Short answer: Once the City of Toronto accepts your application as complete, Ontario’s Building Code requires a decision within 10 business days for a house, 15 for a small building, 20 for a large building, and 30 for a complex one. In practice, most homeowners wait 6 to 12 weeks from submission to permit in hand, and 4 to 9 months from the start of design on a new custom home.
The gap between those two numbers is the whole story, and it comes down to one word: complete. The statutory clock does not start when you upload your drawings. It starts when the City agrees nothing is missing.
This guide covers the legal review periods, Toronto’s four permit streams, how long each project type actually takes, what a permit costs in 2026, what delays applications, and how to move faster.
Building Permit Timelines in Toronto at a Glance
If you only read one thing, read this table. These are realistic end-to-end ranges from complete submission to permit in hand, assuming your project is zoning-compliant.
| Project type | Review stream | Realistic timeline |
|---|---|---|
| Deck, shed, detached garage, carport | Express Services | 1–3 weeks |
| Interior alteration (1–2 unit house) | Express Services | 2–4 weeks |
| Basement finishing with structural work | Express or House Stream | 3–6 weeks |
| Kitchen or bathroom renovation (structural) | House Stream | 3–6 weeks |
| Rear or side home addition | House Stream | 6–12 weeks |
| Second-storey addition | House Stream | 8–14 weeks |
| Garden suite or laneway suite | House Stream | 8–16 weeks |
| New detached custom home | House Stream | 12–20 weeks from submission |
| Fourplex or multiplex conversion | House or Small Building Stream | 12–24 weeks |
| Any project needing a minor variance | Committee of Adjustment first | Add 3–4 months |
What Is a Building Permit and Why You Need One
A building permit is formal authorization from Toronto Building, part of the City’s Planning Division, confirming that your proposed work complies with the Ontario Building Code, the City’s zoning by-law, and all other applicable law.
It is not a formality. The permit triggers the inspection schedule that verifies your structure is safe, and it is the document that protects you later — with your insurer, with the City, and with a future buyer’s lawyer. Unpermitted work is one of the most common reasons a residential sale stalls at the conditions stage, and one of the most common reasons an insurance claim is contested.
Do You Actually Need a Permit? Toronto Thresholds
| Type of work | Permit required? | Threshold that decides it |
|---|---|---|
| New custom home | Yes | Always |
| Addition (rear, side, second storey, bump-out) | Yes | Any increase in floor area |
| Garden suite or laneway suite | Yes | Always |
| Structural interior alteration | Yes | Removing or altering load-bearing elements |
| Kitchen or bathroom renovation | Depends | Finishes only, no. Moving walls, plumbing or electrical layouts, yes |
| Basement finishing | Usually | Required if structural work, or heating or plumbing systems are installed or modified |
| Deck | Depends | Required if attached to the house, or more than 60 cm (24 in) above grade at any point |
| Shed | Depends | Exempt if under 15 m², one storey, detached, storage-only, and no plumbing. Cross any one of those and a permit is required |
| Detached garage | Yes | Accessory structures over 10 m²; also required at any size if attached or plumbed |
| Retaining wall | Depends | Required over 1 m in height where adjacent to public property or publicly accessible areas |
| Sump pump | No | Exempt |
| Painting, flooring, cabinetry, cosmetic work | No | Exempt |
The trap people fall into: “no building permit required” does not mean “no rules.” Zoning by-laws apply to every structure, permit or not. Setbacks, lot coverage and height limits still apply to an exempt shed, and a zoning officer can order a non-compliant one moved or removed.
