Barrie Garage & Accessory Building Permit: Over 10 m²

Do you need a permit for a detached garage in Barrie?

Check Barrie’s residential accessory building permit category for garages, carports, sheds and similar detached covered structures.

1 min readReviewed Oct 1, 2026

The short answerConditional

Barrie’s Residential Accessory Building application covers detached covered structures greater than 10 m², including garages, sheds and carports.

Secondary dwellings are explicitly excluded from this permit class and use the general Building Permit route instead.

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What changes the answer.

Start with these conditions. The official reference is attached to each one.

Accessory building sizeApplication category applies over 10 m²Conditional

Barrie defines a Residential Accessory Building as a detached covered structure greater than 10 square metres that is not used for habitation.

Official sourceCity of BarrieBarrie Services Portal - Application List · Residential deck, accessory building and building permit application types

Verified2026-10-01Open proof

ExamplesGarages, sheds, carports and similar structuresInfo

The portal includes garages, sheds, carports, gazebos and similar structures as examples.

Official sourceCity of BarrieBarrie Services Portal - Application List · Residential deck, accessory building and building permit application types

Verified2026-10-01Open proof

Secondary dwellingUse a different permit routeConditional

Barrie states that secondary dwellings are not Residential Accessory Buildings and instead use the Building Permit application.

Official sourceCity of BarrieBarrie Services Portal - Application List · Residential deck, accessory building and building permit application types

Verified2026-10-01Open proof

Your preparation checklist

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Residential Accessory Building application
Site plan
Structure dimensions and drawings
Project-specific zoning information

Fees and timing

TimelineConfirm the current municipal review timeline after the application is accepted as complete.

FeesConfirm the current Barrie permit fee for the exact project class before filing.

Next steps

Measure floor area
Confirm the building is non-habitable accessory space
Prepare site and construction drawings
Submit through the Residential Accessory Building permit type

Same project, different city

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Send this to your designer or contractor before agreeing on the scope.

Do you need a permit for a detached garage in Barrie?

Barrie’s Residential Accessory Building application covers detached covered structures greater than 10 m², including garages, sheds and carports.

What changes the answer.

Your preparation checklist

0 of 4 ready

Fees and timing

Next steps

See how this rule changes across Ontario.

Get everyone on the same page.

Your next useful question.

What permit route applies to a residential deck in Barrie?