Starting any construction or renovation project in Ontario without a building permit is illegal — and the consequences can be severe. Stop-work orders, fines, forced demolition, failed home sales, and voided insurance are just some of the risks. At ITI Permit, we make the building permit process simple, fast, and stress-free. Our BCIN-certified team handles everything — from preparing your permit drawings to submitting your application, responding to municipal comments, and getting your construction permit approved. We serve homeowners, builders, contractors, and developers across Hamilton, Toronto, Mississauga, Brampton, Oakville, Niagara Falls, Stoney Creek, Waterdown, and all municipalities across Ontario — trusted since 2012.
Enquire Now
A building permit is an official authorization issued by your local municipality that allows construction, renovation, addition, or demolition work to proceed legally. In Ontario, building permits are governed by the Ontario Building Code (OBC) and the Building Code Act.
A building permit ensures that your project:
You need a building permit in Ontario for most construction work — including new builds, additions, renovations involving structural changes, basement apartments, decks, garages, and change-of-use projects.
Many Ontario property owners are unsure whether their project requires a building permit. Here is a quick guide:
Projects that REQUIRE a building permit in Ontario:
Projects that typically do NOT require a permit:
Not sure if your project needs a permit? Contact ITI Permit for a free consultation — we review your project and municipality and give you a clear, accurate answer.
We handle the complete building permit process for all residential projects — new home construction, home additions, second storey additions, basement renovations, and interior structural changes. Our BCIN-certified team prepares all required drawings and manages your residential permit application from submission to approval.
Commercial construction permits in Ontario require detailed drawings, fire code compliance documentation, and coordination with multiple municipal departments. ITI Permit manages the complete commercial building permit process — from architectural drawings and zoning review to permit submission and municipal correspondence — for retail stores, offices, restaurants, clinics, and all other commercial project types.
Industrial building permits involve complex occupancy classifications, fire code requirements, and zoning approvals. Our team prepares permit-ready industrial drawings and manages the full permit application process for warehouses, manufacturing plants, auto repair facilities, cold storage units, and all other industrial building types across Ontario.
Converting a single-unit dwelling into a duplex, triplex, or fourplex is one of our core specialties. We prepare all required architectural drawings for multi-unit conversion permits — including fire separations, egress requirements, unit layouts, and OBC compliance — and manage the full permit submission process across Ontario.
Creating a legal basement apartment in Ontario requires a building permit and BCIN-certified drawings that meet specific requirements for ceiling height, egress windows, fire separations, smoke alarms, and ventilation. ITI Permit specializes in basement apartment permit drawings that get approved without revisions or delays.
Contractors and builders require construction permits before legally starting work on a project. ITI Permit works directly with builders and contractors across Ontario — preparing complete permit packages, managing submissions, and ensuring all permit requirements are met so construction can start on schedule.
Demolishing a structure in Ontario requires a demolition permit from the local municipality. We prepare and submit demolition permit applications — including required drawings, site plans, and documentation — and manage the process until your demolition permit is issued.
Decks above 24 inches, detached garages, garden suites, pergolas, and other accessory structures often require building permits in Ontario. We prepare permit-ready drawings for all types of accessory structures and handle the full permit application process.
Changing the use of a building — for example, converting a commercial space to residential, or a single-family home to a multi-unit dwelling — requires a change of use permit in Ontario. ITI Permit prepares the required drawings and manages the change of use permit application on your behalf.
Need to know if an existing property has open, closed, or outstanding building permits? ITI Permit helps homeowners, buyers, investors, and contractors look up building permit records across any Ontario municipality — giving you the information you need before purchasing a property or starting a new project.
When a municipality requests revisions or raises comments on a permit application, the response must be accurate, complete, and timely. ITI Permit handles all municipal revision requests and comment responses on your behalf — drawing on our deep knowledge of Ontario Building Code and municipal review standards to resolve issues quickly and keep your permit moving forward.
ITI Permit has successfully submitted building permit applications across all Ontario municipalities — from major cities to smaller communities. We understand how each municipality reviews and processes applications, what documentation they require, and how to prepare submissions that minimize review cycles.
We regularly handle building permits in:
Ontario law requires that building permit drawings be prepared by a BCIN-certified designer. ITI Permit’s team is fully BCIN-certified — meaning your drawings are legally compliant and ready for municipal submission.