The Statutory Review Clock: What the Building Code Actually Requires
Ontario’s Building Code sets a legal deadline for how long a municipality can take to review a complete permit application. The City must issue the permit or refuse it with written reasons inside that window.
| Building class | Complete application | Incomplete application |
|---|---|---|
| Houses (up to 2 units), tents, small projects | 10 business days | 20 business days |
| Small buildings other than houses (Part 9) | 15 business days | 30 business days |
| Large buildings (Part 3) | 20 business days | 40 business days |
| Complex buildings | 30 business days | 60 business days |
| Interior alterations, non-housing | 10 business days | 20 business days |
| Demolition permits | 10 business days | 20 business days |
| Plumbing — housing | 10 business days | 15 business days |
| Plumbing — other than housing | 15 business days | 20 business days |
Three things homeowners consistently misread about this table:
It is a review deadline, not an approval promise. The City must decide within the window. A refusal with written reasons on day 10 satisfies the requirement completely.
The clock only starts on a complete application. In Toronto, an application with no Zoning Applicable Law Certificate is considered incomplete, and there is no prescribed time frame for reviewing an incomplete application. It sits until you fix it.
Every resubmission restarts a review cycle. If the examiner returns comments and you revise, you re-enter the queue. Two or three rounds is normal, and that is where 10 business days becomes 10 weeks.
Toronto’s Four Permit Review Streams
Toronto Building sorts applications into streams, and which one you land in largely determines your wait.
Express Services — 3 business day review target
This is the fastest route, and it replaced the older Residential FASTRACK, Commercial Xpress and Sign Bylaw Unit services. Toronto Building’s goal is to review eligible applications within 3 business days after intake.
Typically eligible: interior alterations to houses with one or two dwelling units, decks, porches, detached garages, carports, sheds and ancillary structures, basement walkouts and underpinning, and certain small commercial fit-outs.
Watch out: additions to residential dwellings, laneway suites and garden suites are excluded from Express Services. So are properties requiring heritage approval, and revisions to permits covering work outside the Express scope. If your project needs a minor variance, you apply for a Zoning Applicable Law Certificate instead of using this stream.
One procedural detail that catches applicants out: if the examiner requests payment of the application fee and it is not paid by the stated due date, the application is cancelled and you must start a new one. Monitor the email on the application.
House Stream — 10 business days
Detached, semi-detached or row houses containing not more than two dwelling units. Critically, this stream also covers ancillary buildings including garden suites and laneway suites. If you are building a backyard suite, this is your stream — not Express.
Small Building Stream — 15 business days
Part 9 buildings that are not houses.
Large / Complex Building Stream — 20 to 30 business days
Part 3 buildings: multi-unit residential, commercial, institutional.
What Makes an Application “Complete”
Because completeness is what starts the clock, it is worth being precise about it. A complete Toronto application generally includes:
- Completed application form and applicable schedules
- A Zoning Applicable Law Certificate confirming applicable law has been satisfied — an application without one is considered incomplete
- All drawings and specifications listed in the Application Guide for your project type, at permit grade
- A current survey or site plan showing property lines, setbacks and grading
- Structural details and engineering where the scope requires them
- Mechanical, plumbing and HVAC drawings where applicable
- An arborist report and tree preservation plan where protected trees are affected
- All required fees paid at application
Missing any one of these does not slow the clock down. It means the clock never starts.
The Full Timeline, Stage by Stage
The review clock is one segment of a longer sequence. Here is the realistic picture for a Toronto project.
| Stage | What happens | Typical duration |
|---|---|---|
| Feasibility & zoning check | Confirm setbacks, height, lot coverage, FSI against By-law 569-2013 before anyone draws anything | 1–2 weeks |
| Architectural drawings | Design development to permit-ready standard | 3–8 weeks |
| Engineering & consultant coordination | Structural, mechanical, grading, arborist report where trees are affected | 2–4 weeks (overlaps design) |
| Zoning Applicable Law Certificate | Required before the application counts as complete | 2–4 weeks |
| Submission & intake | City validates completeness | 3–10 business days |
| First technical review | House Stream target: 10 business days | 2–4 weeks realistically |
| Comment response & resubmission | Most first submissions get examiner comments | 2–6 weeks per cycle |
| Permit issuance | Fees paid, permit released | 3–5 business days |
Worked Example: A Toronto Custom Home
Here is how the sequence typically runs on a new detached home with no variance required.
