Minor repairs and maintenance

You do not need a permit for the maintenance or repair of the building envelope (siding) that uses identical materials, colour, texture and form.

Replace exterior siding

You must obtain a permit to replace, in whole or in part, the exterior siding of a wall, whether the colour, texture or form. Depending on the requirements of Québec’s building code, non-flammable materials may be required.

Prohibited materials 

The following materials are prohibited: 

• plastic membrane, tar paper, mineral or vinyl surface roll roofing, and similar roll roofing
• particleboard panels, material not designed for exterior use or unfinished in appearance
• glass, mirror and any other material with an exterior daytime light reflection rate higher than 20 per cent over more than five per cent of the surface of a façade, including openings
• asphalt shingles, except for a coping

Transparent panels and solariums composed of flexible membranes of polycarbonate or other plastic materials are prohibited in all areas.

Building appearance

In most cases, 80 per cent of the facade of a building must be clad in masonry and this masonry must continue partially on lateral walls.
However, for a detached building located in a zone where only buildings of one dwelling (category H.1) are authorized, these requirements do not apply.

Semi-detached and contiguous buildings

The facing of a building extending as far as the common line with a similar building must be the same in form, colour and texture.
If the building is located in a heritage area or on a heritage site, additional requirements may apply.
Contact the permit counter to verify the rules applicable to your situation.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

• Règlement d'urbanisme de l'arrondissement Ahuntsic-Cartierville (01-274)

Minor repair and maintenance

A permit is not required to maintain or repair existing siding and to repair brick or stone joints (pointing) on an exterior wall.

Replace exterior siding

A permit is required to replace or modify the siding on an exterior wall.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

In person

Minor repairs and maintenance

A permit is not required to maintain or repair siding (pointing) on an exterior wall. 

You can also replace up to 25 per cent of the siding on an exterior wall without a permit, if you replace it with the same materials (shape, appearance, texture, colour).

If your building is located within the Mount Royal Heritage Site, you must obtain authorization from the borough before you carry out the work.

Major repairs

A permit is required to replace more than 25 per cent of the siding on an exterior wall or to use a different material.

Prohibited materials

The following materials are prohibited:

• plastic membrane or similar roll siding 
• tar paper, mineral or vinyl surface roll roofing
• particleboard panels, material not designed for exterior use or unfinished in appearance
• glass, mirror and any other material with an exterior daytime light reflection rate higher than 20 per cent over more than five per cent of the surface of a façade, including openings
• asphalt shingles, except for a coping
• treated wood visible from a street, adjacent to the property and not covered with opaque stain or paint

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair siding (pointing) on an exterior wall. 

You can also replace up to 50 per cent of the siding on a storey without a permit, if you replace it with the same material.

Major repairs

A permit is required to replace more than 25 per cent of the siding on an exterior wall or to use a different material.

Prohibited materials

The following materials are prohibited:

• rough-sawn lumber (not planed), except for decorative features on the building
• tar paper or papers that imitate stone, brick or any other material
• fiberboard
• particleboard, pressed wood and plywood panels
• hollow concrete blocks, except for split face or grooved architectural blocks 
• brick or stone screwed to a wall and not bound with mortar
• insulation material, such as polyurethane
• non-enamelled, factory-made sheet metal, galvanized or not
• non-architectural sheet metal, except for industrial buildings in industrial zones
• clapboard, aluminium or vinyl board placed vertically or at an angle
• non-woven and non-laminated plastics and polyethylenes
• asphalt shingles, used for purposes other than roofing
• paint imitating or tending to imitate natural materials
• mortar coatings imitating or tending to imitate stone or brick
• materials or products serving as insulation
• fibreglass

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair the siding (pointing) on an exterior wall.

Replace exterior siding

A permit is required to replace the siding on an exterior wall, in part or in full.

Prohibited materials

You are required to use one of the following new materials as exterior siding on a building:

• brick
• natural stone
• acrylic
• stucco
• architectural concrete
• precast concrete panel
• light concrete panel covered with acrylic
• painted or stained wood
• aluminium or steel siding
• masonite siding
• enamelled metal cladding
• pre-painted aluminium 
• tempered glass (curtain wall), if designed for that purpose

Depending on the use of your building (residential, commercial, industrial, mixed-use), you must ensure that all the façades contain a percentage of masonry.

