How Long Does a Building Permit Take in Ottawa?
⏱️ Quick Answer
A building permit take in Ottawa depends on your project type. The City’s review targets are: 5 business days for small homeowner projects (decks, sheds, garages), 10 business days for houses (detached, semi-detached, row houses), and 20–30 business days for complex residential projects. These are first-review targets — if your application has deficiencies, the total timeline will be longer. The single biggest factor in how quickly your permit is approved is the completeness and accuracy of your drawings.
How long does a building permit take in Ottawa? It is one of the first questions every homeowner asks when planning a renovation, addition, or new build. The answer varies significantly depending on the scope of your project, the quality of your application, and whether the City requests revisions.
At Architectural Drawing, we prepare permit-ready drawing packages designed to pass City of Ottawa review the first time — minimizing delays and getting your project started faster. This guide breaks down the official review timelines by project type and shows you exactly how to avoid the most common causes of delays.
Official City of Ottawa Permit Review Timelines
The City of Ottawa publishes target review times based on the Ontario Building Code’s application streaming categories. These are the targets for the first review of a complete application — meaning all required drawings, forms, and fees have been submitted:
⚠️ Important: These timelines are for complete applications only. If your submission is missing drawings, has calculation errors, or does not demonstrate code compliance, the City will issue a deficiency letter and the clock resets. Responding to deficiencies and resubmitting can add 2–6 additional weeks to your timeline. The Ontario Building Code mandates that municipalities respond within 10 business days for houses and 30 business days for complex buildings.
Realistic Timelines by Project Type
While official review targets tell you how quickly the City aims to complete their first review, the total time from application to permit in hand depends on several factors. Here are realistic timelines for common Ottawa renovation and construction projects, including preparation time:
Deck or Porch
1–2 weeks
Drawings: 2–3 days | City review: 5 business days | Fastest approval category. See our deck drawing checklist.
Shed or Detached Garage
1–3 weeks
Drawings: 3–5 days | City review: 5 business days | May require zoning setback verification. See garage drawings and accessory building checklist.
Basement Finishing
2–4 weeks
Drawings: 1–2 weeks | City review: 5–10 business days | Plumbing and HVAC add complexity. See basement drawings.
Interior Renovation
2–4 weeks
Drawings: 1–2 weeks | City review: 5–10 business days | Wall removal, kitchen/bath relocation. See interior renovation drawings.
Home Addition
4–8 weeks
Drawings: 2–4 weeks | City review: 10–20+ business days | Site plan, structural, zoning all reviewed. See addition drawings and our addition planning guide.
Secondary Suite / Basement Apt
4–8 weeks
Drawings: 2–3 weeks | City review: 10–20+ business days | Fire separation, egress, Change of Use review. See our basement apartment guide.
New Custom Home
6–16 weeks
Drawings: 4–8 weeks | City review: 10–30+ business days | Multiple disciplines reviewed. May require site plan approval, conservation authority clearance. See custom home drawings.
Zoning Variance Required
3–6+ months
Committee of Adjustment hearing must be scheduled before a building permit can be issued. This adds months to the timeline. Conservation authority approvals can also add significant time.
Top Reasons Building Permits Are Delayed in Ottawa
When a building permit take in Ottawa is longer than expected, the cause is almost always in the application — not the City’s review process. Here are the most common reasons for delays:
Incomplete drawings — missing floor plans, cross sections, site plans, or construction details. The City issues a deficiency letter and your application goes to the back of the queue after resubmission.
Zoning non-compliance — the proposed project exceeds setback limits, lot coverage, or height restrictions. A minor variance application to the Committee of Adjustment can add 3–6 months.
Building code deficiencies — drawings that do not demonstrate compliance with the Ontario Building Code, such as missing fire separation details, inadequate egress specifications, or structural calculations.
Missing supporting documents — no structural engineer’s report when required, missing HVAC drawings, or absent site survey. The City cannot approve without all required documentation.
Seasonal volume — spring and early summer are the busiest times for permit applications in Ottawa. Submitting in winter months (November–February) often results in faster review times.
Conservation authority requirements — properties near waterways or within floodplains may need clearance from the local conservation authority before a permit can be issued. This can add weeks or months.
Want Your Permit Approved Faster?
Professional drawings are the fastest path to permit approval. We prepare complete, code-compliant packages for every project type.
(613) 518-1387
7 Ways to Speed Up Your Building Permit in Ottawa
While you cannot control the City’s review queue, you can control the quality of your application. These strategies will help ensure the fastest possible building permit take in Ottawa:
Hire a professional designer. BCIN-qualified designers and architectural technologists know exactly what the City requires. Professional drawings are the single most effective way to avoid deficiency letters.
