Thinking about building an additional dwelling unit (ADU)? Whether it’s for aging parents, keeping family close or extra rental income, we’re here to help you understand the costs involved in your project.
About this tool
This tool gives you a quick estimate of the municipal development charges that may apply to your ADU project. It’s designed to help you plan ahead and make informed decisions.
Note: This is an estimate only. Actual fees may vary depending on your project’s details and current policies.
Why development charges exist
We know fees can feel frustrating — but they play an important role in making sure everyone can access City services they rely on, even as Guelph grows.
Municipal development charges help us expand City services to support new homes and businesses by:
- installing pipes and delivering water so you can turn on the tap
- building sewers so you can flush the toilet
- providing roads, bike lanes, and transit so you can get where you need to go
- ensuring emergency services are there when you need them most
These investments help us grow responsibly — so that as our city grows, everyone continues to benefit from safe, reliable and high-quality services.