Permcon is a continuous-pour permeable concrete system designed to manage stormwater on-site, reduce runoff and support groundwater recharge. Unlike standard concrete, Permcon has a high void content (typically 20-25%) that allows water to pass through the slab and into the ground below.

This makes it ideal for areas where stormwater management, land-use efficiency and environmental performance are important.

How It Works

The open structure of Permcon allows rainwater to:

• Soak through the concrete, reducing surface runoff.
• Filter out pollutants before water enters waterways.
• Recharge groundwater naturally – mimicking undeveloped land.

This reduces the need for stormwater pits, tanks or rain gardens – and adds flexibility in site design.

Properties

• Infiltration 8,000 – 10,000mm/hour.
• Compressive strength to 25MPa.
• Slip resistance P4 0v.45 – 0.54 BPN.
• Run-off coefficient 0.3.

Installer Note

Always work in consultation with a qualified engineer, architect or landscape architect to ensure compliance with:

• Local council rules.
• Regulatory requirements.
• Site-specific design conditions.

Important: Only trained and accredited installers should carry out installation of the Permcon system.

Click below for guidance on how to install Permcon’s permeable concrete system correctly and safely.