Building permits and inspection booking in Ajax

Ajax, Ontario, Canada

Building permits and inspection booking in Ajax. Ajax accepts residential building-permit applications through its Online Application Portal.

Key information

Ajax accepts residential building-permit applications through its Online Application Portal. Applications outside the portal’s scope go to buildingpermits@ajax.ca. A submission must pass pre-screening before it becomes an application. Once a permit is issued, the owner must keep approved drawings on site and arrange the required inspections.

On this page

Key facts and next steps

Building permits and inspection booking in Ajax. Facts checked October 14, 2026.
QuestionAnswer
Which permit applications can use the online portal?The town currently accepts residential-property applications through its Online Application Portal. Applications not accepted there go by email to buildingpermits@ajax.ca with completed forms, drawings and supporting documents.
When does my submission become a permit application?Staff first check submission standards. Once pre-screening is approved, it becomes an application; the page defines the application date as the following day. Uploading incomplete files does not start the same process as an accepted application.
Does the town permit replace electrical notification?No. Ajax explicitly distinguishes the building permit from notification to the Electrical Safety Authority. A project may require both. Also obtain utility locates before excavation through Ontario One Call, online or at 1-800-400-2255.

Sources: Building Permits & Inspections

Process at a glance

What to check, prepare and do
  1. Which permit applications can use the online portal

    The town currently accepts residential-property applications through its Online Application Portal. Applications not accepted there go by email to buildingpermits@ajax.ca with completed forms, drawings and supporting documents.

  2. When does my submission become a permit application

    Staff first check submission standards. Once pre-screening is approved, it becomes an application; the page defines the application date as the following day. Uploading incomplete files does not start the same process as an accepted application.

  3. How do I receive review comments and pay fees

    Reviews and revised submissions are electronic through the portal or email. Staff send the applicable fee and payment instructions. All outstanding fees must be paid before permit issue; there is no single verified price for every project.

  4. How do I book an inspection

    Give at least 24 hours' notice through the inspection form or call 905-619-2529, select Planning and Development option 4, then Building Inspection option 2. Supply the permit number, address, inspection code, requested date/AM-or-PM and a contact name and number.

Sources: Building Permits & Inspections

Prepare and submit an application

Which permit applications can use the online portal?

The town currently accepts residential-property applications through its Online Application Portal. Applications not accepted there go by email to buildingpermits@ajax.ca with completed forms, drawings and supporting documents.

Source: Building Permits & Inspections

What types of work are covered by Building Services?

The page lists building, demolition, sign, plumbing and alternative-solution applications. Examples include decks, sheds, additions, dwelling units, renovations, tents and major commercial or institutional work. Requirements depend on the actual project.

Source: Building Permits & Inspections

Can I submit the sample drawings from a town guide?

No. The sample drawings show the type of information required and are reference examples. Submit drawings and documents for the specific property and proposed work, following the relevant guide and checklist.

Source: Building Permits & Inspections

Sources: Building Permits & Inspections

Review, drawings and permit issue

When does my submission become a permit application?

Staff first check submission standards. Once pre-screening is approved, it becomes an application; the page defines the application date as the following day. Uploading incomplete files does not start the same process as an accepted application.

Source: Building Permits & Inspections

How do I receive review comments and pay fees?

Reviews and revised submissions are electronic through the portal or email. Staff send the applicable fee and payment instructions. All outstanding fees must be paid before permit issue; there is no single verified price for every project.

Source: Building Permits & Inspections

Who can prepare permit drawings?

Depending on the building and work, the owner, qualified designer, architect or engineer may prepare them. Registered designers must provide the relevant BCIN information, responsibility statement, signature and Schedule 1. Some projects need professional design and general review.

Source: Building Permits & Inspections

Sources: Building Permits & Inspections

Arrange inspections and site records

Does the town permit replace electrical notification?

No. Ajax explicitly distinguishes the building permit from notification to the Electrical Safety Authority. A project may require both. Also obtain utility locates before excavation through Ontario One Call, online or at 1-800-400-2255.

Source: Building Permits & Inspections

What must remain at the construction site?

Post the permit card visibly and keep one set of approved drawings and documents on the property for the inspector. The applicant must print approved plans to scale and in colour, not rely only on a phone copy.

Source: Building Permits & Inspections

How do I book an inspection?

Give at least 24 hours' notice through the inspection form or call 905-619-2529, select Planning and Development option 4, then Building Inspection option 2. Supply the permit number, address, inspection code, requested date/AM-or-PM and a contact name and number.

Source: Building Permits & Inspections

Are requested inspection times and permit periods guaranteed?

The requested inspection time is not guaranteed. Follow the inspection stages on the permit card. The page states that work must start within six months of issue and finish within one year; contact Building Services about the actual permit if timing changes.

Source: Building Permits & Inspections

Sources: Building Permits & Inspections

Sources: Building Permits & Inspections