Barrie, ON

Building permits in Barrie

Barrie describes a building permit as the legal permission to begin construction, subject to any other required municipal approvals.

Official sources checked Sep. 24, 2026

Permit rules by project

Pick the project that matches your work. These are starting rules for Barrie; property-specific zoning, heritage and trade approvals can still apply.

Decks

Permit required

Barrie publishes a dedicated residential deck building-permit application checklist and routes residential decks through its building-permit portal.

Basement renovations

Depends on scope

Barrie publishes a residential interior-alteration building-permit checklist covering floor plans, wall sections, structural and mechanical changes; exact basement scope determines the permit path.

Secondary suites & ADUs

Permit required

Barrie publishes a Second Suite Building Permit Application Checklist and routes secondary dwelling work through the building-permit system.

Interior alterations

Depends on scope

Barrie has a dedicated residential interior-alteration building-permit checklist. The exact permit requirements depend on architectural, structural and mechanical changes.

Walls / structural work

Depends on scope

Barrie’s residential alteration checklist requires structural drawings where structural members are changed; the exact approval path depends on the proposed alteration.

Pools / hot tubs

Depends on scope

Barrie requires a Pool Enclosure application for regulated pools; the portal also addresses above-ground pools and lockable hot-tub lids, so the exact enclosure result depends on the installation.

Garages / carports

Depends on scope

Barrie routes detached covered accessory structures over 10 m², including garages and carports, through a residential accessory-building permit application.

Retaining walls

Confirm with city

Barrie’s building-permit portal identifies retaining walls as designated structures, but the current portal material does not provide one simple residential height-only threshold that applies citywide.

Demolition

Depends on scope

Barrie states that a demolition permit applies when a structure is completely removed; if part remains, the work is treated as an alteration permit.

Apply or ask Barrie

Use the municipality’s permit office for current forms, fees, drawings and questions about your property.

Barrie Building Services / Service Barrie

Hours
Mon–Fri, 8 a.m.–5 p.m. for Service Barrie phone support
Address
City Hall, 70 Collier Street, Barrie, ON L4M 4T5
Contact the permit office ↗

Your application route

Open the official permit page ↗

Use the official permit page to confirm project requirements, forms, fees and the current application process.

Other approvals

Barrie handles the municipal building/plumbing layer. Electrical work is normally a separate ESA notification/inspection stream, and gas/fuels work is regulated through TSSA/authorized fuels contractors. A building permit does not replace those trade approvals. Province/authority source ↗

Good to know in Barrie

  • The city notes that permitted building projects are subject to mandatory inspections at specific stages of construction or demolition.
  • Ontario municipalities issue building permits within the provincial code framework, while zoning and other local approvals still apply to the property. Trade, conservation, heritage or utility approvals may be separate.

Official sources

Use these official links to confirm the current rule for your Barrie property.

View 1 official source

Sources checked Sep. 24, 2026. Requirements can change; the municipality makes the final permit decision.

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