Quebec Landscaping Permits: What You Need to Know Before Starting

Starting a landscaping project in Montreal without understanding the permit requirements can lead to fines, forced removal of completed work, and months of delays. Montreal's 19 boroughs each have their own urbanization bylaws, and the rules governing outdoor construction, tree removal, fencing, and even paving can vary significantly from one borough to the next.

This guide covers the permit landscape across Greater Montreal in 2026: which projects require permits, what the application process involves, estimated fees and timelines, setback requirements, and how to navigate borough-specific regulations. Understanding these rules before your project begins saves time, money, and frustration.

---

Table of Contents

• Projects That Require a Permit
• Projects That Typically Do Not Require a Permit
• Borough-by-Borough Overview
• Setback and Property Line Requirements
• Tree Removal and Protection Regulations
• Retaining Wall Regulations
• Fence and Privacy Screen Rules
• Pool and Hot Tub Permits
• Permit Application Process
• Fees and Timelines
• How Your Landscaper Can Help
• FAQ

---

Projects That Require a Permit

The following landscaping and outdoor construction projects generally require a permit or certificate of authorization in Montreal. Specific requirements vary by borough, so always confirm with your local permit counter.

The Consequences of Skipping a Permit

Working without a required permit in Montreal carries real consequences:

• Fines: Municipal fines can range from several hundred to several thousand dollars per infraction.
• Stop-work orders: The borough can halt your project mid-construction until permits are obtained.
• Forced removal: In serious cases, you may be required to remove completed work at your own expense.
• Insurance issues: Unpermitted work may not be covered by your homeowner's insurance if problems arise.
• Resale complications: Unpermitted structures can complicate property sales, as buyers (and their lawyers) may demand proof of compliance.

---

Projects That Typically Do Not Require a Permit

These common landscaping activities generally do not require a permit in most Montreal boroughs:

• Planting flowers, shrubs, and perennials in existing garden beds
• Laying sod or seeding a lawn
• Adding mulch, topsoil, or compost to garden beds
• Installing low-voltage outdoor lighting (under 30 volts)
• Building raised garden beds (small, non-structural)
• Installing a small patio in the backyard (check greening ratio requirements)
• Minor grading that does not affect neighbouring drainage
• Seasonal garden maintenance and lawn care

Important caveat: Even projects that do not require a formal permit must still comply with your borough's urbanization bylaw. For example, you may not need a permit to install a backyard paver patio, but the total percentage of impermeable surface on your lot may still be regulated.

---

Borough-by-Borough Overview

Montreal's 19 boroughs and surrounding municipalities each have their own regulations. Here is an overview of how some key boroughs handle landscaping permits.

Off-Island Municipalities

If you live in Laval, Longueuil, Brossard, or other South Shore cities, regulations differ from Montreal:

• Laval: Generally requires permits for retaining walls, fences, pools, and significant paving. Contact the Direction de l'urbanisme.
• Longueuil (including old Greenfield Park, LeMoyne, Saint-Hubert): Permits required for most construction. Specific rules on permeable surface ratios.
• Brossard: Permits required for pools, retaining walls, fences, and significant outdoor construction. Environmental protection zones near parks.

Always verify with your specific municipality, as regulations are updated frequently.

---

Setback and Property Line Requirements

Setbacks determine how close to your property lines you can build structures. These rules apply to retaining walls, fences, patios, and accessory buildings.

Typical Setback Requirements

These are general guidelines. Specific setbacks depend on your borough's zoning regulations, lot dimensions, and zone category. Always verify with your permit counter.

How to Find Your Exact Setback Requirements

1. Certificate of location: This survey document shows your property boundaries, existing structures, and registered easements. If yours is more than 10 years old, consider getting an updated one.
2. Borough urbanization bylaw: Available online or at your borough office. Search for your zoning designation and look up the applicable setback table.
3. Phone inquiry: Call your borough's permit counter with your address. They can usually tell you the applicable setbacks over the phone.
4. Your landscaper: An experienced landscaping contractor working in your borough will know the standard setback requirements and can flag potential issues early in the design process.

---

Tree Removal and Protection Regulations

Tree regulations in Montreal are strict and getting stricter as the city prioritizes its urban canopy. Violating tree bylaws can result in significant fines.

When You Need a Tree Removal Permit

In Montreal, you generally need a permit to fell any tree with a trunk diameter exceeding 8 centimetres (measured at 1.5 metres above ground level) or 10 centimetres (measured at 15 centimetres from the ground). Specific thresholds may vary by borough, so always confirm with your local permit counter.

