Ghana Planner's 50:50 Rule Could End Accra Flooding

Ghana's capital faces a flooding crisis that threatens lives and destroys property every rainy season, but one expert believes the answer isn't more emergency responses. It's smarter city planning from the ground up.

Samuel Ansong, a physical development planner and National General Secretary of Ghana's Local Government Service Association of Physical Planners, is calling for a revolutionary approach. His proposed "50:50 urban resilience development standard" would transform how cities handle rainwater in flood-prone areas.

The policy is elegantly simple. Only 50 percent of any building plot could be covered by buildings and concrete. The other half must remain green space, rain gardens, permeable paving, and systems that let water soak naturally into the ground instead of rushing into overwhelmed drains.

Ansong explained the solution aligns with Ghana's Land Use and Spatial Planning Act of 2022, which already promotes climate-resilient development and wetland preservation. The missing piece has been enforcement and coordinated action.

His vision goes beyond new construction. Existing buildings would be assessed and encouraged to redesign their compounds to better manage stormwater, turning the problem around neighborhood by neighborhood.

The planner isn't just proposing rules. He's calling for a National Technical Task Force under the Vice President's office, bringing together ministries, universities, and professional bodies to create Ghana's first comprehensive flood resilience strategy.

Why This Inspires

What makes Ansong's proposal hopeful is that it looks to proven global solutions while staying practical for Ghana's context. Cities like Tokyo, Singapore, and London already use underground stormwater tunnels and integrated drainage systems that work with nature rather than against it.

The task force would map every flood-prone community, identify natural waterways and drainage gaps, and create a Greater Accra Flood Risk Atlas. This science-based approach replaces guesswork with data and long-term planning with emergency reactions.

Ansong proposed funding through an "Accra Flood Resilience Fund" sourced from national budgets and district assembly funds. His argument is economically sound: investing in prevention through proper planning costs far less than repeatedly rebuilding after disasters.

The approach treats wetlands and green spaces not as wasted development opportunities but as vital urban infrastructure that provides free flood protection. Restoring degraded wetlands and preventing encroachment becomes a priority, not an afterthought.

Ghana already has the legal framework through its 2022 planning act and 2025 revised zoning guidelines. What Ansong offers is a clear roadmap to turn those laws into lived reality, protecting communities before the next flood season arrives instead of cleaning up after.

His message resonates beyond Ghana: the solution to urban flooding lies in working with nature, not paving over it.