Low impact Water Sensitive Urban Design is described as the "Integration of Urban Planning and Development with the Management, Protection and Conservation of the water cycle."

Key principles of Low Impact, Water Sensitive Urban Design are identified as:

1. Protection and enhancement of natural water systems within urban developments.

2. Protection and improvement of the quality of water draining from urban developments into outfall water ways.

3. Reduction of runoff and peak flows from urban development by the incorporation of local detention measures and minimisation of impervious substrates within the development.

4. Addition of value to the urban development by the minimisation of drainage infrastructure.

Utilising Permapave solutions for Low Impact Water Sensitive Urban design has two key advantages.

Firstly, most existing urban areas can be retrospectively upgraded to provide the advantages of Low Impact Water Sensitive urban Design.

And secondly, Permapave Low Impact solutions require substantially less land than other available solutions.

Four unique design solutions for Low Impact Water Sensitive urban design using Permapave are demonstrated:

1. Inner City or main Street Low impact Water Sensitive Urban Design
2. Rain gardens using Permapave
3. Wide verge using Permapave
4. Conventional Kerb and channel using Permapave