Key Takeaways
- Under the Ontario Building Code, either the homeowner or the contractor can be the named applicant on a permit, acting as an authorized agent of the owner. Every municipality we've checked (Toronto, Guelph, Waterloo) defines it exactly that way.
- Whoever's name is on the application, the property owner is the one who answers for the work. Toronto's own building department says it outright on its "Working Without a Permit" page: "you are responsible for paying these fees or penalties yourself even if you have hired a contractor who assured you that permits were not needed."
- A permit skipped now doesn't disappear, it resurfaces at the worst possible time, an insurance claim, a home inspection before a sale, or a stop-work order once an inspector notices open framing with no paper trail.
Who's actually allowed to apply for the permit?
Either of you, and the Ontario Building Code doesn't treat one as more legitimate than the other. Every municipal application we looked at, including Toronto's and the ones covering Guelph and Waterloo, defines the applicant as "the owner, or an authorized agent of the owner." A contractor filing on your behalf is that authorized agent. So is an architect, a designer, or a permit expediter. None of them are applying in their own right, they're applying as a stand-in for you, and most municipalities want that authorization in writing before they'll accept the paperwork.
In practice, on a renovation, having the contractor apply is usually the more useful arrangement, not because it changes who's accountable, but because the contractor is the one holding the drawings, the trade schedule, and the answers to the reviewer's questions. That's the model we run here: we prepare the drawings, submit the application, and book every inspection, so you're never the one on hold with a municipal building department chasing a status update. It's part of what design-and-build in-house actually buys you, one person managing the file from measure to final sign-off instead of the permit sitting in a gap between three different trades.
What that arrangement doesn't do is make the permit "the contractor's problem" in any legal sense. The applicant field on the form is an administrative detail about who submitted the paperwork. It is not a transfer of responsibility for the building itself.
If the contractor's name is on the permit, are you still liable?
Yes, and this is the part that surprises people. The City of Toronto's building department addresses it directly on its own site, in the section on working without a permit: as the homeowner, "you are responsible for paying these fees or penalties yourself even if you have hired a contractor who assured you that permits were not needed." That's not a fringe case. It's the default the city describes for exactly the situation you're worried about, a contractor who skips a required permit, with or without telling you.
The reasoning holds together once you see who the Building Code Act is actually built around. It regulates the property, and the property has one owner. A contractor is a temporary presence on that property, there for weeks or months on one job; you're the one who owns the building before the crew shows up and after they leave. Municipal legal guidance on the Act frames it the same way: courts do scale a penalty to conduct, and a homeowner who stops work and legalizes promptly is treated very differently from a contractor who ignores a stop-work order, but the underlying exposure, the fees, the stop-work order, the requirement to open up finished work for inspection, attaches to the property and its owner first.
That's also why we tell people to ask this question of any contractor they're evaluating, not just us. Our guide to choosing a renovation contractor in Ontario puts it plainly: ask who's actually pulling the permit, and get that answer in writing before the deposit changes hands, not after. A contractor who waves off the question with "don't worry about it, I'll handle the permits" is telling you something about how the whole project is going to run.
What actually happens when a required permit gets skipped?
A few things, usually in this order:
Work stops. Once a municipality identifies unpermitted work, in progress or already finished, the standard response is to halt further construction until the permit situation is resolved. Toronto's page on this is explicit that "all work must stop during this time," and the normal review timelines and fees still apply on top of that delay.
A surcharge lands on top of the normal permit fee. In Toronto specifically, that's a "work without permit" administrative fee equal to 50 percent of the permit fees for the project, separate from and in addition to the fee you'd have paid applying up front. Other municipalities structure it differently, but the pattern, a real financial penalty layered on top of the fee you were trying to avoid, is common across Ontario.
Finished work may need to come apart. If drywall, flooring, or a ceiling already closed up the area an inspector needs to see, in practice that means opening it back up for a retroactive inspection. That's the single most expensive way to get a permit: paying to build something, then paying again to expose it, then paying a third time to close it back up once it passes.
Fines are on the table, and they aren't small. Under the Building Code Act, 1992, an individual convicted of an offence like building without a required permit can face a fine of up to $50,000 for a first offence and up to $100,000 for a subsequent one; corporations face up to $500,000 and $1,500,000 respectively. Municipal building departments (the Town of Deseronto's own building FAQ lays this out clearly) note that courts set the actual penalty based on the specifics of the case, so a homeowner who cooperates and corrects the problem quickly is not going to be treated the same as a contractor who ignored a direct order. But the ceiling is real, and it exists precisely to make "just don't bother with the permit" the wrong call on paper as well as in practice.
It can complicate an insurance claim or a sale, long after the work is done. This is the part that has nothing to do with getting caught by an inspector during construction, and everything to do with what surfaces later.
Does the type of project change any of this?