| Step | Action | Responsible party | Duration |
|---|---|---|---|
| Pre-design consultation | Budget, concept, lot feasibility | Homeowner + builder | 1–2 weeks |
| Zoning review | Setbacks, height, coverage, FSI confirmed | Builder + designer | 1–2 weeks |
| Architectural drawings | Design development to permit grade | Architect / designer | 4–8 weeks |
| Permit package assembly | Engineering, survey, grading, code compliance | Builder + engineer | 2–4 weeks |
| Zoning Applicable Law Certificate | Applicable law confirmation | Builder | 2–4 weeks |
| Submission and intake | Completeness validation | City | 1–2 weeks |
| Technical review | Structural, zoning, grading examination | City staff | 2–4 weeks |
| Comment response | Revisions and resubmission | Builder + consultants | 2–6 weeks |
| Permit issued | Fees paid, permit released | City | 1 week |
| Total | — | — | 16–33 weeks |
That is roughly four to eight months from first consultation to permit in hand, assuming no variance and no major resubmission cycles.
Trade Permits: Electrical, HVAC and Plumbing
Your building permit is not the only approval, and the trade permits run on their own clocks.
Electrical. Electrical work is regulated by the Electrical Safety Authority, not the City. You file a notification of work with ESA and pay ESA directly. This is separate from and parallel to the building permit, and it is mandatory even on projects where no building permit is required — a hard-wired circuit to a shed, for example. ESA notification is generally fast; the inspection scheduling is what takes time.
Plumbing. Plumbing permits fall under Toronto Building and carry a 10 business day review period for housing on a complete application, 15 for non-housing.
HVAC and mechanical. Toronto handles stand-alone mechanical work as its own permit category. On most renovation and new-build projects, mechanical drawings are submitted as part of the main application rather than separately.
Gas. Any work touching a gas appliance or gas line brings in TSSA, again separate from the building permit.
The practical consequence: trade permits rarely extend your timeline if they are coordinated in parallel. They regularly extend it when they are remembered after the building permit is issued.
The Committee of Adjustment: The Biggest Single Delay
If your design exceeds any zoning limit under By-law 569-2013 — setback, height, lot coverage, floor space index, building length — you cannot get a permit for the non-compliant portion until the Committee of Adjustment grants a minor variance.
| Step | Duration |
|---|---|
| Application preparation and drawings | 2–4 weeks |
| Wait for hearing date | 6–12 weeks |
| Decision | Same day, in most cases |
| Appeal period | 20 days |
| Revise drawings and resubmit for permit | 2–4 weeks |
Plan for 3 to 4 months. A Committee of Adjustment application in Toronto runs roughly $2,500 for a standard residential minor variance in 2026.
This is why we run a zoning check before design begins rather than after. A design that misses a setback by four inches is not a small problem — it is a three-month problem, and it is entirely avoidable at the sketch stage.
Factors That Affect Your Permit Timeline
Two identical houses on two Toronto lots can have permit timelines three months apart. Here is what drives the difference.
1. Project complexity. A single-storey interior alteration moves through Express Services in days. A three-storey custom home with a walkout basement and a shared party wall pulls in structural, grading, and sometimes inter-departmental review.
2. Documentation quality. This is the largest controllable factor. Concept-grade drawings, unlabelled dimensions, inconsistent measurements between the survey and the site plan, and missing sections all generate examiner comments, and each comment cycle adds weeks.
3. Zoning compliance. Full compliance means a straight path. Any non-compliance means the Committee of Adjustment and a three-to-four-month detour.
4. Time of year and application volume. Spring and early summer bring the heaviest permit volume in Toronto as homeowners push to start before winter. A complete application submitted in late fall or winter often clears faster simply because the queue is shorter.
5. Heritage and environmental constraints. Heritage-designated properties and heritage conservation districts are excluded from Express Services and require additional departmental review. TRCA-regulated areas add a separate conservation authority approval. Protected trees add an arborist report and a tree permit.