The Permit Process for Tree Removal

1. Application: Submit a request to your borough, including the reason for removal (dead, diseased, safety hazard, construction interference).
2. Inspection: The borough may send an inspector to assess the tree and determine if removal is justified.
3. Decision: The borough approves or denies the request. Approvals often come with conditions.
4. Replacement requirement: Most boroughs require you to plant one or more replacement trees of specified species and caliper. The replacement obligation may be higher than 1:1 for large or significant trees.
5. Financial compensation: If replacement planting is not possible on your lot (insufficient space), you may be required to pay a financial contribution to the borough's tree planting fund. This can range from several hundred to several thousand dollars per tree.

Tree Protection During Construction

Even if you are not removing trees, construction near existing trees requires protection measures:

• Root zone protection: No excavation, grading, or material storage within the drip line of retained trees.
• Trunk protection: Fencing or barriers to prevent equipment contact with trunk bark.
• Grade changes: Adding or removing soil within the root zone can damage or kill a tree.

Your landscaper should include tree protection in the project plan. Damaging a protected tree during construction can result in fines equal to the tree's assessed value, which can be substantial for mature specimens.

---

Retaining Wall Regulations

Retaining walls are among the most regulated landscaping elements in Quebec due to their structural nature and potential safety implications.

Height Thresholds

• Under 1 metre (approximately 3.3 feet): Generally does not require a permit in most boroughs, but must still comply with setback requirements.
• 1 to 1.2 metres (3.3 to 4 feet): Permit typically required. Borough may require basic structural documentation.
• Over 1.2 metres (4 feet): Permit required. Engineered plans stamped by a professional engineer are generally required in Quebec for walls of this height. The engineer designs the wall, specifies materials and reinforcement, and may inspect construction.

Engineering Requirements

For retaining walls requiring engineering, expect the following additional costs and timelines:

• Engineering design fees: $1,500 -- $4,000 depending on wall complexity and length
• Engineering timeline: 2-4 weeks for design and stamped plans
• Construction inspection: The engineer may require one or more site visits during construction
• Geotechnical report: For significant walls on challenging soil, a geotechnical investigation may be recommended ($2,000-$5,000)

Drainage Requirements

All retaining walls must include proper drainage behind the wall to prevent hydrostatic pressure buildup. Standard drainage provisions include:

• Geotextile fabric wrapping the drainage aggregate
• Clear crushed stone behind the wall (minimum 300mm width)
• Perforated drainage pipe at the base, graded to daylight or a storm drain
• Weep holes through the wall face (for poured concrete walls)

A retaining wall without adequate drainage will eventually fail regardless of how well it is built. This is a non-negotiable element of any retaining wall installation.

---

Fence and Privacy Screen Rules

Fence regulations vary significantly across Montreal boroughs but generally follow these patterns:

Typical Height Limits

Material Restrictions

• Many boroughs prohibit chain-link fences in the front yard.
• Some heritage districts restrict fence materials and colours to maintain neighbourhood character.
• Live hedges (cedar, privet) are generally permitted as an alternative to fences and may have different height allowances.

Shared Fences

Under the Civil Code of Quebec, a fence on the property line is presumed to be shared between neighbours. Either party can require the other to contribute to the cost of building or maintaining a shared boundary fence. This rule applies even if only one party wants the fence. Discussing fence plans with your neighbours before starting avoids disputes.

---

Pool and Hot Tub Permits

Pool installation requires permits in virtually every municipality in Greater Montreal. Regulations are strict due to safety concerns.

Key Requirements

• Building permit: Required for both in-ground and above-ground pools.
• Fencing/enclosure: Quebec law requires all pools to be enclosed by a barrier at least 1.2 metres high with a self-closing, self-latching gate. This includes above-ground pools.
• Electrical permit: Required for pool pumps, heaters, and lighting. Must be done by a licensed electrician with an inspection by the Corporation des maitres electriciens du Quebec.
• Setbacks: Pools typically must be at least 1.5-3 metres from property lines and often cannot be located in the front yard.
• Drainage: Pool drainage (backwash water) cannot be directed onto neighbouring properties or into the municipal storm sewer without authorization.