The permit rules and the fee structure vary a lot by city and by scope, but the ownership of the risk doesn't move. A few examples across the kind of work we do:
A basement renovation in Toronto that includes a legal secondary suite needs its own residential-unit permit fee on top of the interior-alteration fee, and Toronto's House Stream targets a 10-business-day first review. Skip that permit because the suite "is just a basement apartment like the last owner had," and you inherit not just the fine exposure but the harder problem of a rental unit that was never legally created, which shows up the moment a tenant, an inspector, or an insurer asks for the paperwork.
A kitchen renovation in Guelph that moves a wall or reroutes plumbing needs a building permit through the city's own fee schedule, and separately, any new electrical circuit for an island or a range hood needs its own notification to the Electrical Safety Authority. Two different permits, two different bodies, and skipping either one puts the same liability question back on the homeowner, since the ESA notification isn't something a building permit automatically covers.
A concrete driveway in Waterloo is a good example of how invisible this risk can be. Waterloo runs curb cutting entirely through its own crew, a contractor legally can't do that part of the job, so the permit step there is not optional paperwork sitting on top of the work, it's the only way the work can physically start. A driveway widening done without going through the city isn't a grey area on a technicality; it's work that couldn't have proceeded through the correct channel at all.
Different cities, different fee schedules, different review windows. Same answer to who's exposed if the permit step gets skipped.
| Scenario | Who's named as applicant | Who bears the liability exposure |
|---|---|---|
| Homeowner applies directly | Homeowner | Homeowner |
| Contractor applies as authorized agent | Contractor | Homeowner (as property owner) |
| Contractor does the work, tells homeowner no permit is needed, skips it | No one | Homeowner, per Toronto's own guidance above |
| Permit pulled, but scope expands beyond what was applied for | Whoever originally applied | Homeowner, once the gap between drawings and built conditions surfaces at inspection |
What protects you, and what belongs in writing before applying?
Since the applicant field doesn't change your exposure, the protection has to come from somewhere else, mainly your contract and your contractor's own licensing and insurance. Get, in writing, before the deposit:
- Who is applying for the permit, by name, and confirmation that the application is actually submitted before work starts, not "in progress" once the crew is already on site.
- What the permit covers, matched against the actual scope, so a mid-project change (a moved wall, a new window, an added bathroom) triggers a revision instead of quietly falling outside what was approved.
- Who's booking inspections, and at what points in the schedule, since a missed rough-in inspection is the single most common reason finished work later has to come apart.
- Proof of the contractor's licensing and insurance, which is a separate question from the permit but travels with it, since a contractor cutting corners on one tends to cut them on the other. Our piece on what "licensed and insured" actually means covers what to actually ask for, not just the phrase on a business card.
All of that belongs in the written contract itself, not a verbal assurance. If you haven't gone through a renovation contract line by line before, how to actually read one before you sign walks through where permit responsibility, change orders, and inspection scheduling should each show up on paper.
Frequently asked questions
Can my contractor apply for the permit without my name appearing anywhere?
No, not properly. A contractor applying as your authorized agent still needs written authorization from you as the owner, and most municipal applications require the owner's information on the form regardless of who signs as the applicant. If a contractor is offering to pull a permit without any owner authorization on file, that's not a shortcut, it's a sign the permit either isn't being pulled at all or is being filed against the wrong property information.
If I sell the house later, does unpermitted work actually come up?
Often, yes. Ontario sellers have a legal obligation to disclose known material latent defects, and undisclosed unpermitted structural or electrical work that isn't visible on an ordinary inspection can qualify as exactly that. Buyers' lawyers and home inspectors also routinely check permit records against what's visible in the house, so a mismatch, finished basement, no permit on file, tends to surface during the same due-diligence window that closes the sale. Legalizing before listing is almost always cheaper than negotiating a price reduction once a buyer's lawyer finds the gap.
Will my home insurance actually check for a permit before paying a claim?
Not as a routine step at every renewal, but adjusters do look for it when investigating a claim, especially one connected to the area that was renovated, a fire near new wiring, water damage near a moved plumbing line. If the unpermitted work contributed to the damage, that's the scenario where a claim gets delayed, reduced, or denied. It's also why "we'll deal with the permit if it ever comes up" is a bet against exactly the moment you'd most need the insurance to pay out.
Bottom line
Either you or your contractor can be the one who physically submits the permit application, the Building Code doesn't prefer one over the other. What it doesn't do is let that choice determine who answers for the building afterward. That's the property owner, almost always, regardless of whose signature is on the form or what a contractor promised verbally on site. The fix isn't insisting on applying yourself, it's getting the permit process, who's applying, what it covers, and who's booking inspections, written into the contract before anyone breaks ground, and treating a contractor who resists putting that in writing as the red flag it actually is.