A floor plan rendering of one floor of a house by RCSQ.

Pre-Construction Checklist: What to Lock In Before Permits | RCSQ

February 27, 20263 min read

In the world of Toronto construction, there is a common urge to "just get the permit submitted" as quickly as possible. Homeowners often feel that once the permit is in the City’s hands, the project is officially moving. However, submitting for permits with an incomplete plan is one of the fastest ways to lose control of your budget and your timeline.

At RCSQ, we treat the pre-construction phase as the most critical part of the build. Applying for a permit should be the result of a finished plan, not the start of one. Here is what you need to have locked in before you hit "submit."

1. Finalized Floor Plans and Structural Details

Once a permit is issued, any significant change to the building’s footprint, window locations, or structural integrity requires a "Permit Revision." This can trigger new fees and put you back at the bottom of the City’s review pile.

  • The Goal: Ensure your layout works for your lifestyle (or your future tenants) now, so you aren't moving walls later.

2. Major Mechanical and Utility Strategy

How will your suite be heated? Where will the sewer line exit the building? If your permit drawings show a traditional furnace but you later decide to switch to a high-efficiency heat pump, you may run into venting or electrical issues that conflict with your approved plans.

  • The Goal: Coordinate with your builder to ensure the mechanical "guts" of the building are integrated into the architectural drawings from the start.

3. Exterior Material Selections

Toronto’s building code has specific requirements for fire-rating based on how close your suite is to the property line. The materials you choose for your siding—whether it’s metal, wood, or composite—impact these fire-rating requirements.

  • The Goal: Lock in your exterior finishes early so the drawings accurately reflect the fire-safety measures required by the City.

4. Site Logistics and Access Plan

How will the excavator get to the backyard? Where will the bins be placed? While these aren't always part of the permit itself, they impact the cost of the work described in the permit. If you apply for a permit for a design that requires a crane, but you haven't budgeted for that crane or checked for overhead power line interference, you have a major problem.

  • The Goal: Have a clear "Path of Construction" plan that accounts for the physical realities of your Toronto lot.

5. A Realistic Construction Budget and Contingency

A permit is a commitment to build. Before you commit, you should have a construction contract or a highly detailed cost estimate in hand. Knowing the "Total Project Cost"—including the hidden fees we’ve discussed in previous blogs—ensures that you won't be left with a permit for a building you can't afford to finish.

The RCSQ Advantage: Measure Twice, Apply Once

By taking the time to lock in these details during pre-construction, we eliminate the "guesswork" that leads to stress during the build. When we submit for your permit, we aren't just asking for permission to build; we are launching a fully vetted plan.


Ready to Build with Confidence?

Navigating the complexities of laneway and garden suite construction in Toronto requires more than just a set of drawings—it requires a partner who understands the financial and logistical realities of infill building. At RCSQ, we specialize in turning backyard potential into high-quality, functional living spaces without the typical budget surprises.

Whether you are just starting to explore the possibilities or you are ready to get into the details of your specific lot, we are here to help you lead the way.

  • See Our Work: Browse our Projects to see how we’ve transformed Toronto backyards.

  • Get in Touch: Ready for a real conversation about your budget and goals? Contact Us for a site-specific consultation.

Stay Connected: Follow us on Instagram for behind-the-scenes looks at our current builds and expert advice on building in today’s market.

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