Building Permit Held at Urban Forestry? How Tree Clearance Works

When Toronto’s building department flags your permit application with a condition assigned to Urban Forestry, the project cannot proceed until that department signs off. This is a forestry clearance condition, and it is resolved through a specific sequence: you submit an arborist report with a tree protection plan, Urban Forestry reviews it, and if the submission meets their requirements, they issue written clearance that releases the permit hold.

Why Urban Forestry Gets Involved in Building Permits

Toronto’s Chapter 813 private tree bylaw protects any tree on private property with a trunk diameter of 30 cm or more at breast height (1.4 metres above ground). That threshold is lower than most homeowners expect. A single mature tree in the construction zone is enough to trigger the requirement.

When your site plan, demolition permit, or building permit application lands at the city and there is a protected tree within the regulated setback of the proposed work, the permit is flagged and forwarded to Urban Forestry for review. The building department will not release the permit until Urban Forestry has reviewed the submission and confirmed that tree protection measures are in place.

Properties in ravine or natural feature areas face an additional layer under Chapter 658 (the Ravine and Natural Feature Protection bylaw), where trees of any size trigger the same clearance process. If both bylaws apply to your site, you may need separate approvals under each.

The Document Urban Forestry Is Actually Waiting For

The clearance requirement is tied to a specific deliverable: a construction arborist report. This is not the same as a tree removal report. A construction arborist report documents every protected tree on or adjacent to your site, assesses the impact of the proposed construction on each tree’s root zone and canopy, and specifies how each tree will be protected throughout the build.

The report must be prepared by an ISA Certified Arborist. It is submitted to Urban Forestry alongside a tree protection plan, which is a separate formal drawing that maps fence placement, protection zones, staging areas, and access routes to scale. The plan is what contractors and city inspectors reference on site.

If your project also involves removing a protected tree, you will need a removal permit under Chapter 813 in addition to the construction report. The two documents support different permit types. For help understanding which you need, see which arborist report is right for your project.

The Review Sequence

Once you submit the report and plan package to Urban Forestry, the process follows a consistent sequence:

1. Intake and assignment. Urban Forestry assigns a staff reviewer to the file. For standard building permit holds, the submission goes through the city’s FEPS online portal. The reviewer checks that all required components are present before beginning the technical review.

2. Technical review. The reviewer assesses the report against the site plan, tree inventory, and proposed construction. They are looking at whether the protection zones are drawn correctly, whether the fencing specifications are adequate, and whether the arborist’s impact assessment addresses all relevant trees, including trees on adjacent properties whose root zones extend into the work area.

3. Conditions or clearance. If the submission is acceptable, Urban Forestry issues a written clearance confirming that the forestry condition has been met. The clearance is forwarded to the building department, which then releases the permit. If the submission has deficiencies, Urban Forestry sends back a revision request.

4. Permit release. Once clearance is issued, the building permit is released and construction can proceed, subject to the tree protection conditions specified in the approved report.

The Revision Loop and How to Avoid It

The revision loop is the part of this process that kills timelines. A reviewer sends back a request for additional information or corrections, the applicant revises and resubmits, and the file goes back into the review queue. Depending on submission volume, each cycle can add weeks to the process.

Common triggers for revision requests include:

• Protection zones drawn from an incorrect measurement. The tree protection zone radius is calculated from the trunk diameter, and an error in the field measurement produces an incorrectly sized zone on the plan.
• Adjacent property trees not addressed. If a neighbouring tree’s root zone extends into the excavation area, the report needs to document and address it, even if the tree is not on your property.
• The tree protection plan does not match the building permit drawings. Reviewers compare the two documents side by side. A discrepancy in the building footprint, setback, or driveway location between the arborist plan and the permit drawings will generate a revision request.
• The construction impact assessment is generic. Urban Forestry reviewers notice boilerplate language. The assessment needs to address the specific conditions on your site, including soil type, root zone encroachment distance, and proposed excavation method.
• Missing spec addendums. The plan must include installation details for the fencing, horizontal root protection, and required signage. Submitting a drawing without the spec sheets is a common shortcut that generates a follow-up.

The practical way to avoid the revision loop is to submit a complete package the first time. That means sharing your full building permit drawings with the arborist before the site visit so the tree protection plan is drawn to the same geometry as the permit drawings, and confirming with the arborist that adjacent property trees have been included in the inventory.

Realistic Timeline

Toronto does not publish a standard processing window for construction arborist review in its current application guidance. Timing depends on the application type, submission queue, project complexity, and whether Urban Forestry requests revisions. Plan for municipal review without promising a fixed approval date.

Peak building season (spring and early summer) tends to slow review times. If your project is time-sensitive, submitting in late fall or winter often produces faster turnaround.

What the Clearance Letter Actually Says

The clearance is not a separate formal permit document. It is typically a written confirmation from Urban Forestry staff noting that the forestry conditions on a specific building permit file have been satisfied, referencing the approved report and plan. The building department uses this confirmation to release the permit.

In some cases, the clearance comes with continuing conditions: the approved tree protection fencing must be installed and inspected by an arborist before excavation begins, and periodic monitoring visits may be required through different phases of the build. These conditions appear in the approved report, not the clearance letter itself, but they are binding for the duration of construction.

Failure to maintain tree protection as specified in the approved report can result in a stop-work order. Damage to a protected tree during construction carries its own liability under Chapter 813, separate from the building permit process.

Getting the Report Right the First Time

The construction arborist report is the single document driving the entire clearance process. A report prepared to Toronto Urban Forestry’s current standards, with a tree protection plan that matches your building permit drawings, is the most direct path through this process.

Our team prepares construction arborist reports specifically for Toronto and GTA building permit applications. Site visits happen within 48 hours and reports are delivered within two business days, giving you a complete submission package with minimal lead time. Contact us with your site address and permit file number and we can confirm the scope before the visit.