Mississauga ADU Permits: A Guide to Accessory Dwelling Units

Mississauga is embracing the concept of Accessory Dwelling Units (ADUs) as an innovative solution to address housing needs. These self-contained units, often referred to as garden suites or laneway houses, offer flexible living arrangements for families or rental opportunities.

Understanding the Permit Process

Application Requirements

To build an ADU in Mississauga, a building permit is required. The process begins with an online application through the city's ePlans system.
Key documents include engineered drawings, site plans, and compliance with zoning bylaws.

Recent Updates

The City of Mississauga has streamlined the permit process to encourage more homeowners to consider ADUs, with updated zoning bylaws to facilitate easier approvals.
As of 2025, there are no fees to register a second unit, though costs may include building permits

Statistics and Insights

ADUs are increasingly popular in Mississauga, with gradual adoption expected to continue. They are permitted on many residential lots, offering a practical solution to the housing crisis.
Mississauga's approach aims to increase the availability of affordable housing while maintaining neighborhood character.

Leisure Suites: Your Partner in ADU Development

At Leisure Suites, we specialize in guiding homeowners through the complexities of the ADU permit process. Our team is well-versed in Mississauga's requirements, ensuring a smooth journey from concept to completion.

Expert Guidance

We assist with all necessary documentation and compliance checks to prevent delays.