual guidelines.
• Innovative Water Management: We excel at blending traditional "hard" engineering with "soft" nature-based SuDS solutions, creating balanced, aesthetically pleasing, and highly functional drainage infrastructure.
• Climate Resilience Commitment: We proactively design for the future, utilizing advanced modeling to ensure your development remains safe and operational even under the increasingly severe rainfall events driven by climate change.
• Client-Focused Approach: We work closely with landscape architects and master planners to integrate drainage solutions seamlessly into the site design, maximizing your usable land area while fulfilling all statutory requirements.

Partner with Global Classic Engineering Consultant Company Limited for your drainage and SuDS projects, and let us help you deliver innovative, flood-resilient, and water-sustainable infrastructure for the future of Hong Kong.