Street permit history
St. Catharines, ON
4 permitted addresses on Welland Ave appear in the public St. Catharines permit cohort, across 34 municipal permit records. Select an address for its full permit timeline.
Ranked by permit activity within the public cohort. Each address links to its full municipal permit history.
Get contractor names, permit numbers, and alerts as new permits are published on Welland Ave and across St. Catharines, updated on the municipality's release schedule.
Suggested citation: PropertyLabs. "Welland Ave Building Permits - St. Catharines." Updated Jul 20, 2026. https://propertylabs.org/building-permits/st_catharines/streets/welland-ave