5 Permeable paving designs for public spaces

June 12, 2025 27

Urban planners prioritize sustainability and functionality when designing public spaces. Permeable surfaces allow water to pass through the pavement and serve as effective drainage systems for these areas. Below, we’ll outline five permeable paving designs for public spaces along with their benefits and practical applications.

1. Porous concrete

Porous concrete combines cement, coarse aggregates, and minimal fine materials to create a unique design with voids that allow rainwater to pass through. This material is used in sidewalks, parking lots, and pathways.

It also helps with water absorption and groundwater recharge. By contributing to urban groundwater replenishment and offering durability for high-traffic areas, porous concrete is an ideal solution for sustainable drainage.

2. Permeable interlocking concrete pavers

These pavers are designed with gaps between each unit filled with small aggregates. Rainwater flows into the gaps and reduces runoff. This option offers aesthetic versatility and is easy to maintain, since individual pavers can be replaced if needed.

3. Plastic grid systems

Plastic grid systems made from recycled materials use interlocking cells to stabilize gravel or grass. Lightweight yet highly durable, these grids are perfect for temporary and permanent applications. This applies to fire lanes, overflow parking, and green rooftops. They allow grass to grow through the grid for a natural look, while also providing excellent load support with minimal runoff.

4. Resin-bound gravel

This design blends natural stone aggregates with a clear resin binder to create a solid, highly permeable surface. It is ideal for handling moderate foot traffic and is commonly found in plazas and decorative pathways.

The surface evokes a contemporary appearance. Its smooth finish is nonslip and wheelchair accessible. Town squares often use resin-bound gravel to create functional pathways that provide efficient drainage and enhanced aesthetics.

5. Grass paving systems

Grass paving incorporates a grid structure beneath a landscaped surface for protection that allows grass to grow. These systems work perfectly for event spaces where flexibility and proper drainage are essential. They promote greener public spaces, reduce surface heat, and improve stormwater management by integrating vegetation. These systems are excellent solutions for multipurpose areas.

Incorporating permeable paving in drainage systems can help cities tackle water runoff challenges and create more sustainable spaces. Factors such as traffic volume, aesthetics, and environmental considerations determine which choice is the best fit. These five permeable paving designs for public spaces are a sustainable way to solve modern urban challenges. From addressing stormwater management to improving aesthetics, they meet functional needs while enhancing the usability of public areas.