We don’t just prepare drawings. We manage your entire building permit journey — from initial zoning review and drawing preparation to permit submission, municipal comment response, and final permit issuance. One team, one process, zero confusion.
Whether you need a residential renovation permit, a commercial construction permit, or an industrial building permit, ITI Permit handles all permit types across Ontario.
Need to check existing building permits on a property? We help you look up building permit records across any Ontario municipality — quickly and accurately.
Over a decade of experience handling building permits across all Ontario municipalities. We know what works, what municipalities expect, and how to get your permit approved the first time.
The most economical BCIN-certified building permit service in Ontario. Transparent quotes, no hidden fees — so your permit costs stay predictable.
We prepare drawings and submit applications faster than most Ontario permit services — without sacrificing accuracy or code compliance.
We operate from a real physical office. You can walk in, meet our team, and discuss your permit project in person. No anonymous online services — just real, accountable professionals.
If the municipality requests changes or raises comments on your application, we handle all responses on your behalf — keeping your project moving without unnecessary delays.
Step 1 – Free Consultation We review your project, site conditions, zoning, and municipality requirements. You receive a clear, transparent quote with no hidden costs.
Step 2 – Zoning & Code Review We verify your property’s zoning compliance, setback requirements, lot coverage, and applicable Ontario Building Code requirements before any drawings are prepared.
Step 3 – Permit Drawing Preparation Our BCIN-certified designers prepare all required architectural drawings — floor plans, elevations, site plans, sections, and supporting documentation — fully compliant with Ontario Building Code and your municipality’s submission standards.
Step 4 – Permit Application Submission We prepare and submit your complete permit application package to your municipality — handling all required forms, schedules, and documentation.
Step 5 – Municipal Review & Comment Response If the municipality requests revisions or raises questions, we respond promptly and accurately on your behalf — resolving any issues to keep your application moving forward.
Step 6 – Permit Issued – Build Legally & Confidently Once your building permit is issued, you are legally authorized to begin construction. ITI Permit remains available for post-permit support including inspection preparation throughout your build.
Building without a required permit in Ontario can have serious consequences:
Getting your building permit properly done by ITI Permit protects your investment, your property value, and your legal standing.
To apply for a building permit in Ontario, you need to submit a completed permit application form, BCIN-certified drawings, and all required supporting documentation to your local municipality. ITI Permit handles the entire process — from drawing preparation to submission and approval — on your behalf.
Permit timelines vary by municipality and project type. Simple residential projects may be approved in a few weeks; larger commercial or industrial projects can take longer. ITI Permit prepares complete, accurate submissions that minimize review cycles and reduce approval timelines.
Building permit fees are set by each municipality and vary based on project type, size, and scope. ITI Permit provides transparent quotes for our drawing and permit services before any work begins.
Yes. ITI Permit provides a building permit lookup service — helping homeowners, buyers, investors, and contractors check existing permit records on any Ontario property.
Builder permits are construction permits issued to contractors and builders authorizing them to legally begin construction on an approved project. ITI Permit works with builders and contractors across Ontario to prepare complete permit packages and ensure permits are in place before construction starts.
ITI Permit handles all municipal revision requests and comment responses on your behalf. Our team reviews the comments, prepares the necessary drawing revisions or documentation, and resubmits to the municipality — keeping your project on track.
Yes. ITI Permit has experience handling building permit applications across all Ontario municipalities — from Hamilton and Toronto to smaller communities across the province.
A change of use permit is required when the intended use of a building changes — for example, converting a commercial space to residential, or adding units to a single-family home. ITI Permit prepares the required drawings and manages the change of use permit application process.
Whether you need a residential construction permit, a commercial building permit, or just want to look up an existing permit on a property — ITI Permit’s BCIN-certified team delivers fast, accurate, and complete building permit services across all Ontario municipalities.
📍 Serving: Hamilton | Stoney Creek | Waterdown | Toronto | Brampton | Mississauga | Oakville | Niagara Falls | All Ontario Municipalities 📞 Call us today for a free consultation Google Map: https://share.google/F4gArxO2qA47C8CRS
Trusted by Ontario homeowners, builders & contractors since 2012.
Ontario's Most Trusted BCIN-Certified Architecture, Building Permits & Licensing Services — Serving Hamilton, Toronto, Mississauga, Brampton, Oakville, Niagara Falls, Stoney Creek & Waterdown Since 2012.
