Building permits in Whitby

Whitby requires a building permit for a deck over 0.6 m high and states that decks less than 0.6 m do not require one. The exact 0.6 m boundary is kept conditional.

Whitby states that a dwelling-accessory shed less than 15 m² does not need a building permit and that larger/multi-storey structures can require one.

Whitby lists finished basements among typical projects requiring a building permit and provides a dedicated residential finished-basement application route.

Whitby lists Additional Dwelling Units among typical permit-required projects and provides e-portal application routes for both principal-residence and detached ADUs.

Whitby lists additions among typical projects requiring a building permit and provides a residential alterations/additions application route.

Whitby routes residential alterations through the building-permit process, while exact requirements depend on whether the work affects structure, systems, use or other regulated building components.

Whitby lists structural alterations, adding windows or doors, and adding or removing walls among typical projects requiring a building permit.

Whitby requires a pool-enclosure permit for regulated pools; hot-tub/spa enclosure details depend on depth, cover and installation, so the broad result remains conditional.

Whitby lists carports and attached or detached garages among typical projects requiring a building permit.

Whitby lists plumbing, drains and heating systems among typical projects requiring a building permit.

Whitby states that an ordinary fence does not require a permit, while a pool safety fence/enclosure does require a permit before installation.

Whitby’s permit information and engineering standards require retaining walls to be assessed by project and site conditions. The Town does not publish one simple citywide residential height-only threshold.

Whitby requires a demolition permit when removing or demolishing a structure and publishes a dedicated demolition-permit application process.