---

Permit Application Process

What You Typically Need to Submit

1. Application form: Available at your borough office or online.
2. Certificate of location: A survey showing your property boundaries and existing structures.
3. Site plan: A scaled drawing showing the proposed work, dimensions, setbacks, and location relative to property lines and existing structures.
4. Detailed project description: Materials, dimensions, heights, and construction methods.
5. Engineered plans (if applicable): For retaining walls over 4 feet, pools, or complex structures.
6. Photos: Current conditions and neighbouring context.
7. Contractor information: License numbers, insurance certificates.
8. Application fee: Payable at time of submission.

Step-by-Step Process

1. Research: Verify your borough's requirements and obtain any necessary documents (certificate of location, site plan).
2. Submit application: In person at the borough permit counter or online (where available).
3. Review period: The borough reviews your application for compliance with zoning, setbacks, greening requirements, and building standards.
4. Revision requests: The borough may request modifications to your plan to ensure compliance.
5. Approval: Once approved, you receive a permit or certificate of authorization. Display it visibly during construction.
6. Construction: Complete the work according to the approved plans.
7. Inspection: Some boroughs inspect completed work before issuing final approval.

---

Fees and Timelines

Typical Permit Fees in Montreal

Fees vary significantly by borough. Some charge a flat fee; others charge a percentage of estimated project value.

Processing Timelines

These timelines can extend significantly during peak season (April-June) when permit offices are flooded with applications. Submitting your application in winter gives you a better chance of having your permit in hand when construction season begins.

---

How Your Landscaper Can Help

An experienced Montreal landscaper handles permit navigation as part of their service. Here is what a professional landscape design-build company typically provides:

• Regulation knowledge: Familiarity with your borough's specific requirements, setbacks, and greening ratios.
• Site plan preparation: Scaled drawings suitable for permit submission.
• Application submission: Filing the application on your behalf and managing communication with the borough.
• Design compliance: Ensuring the landscape design meets all applicable regulations from the start, avoiding revision requests.
• Engineering coordination: Connecting you with structural engineers when retaining walls or other elements require engineered plans.
• Inspection coordination: Being present for municipal inspections and addressing any concerns.

This is one of the most valuable services a professional landscaper provides. Navigating permit requirements on your own can be time-consuming and confusing, especially when regulations differ between boroughs. A landscaper who works regularly in your area has established relationships with permit offices and understands the process thoroughly.

---

FAQ -- Landscaping Permits in Montreal

Do I need a permit to build a patio in my backyard in Montreal?

In most Montreal boroughs, a simple paver patio in your backyard does not require a building permit. However, your project must still comply with setback requirements and permeable surface ratios set by your borough. If the patio includes retaining walls over one metre, modifies your driveway entrance, or is in the front yard, a permit is likely required. Always verify with your borough's permit counter before starting.

How long does it take to get a landscaping permit in Montreal?

Processing times vary by borough and project complexity. Simple permits (fences, small structures) typically take 2 to 4 weeks. Standard landscaping permits take 3 to 6 weeks. Complex projects requiring engineering review or heritage committee approval can take 6 to 12 weeks. Submit applications well before your planned construction start date, ideally during the winter months.

Can my landscaper handle the permit application for me?

Yes. Most professional landscaping companies in Montreal routinely handle permit applications as part of their service. They prepare the required site plans, submit the application, and manage communication with the borough. This is one of the key advantages of hiring an experienced professional who is familiar with your borough's regulations and process.

What happens if I build without a permit in Montreal?

Building without a required permit can result in fines ranging from several hundred to several thousand dollars, stop-work orders that halt construction, and in serious cases, orders to remove completed work at your own expense. Unpermitted work can also create problems when selling your property, as buyers may demand proof of compliance before closing.

Do I need a permit to remove a tree on my property in Montreal?

In Montreal, you generally need a permit to fell any tree with a trunk diameter exceeding 8 centimetres (measured at 1.5 metres above ground level) or 10 centimetres (measured at 15 centimetres from the ground). The borough will assess whether removal is justified and typically requires replacement planting. Removing a tree without a permit can result in significant fines based on the assessed value of the tree.

---

Navigate the Process with Confidence

Permit requirements should not discourage you from pursuing your landscaping project. They exist to protect property values, neighbourhood character, and the environment. Understanding the rules before you start simply means your project proceeds smoothly without surprises.

At Montreal Paysagement Pro, we handle permit research, application preparation, and coordination with borough offices as a standard part of our service. We know the regulations across Greater Montreal, Laval, and the South Shore, and we design every project for compliance from the start.

Have questions about permits for your project? Call us at 514-900-3867 for a free consultation. We will help you understand exactly what is needed before work begins.