Check zoning before you design. Verify your property’s zoning on geoOttawa or contact the Development Information Officer at 613-580-2424 ext. 23434 before investing in drawings. If a variance is needed, factor it into your timeline from the start.
Submit a complete package. Include all required drawings (site plan, floor plans, elevations, cross sections, construction details), a completed application form, and correct fees. Missing even one drawing triggers a deficiency letter.
Submit electronically. Online applications through My Service Ottawa are processed faster than paper submissions. Drawings must be 11″ × 17″ or smaller for electronic submission.
Apply during off-peak months. Winter submissions (November–February) typically face shorter queues than spring and summer applications when renovation season peaks.
Include structural engineering upfront. If your project involves load-bearing wall removal or foundation work, include a structural engineer’s report with your initial submission. Adding it later restarts the review.
Respond to deficiencies quickly. If the City issues a deficiency letter, address every item thoroughly and resubmit as soon as possible. Partial responses that miss items lead to additional rounds of review.
What Happens After Your Permit Is Approved?
Once the City approves your building permit, construction can begin. But there are important timelines and requirements to be aware of:
Keep your permit documents and all inspection records — you will need them when selling your home, filing insurance claims, or applying for future permits. Learn more about the full building permit process in Ottawa or check which renovations need a permit.
How to Track Your Permit Application Status
Ottawa’s new digital Building, Planning and Land Development portal allows you to track your application status in real time from any device. After submitting through My Service Ottawa, you can log in at any time to see whether your application is under review, if a deficiency letter has been issued, or when your permit is ready for pickup or download.
If you have questions about your application’s status, contact the Building Code Client Service Centre at 3-1-1 (or 613-580-2400 from outside Ottawa). You can also email buildingpermits@ottawa.ca with your application reference number for an update.
Frequently Asked Questions
How long does a building permit take in Ottawa for a deck?
A deck permit in Ottawa typically takes 1–2 weeks from submission to approval. The City’s first-review target for small homeowner projects like decks is 5 business days. With professional drawings, most deck permits are approved on the first review without deficiencies.
How long does it take to get a building permit for a basement renovation in Ottawa?
A basement renovation permit in Ottawa typically takes 2–4 weeks from submission to approval. The City reviews these under the “house” category with a 10-business-day target. Projects involving secondary suites or significant plumbing changes may take 4–6 weeks due to additional code review requirements.
How long does a building permit take for a home addition in Ottawa?
A home addition permit in Ottawa typically takes 4–8 weeks from submission to approval. Additions require review of site plans, structural details, zoning compliance, and building code conformance. If a minor variance is needed for setbacks or lot coverage, add 3–6 months for the Committee of Adjustment process.
How long does a new home building permit take in Ottawa?
A new custom home permit in Ottawa typically takes 6–16 weeks depending on the complexity of the design and whether additional approvals are required. Simple designs on serviced lots with no variances needed may be approved in 6–8 weeks. Complex designs requiring site plan control approval or conservation authority clearance can take several months.
What is the fastest way to get a building permit approved in Ottawa?
The fastest path to permit approval is submitting a complete, code-compliant application with professional drawings on the first attempt. Hire a BCIN-qualified designer, verify zoning compliance before submitting, include all supporting documents (structural engineering, HVAC, site survey), and submit electronically through My Service Ottawa.
What happens if my permit application is incomplete?
The City issues a deficiency letter listing all items that must be addressed. You must respond to every deficiency and resubmit, which restarts the review clock. This commonly adds 2–6 weeks to the total timeline. The more complete your original submission, the faster your permit will be approved.
How long is a building permit valid in Ottawa?
A building permit in Ottawa expires if construction has not started within 6 months of issuance. The maximum life of a permit is 2 years. If your permit expires, you will need to reapply and pay fees again. If you need additional time, you can request a deferral of revocation from the City ($367 fee).
Can I start construction before my permit is approved in Ottawa?
No. Starting construction before your permit is issued results in an administrative surcharge of 50% of the permit fee (up to $10,000), potential stop-work orders, and fines up to $50,000 under the Ontario Building Code Act. Always wait for your approved permit before beginning any work.
Are building permits faster in winter in Ottawa?
Generally, yes. The City receives fewer applications during winter months (November–February), which means shorter review queues. If your project allows, submitting during the off-season can result in noticeably faster approval — a smart strategy if you are planning a spring construction start.
How quickly do building inspectors respond in Ottawa?
Under the Ontario Building Code, municipal building inspectors are required to attend an inspection within 2 working days of being notified. Book your inspections 48 hours in advance through 3-1-1 to ensure availability. Your building inspector’s name and phone number are listed on your permit.
Get Your Permit Approved Faster
Professional permit drawings that pass City review the first time — from decks and basements to additions and custom homes.
(613) 518-1387