6. Site conditions. Grading, drainage, servicing connections, and shared or narrow lot access all add review scope.
7. Experience of your builder or designer. Teams that submit into Toronto regularly know what each examiner looks for, what the Application Guide requires for a given project type, and how to structure a submission that clears intake the first time.
Common Mistakes That Delay Toronto Permits
In our experience, permit delays almost never come from the City being slow. They come from the submission.
- No Zoning Applicable Law Certificate. The application is incomplete without it, and incomplete applications have no prescribed review time frame.
- Sketch-level drawings. Concept drawings instead of fully dimensioned permit-grade plans.
- Submitting too early. Filing before grading, structural or mechanical drawings are finalized guarantees a revision request. There is no advantage to holding a place in line with an incomplete file.
- Undetected zoning conflicts. Setback, height, coverage or FSI issues found at review stage instead of design stage. This converts a 10-day review into a 4-month variance process.
- Ignoring heritage or conservation overlays. Heritage properties in Toronto and TRCA-regulated lots pull in review layers most homeowners do not anticipate.
- Slow response to examiner comments. Every day you spend responding is a day added, and each resubmission re-enters the queue.
- Forgetting trade and outside approvals. ESA, TSSA, tree permits and conservation authority sign-offs discovered late.
How to Speed Up Your Building Permit Approval
You cannot make the City review faster. You can control almost everything else.
- Check zoning before you design. The single highest-leverage step. Confirm setbacks, height, lot coverage and FSI against By-law 569-2013 at the sketch stage.
- Get the Zoning Applicable Law Certificate early. Without it the application is incomplete, and nothing else matters.
- Submit one complete package, not a partial one. A complete application starts the statutory clock. A partial one starts nothing.
- Check Express Services eligibility. If your project qualifies, you go from a 10 business day target to a 3 business day target. Confirm before you submit into the wrong stream.
- Run consultants in parallel. Structural, mechanical, grading and arborist work should run alongside architectural, not after it.
- Respond to examiner comments within days, not weeks. This is the part of the cycle fully within your control.
- Consider a phased or partial permit. On larger projects the City may issue a foundation permit ahead of the full permit, letting site work begin sooner. You still need written approval before any work starts.
- Submit outside peak season where you can. Late fall and winter queues are shorter.
A well-prepared submission genuinely can turn a twelve-week wait into four to six weeks. It does this by avoiding revision cycles, not by moving faster through them.
The Best Time of Year to Apply in Toronto
Permit timing shapes everything downstream: financing draws, trade scheduling, material ordering, and whether you are excavating in frozen ground.
The pattern most Toronto builders work to is this. Applications filed in late fall and winter hit a shorter queue and often clear faster. Permits in hand by March or April let you break ground as soon as the frost is out and get the envelope closed before the following winter. Applications filed in April through June land in the heaviest volume of the year and compete with every other homeowner trying to start that season.
Working backwards from a spring construction start, design should begin the previous summer and the application should be in by early fall.
Toronto Building Permit Fees (2026)
The City increased permit fees by 4.0% effective January 1, 2026. Fees are formula-based and published — there is no quote and no negotiation.
| Work class | 2026 published rate |
|---|---|
| Minimum fee, any permit | $214.79 flat |
| New house (detached, semi, townhouse) | $18.56 per m² |
| New residential unit fee | $56.33 per unit |
| Residential interior alterations | $11.53 per m² |
| Deck, porch or carport | Flat minimum fee |
| Hourly examination / inspection rate | $92.79 per hour |
Add-ons most people forget:
- Zoning Applicable Law Certificate — 25% of the building permit fee
- Building Code Act administration fee — 4.5% of the base permit
- Toronto Construction Surcharge — $3.00 per m²
- Development charges — the number that actually matters on a new unit. Most ADUs, including laneway and garden suites, and developments up to six units currently carry $0 development charges under 2025/2026 exemptions. Confirm before committing; these rules change annually. This matters most on fourplex and multiplex projects.
