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A garden shed is an accessory building. Other accessory buildings include gazebos, cabanas, change houses, pool equipment sheds and detached garages, etc. A building permit is required for the construction of accessory buildings greater than 10 square metres (108 square feet).

Information regarding minimum setback requirements can be obtained by contacting the Planning and Building Services department.


Two sets of complete construction drawings, drawn to scale, must accompany all applications for permits.

When a permit has been issued, City building inspectors conduct inspections for the levels of construction outlined on the issued permit; however, for complex projects (and some minor projects) a schedule of inspections may be required to be arranged with the local inspector.


Inspections, depending on the construction being done, may include some or all of the following stages: footings prior to pouring concrete, foundations prior to backfilling, framing, insulation, final/occupancy.

It is the responsibility of the owner, or his or her agent, to call for inspections during certain stages of project construction.

To arrange an inspection, please contact the Planning and Building Services department at least 48 hours in advance to schedule the date for the inspector to visit your project.


See the 2018 Schedule of Rates and Fees. Go to pages 46 - 58 for Planning and Building Services.

Copyright © 2014 The Corporation of the City of St. Catharines