Please contact the permit counter for further information.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair the siding (pointing) on an exterior wall, except in the following cases:

• classified heritage immovable
• significant architectural witness
• located within the Mount Royal Heritage Site
• located in the protection area of a classified heritage immovable

Major repairs

A permit is required to:

• carry our major repairs 
• replace siding
• replace lintels
• replace apron walls

Materials

You are required to use original siding materials on existing constructions, 

The following materials are prohibited, except if they are original architectural components:

• plastic membrane, tar paper, mineral or vinyl surface roll roofing, and similar roll roofing
• particleboard panels, material not designed for exterior use or unfinished in appearance
• concrete bricks
• hollow concrete blocks
• vinyl, metal or wood composite clapboard
• any masonry with a thickness of less than 40 mm, except a rough plastic siding or an acrylic coating

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair up to 50 per cent of the siding on an exterior wall, except if your building has heritage status.

Major repairs

A permit is required to replace more than 50 per cent of the siding on an exterior wall or to replace the siding on a building with heritage interest.

Authorized materials

If the façade of a building located in an area of significant value is visible from the street, you must ensure that the replacement siding has the same form, appearance, texture, colour and modulation as the original siding. This requirement also applies to coping, lintels and apron walls.

You must also ensure that the exterior siding on your building harmonizes with the siding on neighbouring buildings. Only use authorized materials. For example, if you must opt for brick siding, it must have the following characteristics:

• clay bricks
• fine-grained texture 
• colour similar to the dominant colour in the area
• metric modular or Québec format
• present in a masonry construction

A building not located in an area of significant value can have siding in a different colour than the original, provided that the colour is on the table for its landscape unit. Please contact the permit counter for further information.

Prohibited materials

The following materials are prohibited on all parts of a building visible from the street:

• plastic membrane or similar roll siding 
• tar paper, mineral or vinyl surface roll siding 
• particleboard panels or panels unfinished in appearance
• asphalt shingles
• nailed brick or brick panel
• glass or mirror with a daytime light reflection rate higher than 20 per cent over more than five per cent of the surface of a façade

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair siding (pointing) on an exterior wall.

Replace exterior siding

A permit is required to replace the siding on an exterior wall.

Authorized materials

• brick
• natural or artificial stone
• marble or slate
• painted or stained wood
• architectural concrete with finish 
• aluminium, vinyl or pre-painted steel siding
• pre-painted masonite siding
• wood shingles or beams
• stucco
• acrylic
• glass, glass curtain wall
• pre-painted metal panel
• fibre cement siding or panel

In addition to the materials cited above, the following materials are authorized on farm buildings:

• enamelled metal 
• polyethylene and other similar materials

Painting

Painting brick or stone walls is prohibited, unless they are already painted.

Prohibited materials

The following materials are prohibited:

• horizontal wood, aluminium, vinyl, steel or masonite siding exceeding 130 millimetres in width
• brick not made of burnt clay in a natural colour or not covered with enamel finish
• mortar that is not natural in colour and mortar that surpasses the exterior surface of the brick
• tar paper or mineral roll siding, or similar roll siding
• asphalt shingles
• polyethylene and other similar materials
• paper imitating or tending to imitate stone, brick or other natural materials
• paint imitating or tending to imitate natural materials
• natural, galvanized and non-enamelled sheet metal 
• mortar coatings imitating or tending to imitate stone or brick
• concrete blocks with no architectural finish
• materials or products serving as insulation
• plywood with no architectural finish 
• fibreglass
• pressed wood panels

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair siding (pointing) on an exterior wall.

Major repairs

A permit is required to replace more than 50 per cent of the cladding on a single floor, or if you decide to change the material.

A permit is also needed if your building has historical protection or is part of an architectural implementation and integration plan. See the interactive map for more information.

Prohibited materials

The following materials are prohibited:

plastic membrane 

• tar paper, mineral or vinyl surface roll siding, or similar roll siding
• particleboard panels, material not designed for exterior use or unfinished in appearance
• glass, mirror and any other material with an exterior daytime light reflection rate higher than 20 per cent over more than five per cent of the surface of a façade, including openings
• asphalt shingles, except for a coping
• vinyl (PVC) clapboard, except on an accessory building smaller than 15 m2 

In general, 80 per cent of the siding on a front façade (there are two front façades on a street corner) must be made up of masonry.

Certain exceptions apply. Please contact the permit counter for further information.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair the siding on an exterior wall (pointing brick or stone, repairing broken brick).

Replace exterior siding

A permit is required to replace the siding on an exterior wall in whole or in part.