- Committee of Adjustment — roughly $2,500 for a standard residential minor variance
- Tree protection or removal permits — required for City-owned trees within 6 m of the work area and private trees over 30 cm DBH
- Demolition permit — separate fee if anything is being torn down, including an existing garage
- Security deposit — Toronto holds a percentage of construction value until final inspection passes
- ESA and TSSA fees — billed directly, not through the City
Budget a 10–15% contingency above the base figure. Note that permit fees are generally non-refundable once review labour has been performed, even if the application is refused.
How Long Does a Building Permit Last Once Issued?
A different question, and one we get constantly.
A building permit is not open-ended. Under the Building Code Act, the Chief Building Official may revoke a permit if construction has not commenced within six months of issuance, or if work is substantially suspended for more than one year.
Practically: pull your permit when you are ready to build, not when you finish design. Homeowners who secure a permit and then spend eight months choosing finishes sometimes find themselves reapplying.
How Long Does It Take to Get an Occupancy Permit?
After the permit is issued, you book mandatory inspections at set stages — footings, framing, rough-ins, insulation, and final. The inspector must attend within two working days of your request, and you cannot cover work before it has been inspected.
Once the final inspection passes and any deficiencies are cleared, occupancy is granted. Many projects also qualify for partial occupancy, allowing you to move in while minor items are completed. Budget 2–4 weeks from final inspection request to occupancy on a clean file.
How to Check Your Building Permit Status in Toronto
Applications are submitted and tracked through the City’s online permit portal. You can check the status of an application there, and the City also publishes permit records searchable by address, which is also how you check the permit history on a property you are considering buying.
Two practical notes. Monitor the email address on the application actively, because examiner correspondence goes there and Express Services applications are cancelled if the fee request is not paid by the stated due date. And a status showing “In Review” is not the same as being inside the statutory clock — confirm the application was accepted as complete.
Do Timelines Differ Across Toronto and the GTA?
Within Toronto, applications are handled through district offices covering Toronto and East York, North York, Scarborough, and Etobicoke York. The by-law, the Building Code and the review streams are identical across all four. What differs is workload, so seasonal queue lengths can vary between districts for otherwise identical projects.
Across the wider GTA, the statutory review periods are provincial and therefore the same everywhere — 10 business days for a house on a complete application in Mississauga, Vaughan or Markham just as in Toronto. What varies by municipality is the fee schedule, the local completeness standard, the zoning by-law, and development charge exposure. Toronto carries among the highest building permit fees in the region and applies surcharges most neighbouring municipalities do not, while regional development charges elsewhere in the GTA can exceed Toronto’s.
What Happens If You Build Without a Permit
Toronto Building can issue a stop-work order. Beyond that, the City applies an administrative fee for work done without a permit, and you must apply retroactively — which routinely means opening finished walls so the work can be inspected. Under the Building Code Act, individuals can face significant fines on conviction, with substantially higher maximums for corporations.
The costs people underestimate are the downstream ones: unpermitted work creates problems with home insurance claims, and it is one of the most common reasons a residential sale stalls at the conditions stage.
How Route Homes Approaches Permit Timelines
We are a custom home builder and renovator, not a permit expediting firm. What we control is submission quality, which is what the timeline actually turns on.
We run zoning before design. Setbacks, height, lot coverage and FSI get checked against By-law 569-2013 before drawings begin. This is the step that keeps projects out of the Committee of Adjustment.
We confirm the right stream early. Knowing whether a project is Express-eligible or House Stream changes the schedule you build the whole project around.
We assemble the full package before submitting. A complete application starts the statutory clock. A partial one does not start anything.
We coordinate consultants in parallel. Structural, mechanical, grading and arborist work runs alongside architectural rather than after it. This applies equally to new builds and home additions.
We respond to examiner comments quickly. Response time is the one part of the review cycle fully within our control.
For projects where the permit work itself is the scope — commercial fit-outs, zoning and approvals files, standalone permit drawings — we work alongside iPermit, a permit and approvals practice covering residential and commercial projects across Toronto and the GTA.
