Basement Suite Permit in Mississauga, ON
Permits for basement finishing, secondary suites, and basement apartments.
Where Are Basement Suite Permits Being Issued?
Permit Volume Over Time
Processing Time Trend
Average days from application to approval
Year-over-Year Growth
Percentage change in permits issued vs previous year
Top Neighbourhoods
| Neighbourhood | Permits Issued | Share |
|---|---|---|
| Ward 10 | 1,097 | 22.1% |
| Ward 11 | 830 | 16.7% |
| Ward 6 | 782 | 15.8% |
| Ward 5 | 580 | 11.7% |
| Ward 9 | 387 | 7.8% |
| Ward 8 | 375 | 7.6% |
| Ward 4 | 256 | 5.2% |
| Ward 7 | 208 | 4.2% |
| Ward 2 | 191 | 3.9% |
| Ward 1 | 131 | 2.6% |
Frequently Asked Questions
Do I need a basement suite permit in Mississauga?
Yes, most basement suite projects in Mississauga require a building permit from the city. Based on our data, Mississauga has issued 4,957 basement suite permits to date, making it one of the most common permit types in the city. Requirements vary depending on the scope and size of the project. Contact Mississauga's building department for specific requirements for your project.
How long does it take to get a basement suite permit in Mississauga?
Based on our analysis of 4,957 permits, the average processing time for a basement suite permit in Mississauga is 70 days from application to approval. Processing times have been increasing in recent years. In 2026, the average was 81 days.
How many basement suite permits are issued in Mississauga each year?
Mississauga issues approximately 682 basement suite permits per year. Our data covers 2018 to present, with a total of 4,957 permits tracked. The number of basement suite permits has generally increased over time.
Which neighbourhoods in Mississauga have the most basement suite permits?
The top neighbourhoods for basement suite permits in Mississauga are Ward 10 (1,097 permits), Ward 11 (830 permits), and Ward 6 (782 permits). These areas account for 55% of all basement suite permits in the city.
How much does a basement suite project cost in Mississauga?
Based on construction values reported on 4,957 permits, the average basement suite project in Mississauga has a construction value of $91,337. The median value is $85,489, which may be more representative as it excludes outliers. Note that this is the total project construction cost, not the permit fee.
Are basement suite permits increasing or decreasing in Mississauga?
Basement Suite permit activity in Mississauga has been declining in recent years. In 2026, 77 permits were issued, compared to 781 in 2023.
What is the basement suite permit process in Mississauga?
The typical process for a basement suite permit in Mississauga involves: 1) Preparing your project plans and documentation, 2) Submitting your application to Mississauga's building department, 3) Paying the applicable permit fees, 4) Waiting for plan review and approval (average 70 days), 5) Receiving your permit and beginning construction, and 6) Scheduling required inspections during and after construction.
How does Mississauga compare to other Canadian cities for basement suite permits?
Mississauga is one of 14 major Canadian cities we track for basement suite permit data. With an average processing time of 70 days, you can compare Mississauga's basement suite permit statistics including volume trends, processing times, and neighbourhood breakdowns with other cities on our national basement suite permit comparison page.