What is InSite Water?

InSite Water is an integrated water management and stormwater assessment tool for use on small-scale development sites (less than 10,000 square metres) in Australia that need quick and accurate design answers. This site will allow you to optimise design solutions to manage stormwater runoff, assessed against the Water Sensitive Urban Design WSUD policy and agreed Council performance criteria.
Rainwater Tank Sizing

Volume management reduces runoff volume, downstream flooding and helps restore stream flows. InSite water will help optimise the size of rainwater retention tanks and water infiltration pits.

Detention Tank Sizing

Stormwater flow reduction (detention) protects existing Council stormwater assets that are nearing capacity or already overcapacity. InSite Water will help you size stormwater detention tanks to meet Council requirements.

Stormwater Quality

Improving stormwater runoff quality improves the health of our rivers and coastal areas. We help you design Water Sensitive Urban Design (WSUD) treatments for smaller sites including: raingardens, infiltration, bioswales, swales and green roofs

Water Efficiency

InSite Water helps you specify water efficiency for your project to save money on bills and to increase your project’s drought resilience. This includes appropriate use of rainwater and water efficient appliances.

Note: this is the Australia wide version of InSite Water.
Do not use this site for projects located in South Australia.

How do I use InSite Water?

InSite Water is designed to be a low cost solution for design professionals to create stormwater designs that meet Integrate Water Management outcomes. To get started, create an account and start a new project. For professional use we have a range of affordable license options to help keep your project on track.
Professional Services

Solutions for Civil and Environmental Engineers, ESD Consultants and Building Design Professionals. We help you to quickly create lot scale stormwater designs that meet Council and Water Authority requirements.


We work with Councils to help simplify the stormwater approvals process for both applicants and for Council officers. Our software covers both engineering and environmental aspects of stormwater.

Water and Planning Authorities

We can customise the tool to meet your local conditions and policy objectives. Whether that is water saving for drought resilience, flood prevention, or environmental protection controls, we can provide a mechanism for the building industry to demonstrate compliance.

Academic and home users

InSite Water has inbuilt training on designing stormwater systems to meet flood prevention guidelines and environmental outcomes. We support a free report for students and home users to learn about Integrated Water Management.

Quick Start

Watch our intro video to get started