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Major works and conversions

Whether you want to extend your house, add a solarium or replace your exterior siding, any major work or structural modification to your home requires a permit. To ensure that your project complies with municipal by-laws and to avoid any inconvenience, consult the list below for the steps to follow and the documents required.

Associated with the page Residential building permits

Permit applications

Expansion

Building extensions must comply with standards for layout, height and harmonization with the existing built environment. A permit is required to ensure that the project complies with municipal regulations and safety requirements.


Facade repair

Any change to a building façade, including replacement of materials, modification of openings or addition of architectural elements, must comply with the municipality’s aesthetic and structural standards. A permit is required to guarantee the conformity of the work.


4-season solarium

The addition of a 4-season solarium must meet specific criteria in terms of insulation, structure and layout. A permit is required to ensure the safety and integration of the solarium with the main building.


3-season veranda

A 3-season veranda is subject to regulations concerning its size, location and integration with the residence. A permit is required before starting work to ensure compliance with municipal standards.


Converting a garage into a living space

Converting a garage into living space requires adjustments to insulation, ventilation and safety standards. A permit is required to validate the project’s compliance with municipal by-laws and building codes.


Installation of fixed awnings, eaves, canopies and cornices

The addition of architectural elements such as awnings, eaves, canopies and cornices can improve a building’s aesthetics and functionality, but must comply with siting and strength criteria. A permit is required to ensure compliance with municipal by-laws.


Installation of retractable awnings


Roofing work

The repair or modification of a roof must comply with precise standards in terms of materials, pitch and drainage. A permit is required for any project affecting the structure or appearance of the roof.


Interior refurbishment

Interior redevelopment work, including moving partitions, finishing a basement, modifying living spaces or installing new equipment, must comply with construction and safety standards. A permit is required to ensure that modifications are carried out correctly.


Insulation work

Improving or replacing a building’s insulation optimizes its energy efficiency and comfort. Whether insulating walls, roofs, basements or foundations, this work must comply with thermal performance and ventilation standards. A permit is required for certain interventions to ensure compliance with municipal bylaws and building standards.


Stabilization work

The presence of pyrite in the backfill beneath a foundation can cause cracks and structural deformation. Stabilizing the soil and repairing the damage requires specialized intervention. A permit is required for any excavation or backfill replacement work to ensure the safety and durability of the work.

Cracks in walls, foundations or floors may indicate structural problems requiring correction and stabilization. These operations must be carried out in compliance with current standards. A permit is required to guarantee the solidity and safety of the building.


Best practices and advice

For successful major work that complies with regulations, we recommend that you follow these best practices:

  • Hire qualified professionals: a certified contractor will ensure that your work complies with building standards and municipal requirements.
  • Choose durable, appropriate materials: opt for cladding and structures that can withstand local climatic conditions for a long-term investment.
  • Ensure good insulation and ventilation: especially for extensions, basements and garage conversions, adequate insulation prevents moisture problems and improves energy efficiency.
  • Minimize nuisance to your neighbors: inform them of upcoming work, limit noise to authorized hours and manage construction waste efficiently.

Useful resources

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