Authorized materials

The following materials are authorized for use as exterior siding on a building:

• natural stone
• brick with a minimum thickness of 75 mm
• ribbed or textured architectural concrete blocks
• glass
• marble or granite panels
• prefabricated or in-situ concrete panels, with projections, relief or ribs (architectural) and a minimum thickness of 75 mm
• cement parging on the visible part of the concrete foundation walls
• non-corrugated aluminium panel with a minimum thickness of 3.2 mm and concealed fasteners
• architectural panels prefabricated from mineral composite with a minimum material thickness of 6 mm

The last two materials are not authorized on residential or mixed-use buildings with three or fewer storeys.

Additional materials are authorized based on the area and the use of the building (residential, commercial, industrial, public, mixed-use). Please contact the permit counter for further information.

Painting

It is prohibited to paint a wall siding made of masonry (brick, stone). 
Paints that imitate or tend to imitate natural or artificial materials are also prohibited.

Murals

Painting a mural on the wall(s) of your building is permitted under certain conditions.

The mural:

• must be painted on the exterior wall of a construction
• must not be painted on a wall that includes the main entrance 
• must not obstruct the openings on a building
• must not entail felling a tree
• must not be used to promote a product, service or establishment

Painting a mural is prohibited if your building or the area in which it is located has historic value (with the exception of school buildings).

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is required to carry out minor repairs (ex. pointing) and to replace exterior siding with the same material.

Major repairs

A permit is required to replace the exterior siding with a different siding.

Any change in siding is subject to a Site Planning and Architectural Integration Program (SPAIP). Extra fees and waiting periods apply, and additional documents are required.

We recommend that you go to the permit counter before you undertake the work.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $160.45 for a strictly residential building
• $472.16 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to:

• maintain or repair the siding on an exterior wall (pointing brick or stone, repairing broken brick)
• replace up to 50 per cent of the siding with the same material, except if the building has heritage status

Major repairs

A permit is required to:

• replace more than 50% of the siding on an exterior wall
• use a different type of material

Masonry

Depending on the use of your building (residential, commercial, industrial, mixed-use), you must ensure that a certain percentage of masonry is used on the first floor of the building.

Please contact the permit counter for further information.

Authorized materials

The following materials are authorized for use as exterior siding on a building:

• clay, concrete or sand brick 
• natural or reconstituted stone
• ribbed glass brick
• glass (curtain wall)
• split-face and grooved architectural concrete blocks
• architectural concrete panels
• stucco, with or without natural aggregates, with or without colouring
• synthetic stucco, with or without natural aggregates, with or without colouring
• cedar wood, log constructions, torrefied wood siding or pressure-treated wood
• vinyl, aluminium, steel or masonite panels or clapboard, pre-painted and pre-baked in a plant
• steel panel or sheet steel, pre-painted and pre-baked in plant
• fibre-cement boards or panels
• galvanized or pre-enamelled aluminium
• mechanically fixed masonry assembly panels with a thickness that can be less than 60 mm, attached or not with a mortar or cement binder
• mechanically fixed and moulded polypropylene panel cladding

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair the siding on the exterior wall of a building (brick, parging, wooden clapboard, etc.). Specifically, you can:

• seal the masonry joints
• replace a few bricks
• strip or paint wood

Replace exterior siding

A permit is required to replace the siding on an exterior wall in full.

Standards vary based on the area in which the building is located, the type of building, and its use. For example, any change in siding on a semi-detached building is subject to a Site Planning and Architectural Integration Program (SPAIP). Extra fees and waiting periods apply, and additional documents are required.

We recommend that you go to the permit counter before you undertake the work.

Prohibited materials

Construction materials not designed to serve as exterior siding are prohibited:

• building paper and board tending to imitate stone or brick
• tar paper, mineral surface roll or similar roll siding
• used materials of different types and in different shapes and colours on the same part of a building
• deteriorated, rotten or rusted materials (even partially)
• non-decorative concrete blocks or concrete blocks not covered with finishing material
• non-decorative, non-enamelled or non-galvanized sheet metal (except for Galvalume)
• veneer or particleboard panels (press wood)

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair the siding on an exterior wall (brick, parging, wooden clapboard, etc.), including masonry pointing, wood stripping and painting.

Replace exterior siding

A permit is required to replace the siding on an exterior wall.

In general, 80 per cent the siding on the front façade (there are two front façades on a street corner) must be composed of masonry.

Certain exceptions apply. Please contact the permit counter for further information.

Painting

Painting a façade made of natural or artificial stone is prohibited.

Prohibited materials

The following materials are prohibited:

• plastic membrane or similar roll siding 
• tar paper, mineral or vinyl surface roll siding
• particleboard panels, material not designed for exterior use or unfinished in appearance
• glass, mirror and any other material with an exterior daytime light reflection rate higher than 20 per cent over more than five per cent of the surface of a façade, including openings
• asphalt shingles, except for a coping

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance 

A permit is not required to maintain or repair the siding on an exterior wall (pointing brick or stone, repairing broken brick).