The Bottom Line
Ontario gives the City 10 business days to decide on a complete house permit application. Almost nobody experiences 10 business days, and the reason is almost never the City. It is that the application was not complete, the zoning was not confirmed before design, or the drawings generated three rounds of comments.
Budget 6 to 12 weeks for a renovation or addition, 4 to 8 months for a new custom home from first consultation, and add 3 to 4 months if a minor variance is involved. Then do the one thing that compresses all of it: get the zoning and the document package right before you submit.
Planning a build or renovation in Toronto? Book a feasibility call and we’ll review your lot’s zoning before you spend anything on design. It is the cheapest hour in the entire project.
Frequently Asked Questions
How long does it take to get a building permit in Toronto?
For a complete house application, the Ontario Building Code prescribes a 10 business day review. Realistically, most Toronto homeowners wait 6 to 12 weeks from submission to permit, and 4 to 9 months from the start of design on a new custom home.
Does the 10 business day clock start when I submit?
No. It starts when the City accepts your application as complete. In Toronto, an application without a Zoning Applicable Law Certificate is incomplete, and incomplete applications have no prescribed review time frame.
What is the fastest way to get a building permit in Toronto?
The Express Services stream, which targets a 3 business day review. It covers interior alterations, decks, garages, sheds and similar small projects. Additions, laneway suites and garden suites are excluded and go through the House Stream instead.
Is FASTRACK still available?
No. Toronto Building’s Express Services stream replaced Residential FASTRACK, Commercial Xpress and Sign Bylaw Unit services.
Is the permit process faster for small projects?
Yes. Small, fully zoning-compliant projects such as decks, sheds, garages and interior alterations can qualify for Express Services with a 3 business day review target, compared with 10 business days under the House Stream and longer for larger buildings.
How long does a building permit last in Toronto?
A permit can be revoked if construction has not started within six months of issuance, or if work is substantially suspended for more than a year.
How long does zoning approval take?
A Zoning Applicable Law Certificate typically takes 2 to 4 weeks. If your project needs a minor variance through the Committee of Adjustment, plan for 3 to 4 months.
When should I start applying for a permit?
Once architectural drawings are finalized and zoning compliance is confirmed — typically 2 to 4 months before your planned construction start for a renovation or addition, and 6 to 9 months ahead for a new custom home.
How much does a building permit cost in Toronto in 2026?
The minimum fee is $214.79. New house construction is charged at $18.56 per m², and residential interior alterations at $11.53 per m², plus a Zoning Applicable Law Certificate at 25% of the permit fee and other surcharges.
Are permit fees refundable if my application is refused?
Generally no. The City retains fees covering review labour already performed. Some portion may be credited on resubmission depending on the circumstances, but you should not budget on the assumption of a refund.
Do I need a permit to build a deck in Toronto?
Yes if the deck is attached to your house, or if any point of it sits more than 60 cm (24 inches) above grade. Freestanding ground-level decks may be exempt from the building permit but must still comply with zoning setbacks and lot coverage limits.
Do I need a permit for a shed in Toronto?
A detached shed is exempt if it is under 15 m², one storey, used only for storage, not attached to another structure, and has no plumbing. Add permanent wiring, plumbing, heat, or extra size and a permit is required. Zoning setbacks apply either way.
Do I need a permit to renovate my kitchen?
Not for finishes alone — cabinets, flooring, counters. Yes if you move walls or alter plumbing or electrical layouts.
How long does it take to get an electrical permit?
Electrical work is handled by the Electrical Safety Authority rather than the City. You file a notification of work with ESA and pay them directly. It runs in parallel with the building permit and is required even on some projects that need no building permit.
Can I apply for a building permit myself?
Yes. Most homeowners don’t, because a large share of first submissions receive examiner comments, and each round of revisions restarts a review cycle.
What happens if I start construction without a permit?
Toronto Building can issue a stop-work order and apply an administrative fee for work done without a permit. You will need to apply retroactively, which often means opening completed work for inspection.