Replacing exterior siding

A permit is required to replace or modify the siding on an exterior wall.

Authorized materials

The following materials are authorized for the exterior siding of a building: 

• natural stone
• clay or concrete brick 
• silicate bricks or blocks
• fluted or textured concrete blocks or panels
• glass brick
• tempered glass (curtain wall)
• marble or granite panels
• torrefied wood siding, cedar shingles, hardwood panels as inserts, particleboard 
• zinc, anodized steel or anodized aluminum panels
• stainless steel panels
• solar panels
• fibre cement (siding and panel)
• Renderings on cement or concrete panels, renderings on metal laths 

Depending on the use of your building (residential, commercial, industrial, mixed-use), you must ensure that all the façades contain a percentage of masonry.

Please contact the permit counter for further information.

Paint

You can’t paint exterior siding unless it is composed of wood shingles, metal or aluminum.

Clay brick staining is permitted subject to approval under a site planning and architectural integration program (SPAIP).

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Fees are non-refundable.

• PDF file Form for interior and/or exterior modifications - Saint-Laurent (in French) [PDF 152 KB]

Minor repairs and maintenance

A permit is not required to maintain, paint or repair the siding on the exterior wall of a building (brick, parging, wooden clapboard, etc.) if:

• the total cost of the work does not exceed $3,000 
• you do not use a different siding material

Replace exterior siding

A permit is required to replace the siding on an exterior wall.

Masonry

Depending on the use of your building (residential, commercial, industrial, mixed-use), you must ensure that a certain percentage of masonry is used on the different façades of the building. Please contact the permit counter for further information.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Repairs and maintenance

A permit is not required to maintain or repair the siding on the exterior wall of a building (brick, parging, wooden clapboard, etc.). Specifically, you can:

• seal the masonry joints 
• strip or paint wood

Replace exterior siding

A permit is required to replace or remove the siding on an exterior wall in whole or in part.

If the exterior siding on your building is made up of bricks, a permit is required as soon as a brick is removed.

Any alteration of the exterior siding on a building must be carried with respect for the original components. If certain elements were eliminated in the past, they must be re-established.

Wartime houses are subject to special standards. Visit the permit counter for more information. 

Prohibited materials 

The following materials are prohibited: 

• Tar or mineralized paper or any similar paper
• Paper that imitates or tends to imitate stone, brick or other natural materials, in a package, roll or wood fibre panel, or any other similar paper
• Paint that imitates or tends to imitate a natural material
• Parging, except for a cinder block common wall or a foundation wall
• Cinder block, except for an architectural block or artificial stone
• Non-profiled sheets, uncoated or non-galvanized profiled sheet
• Polyethylene film or any other plastic
• Polyvinyl chloride (PVC)
• Masonry with bricks or blocks not bound by mortar

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit

Repairs and maintenance

A permit is not required to maintain or repair the siding on the exterior wall of a building (brick, parging, wooden clapboard, etc.). Specifically, you can:

• seal masonry joints
• strip or paint wood
• replace up to 50% of the siding material with the same material

Replace exterior siding

A permit is required to replace more than 50 per cent of the siding on an exterior wall or to replace an insert part or any other specific architectural element (apron wall, lintel, cornice, etc.).

Please make sure to use only authorized materials. For example, when a building is semi-detached and the existing masonry siding is similar to siding on the adjacent building, the new siding must also be similar to it.

Work aimed at preserving or restoring the original shape or appearance of an architectural feature is favoured.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair siding on the exterior wall of a building (brick, parging, wooden clapboard, etc.). The work must be minor. Specifically, you can:

• seal masonry joints
• strip or paint wood

Major repairs

A permit is required to replace or add siding on an exterior wall.

Attendez que votre permis soit délivré avant d’acheter vos matériaux.

Architectural harmony

If the exterior siding on your building is similar to the siding on a neighbour’s building, you must, when replacing your siding, use siding similar to that used on adjacent buildings (shape, appearance, texture, colour).

Prohibited materials

The following materials are prohibited:

• plastic membrane, tar paper, mineral or vinyl surface roll siding, or similar roll siding
• particleboard panels, material not designed for exterior use or unfinished in appearance
• glass, mirror and any other material with an exterior daytime light reflection rate higher than 20 per cent over more than five per cent of the surface of a façade, including openings
• asphalt shingles, except for a coping

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You will be required to pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex: plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

Fees are non-refundable.

Further reading: The cost of a renovation permit