Before any construction of a new building or renovation can begin, you will need to obtain a building permit. Whether you are finishing your basement, adding windows or doors or constructing a deckfence or pool, you’ll need a building permit. Building without a permit can result in fines and penalties as set out in the Building Code Act.

Apply for a permit

A building permit submission shall include a completed Building Permit Application that includes all drawings and additional forms required as noted below in the Application Guidelines. The application and necessary drawings and forms are required to be submitted in PDF format electronically to the building permit email.

The application will undergo an initial cursory review to determine completeness, with applicants being advised via email regarding status of the application’s acceptance or refusal. If your submission is refused, we will email you as to the reasons why, and the necessary corrections required to revise and resubmit accordingly, to complete the submission.

Once the building permit application package has been accepted, we will email you the invoice for permit fees, including payment options. Permit fees are due upon receipt to begin the permit review. If necessary, you will be notified by email if we require additional information to review and complete your permit application. We will also notify you by email when your building permit has been issued along with all supporting documents.

Digital submission requirements

The Town of Milton is currently utilizing electronic plans review software and is requiring digital submissions of any plans submitted with building permit applications to be emailed to Building Permit staff.


  • Digital files must be in .pdf format and generated directly from the software used to create them (AutoCAD, Softplan, Revit, etc.) using a PDF printer or converter (no scanned copies)
  • All .pdf files must have the document properties/restrictions/security settings/permissions set to allow "Printing" and "Adding Markups" so staff can apply redline notes and approval stamps to the documents

If you would like to send files electronically that are larger than 10mb, please contact us to request a secure file link to accommodate larger file requirements.

Rates and fees

Review our permit application fees.

Residential buildings

View the most common residential building permit fees in Milton.
Common residential building permit fees
Type Fee
New house or addition to house $18.96/m² - Minimum $248.96
Secondary dwelling unit (detached) $18.96/m² - Minimum $248.96
Shed, detached garage, gazebo or personal workshop

$153.70 (flat rate) - up to 27.9m²

$8.89/m² - over 27.9m²

New unenclosed deck or porch, or alteration to existing deck $153.70 (flat rate) 
Basement walkouts, exterior stairs $248.96(flat rate)
Interior renovations
Type Fee
Interior alteration $6.17/m² – Minimum $248.96
Finished basement $6.17/m² - Minimum $248.96
Secondary dwelling unit (attached) $9.03/m² - Minimum $248.96
New opening (window or door) or side door entrance $248.96
Fireplace or woodstove $248.96
New plumbing or alteration $248.96
Septic fees
Type Fee
New or replacement septic system $779.35
Septic tank or bed replacement or repair $389.67
Review of existing septic system $193.76
Other fees
Type Fee
Demolition $248.96
Temporary tent $248.96
Swimming pool enclosure permit (including hot tubs) $198
Property Information Report $358
File retrieval Actual cost plus $76
Copies of building plans  Actual cost plus $108.34
Permit transfer $162.36
Occupancy Permit (new house only) $64.94

Industrial, commercial and institutional buildings

View the most common industrial, commercial and institutional building permit fees in Milton.
Assembly uses
Type Fee
New Buildings and Additions to Existing Buildings $25.79/m²
Interior Alterations $6.17/m²
Care or detention uses
Type Fee
New Buildings and Additions to Existing Buildings $28.48/m²
Interior Alterations $6.17/m²
Residential use fees
Type Fee
Multiple unit buildings (6 storeys or less) $18.96/m²
Multiple unit buildings (greater than 6 storeys) $17/m²
Hotel or motel $17/m²
Business and personal services use fees
Type Fee
Shell only (no occupancy) $13.67/m²
Partitioned and finished $21.03/m²
Interior Alterations $7.36/m²
Mercantile use fees
Type Fee
Shell only (no occupancy) $12.34/m²
Partitioned and finished $18.98/m²
Interior Alterations $6.64/m²
Industrial use fees
Type Fee
Shell only (no occupancy) - Under 9,999 m² $12.33/m²
Partitioned and finished - Under 9,999 m² $18.97/m²
Interior Alteration – Under 9,999 m² $6.64/m²
Shell only (no occupancy) – Over 10,000 m² $10.54/m²
Partitioned and Finished – Over 10,000 m² $16.22/m² 
Interior Alteration – Over 10,000 m² $5.68/m²
Parking garage $6.96/m²
Farm buildings $4.14/m²
Mechanical, plumbing and safety use fees
Type Fee
Special systems (commercial exhaust, spray booth, dust collectors and CO detectors, etc.) $487.09 (flat rate)
Sprinkler systems $0.94/m²
Electromagnetic locks $134.22 each
Fire alarm $644.05 (flat rate)
Site servicing (sanitary, storm and water) $3.53/lin.m. 
Other fees
Type Fee
Interior alterations (all building classifications) $6.05/m² - Minimum $244.08
Elective changes (revisions) $411.33 (flat rate)
Racking system (no platform/mezzanine) $10.97 per lin.m.
Change of use (no construction or increase in hazard) $248.96 (flat rate)
Designated structures $460.03 (flat rate)
Demolition $248.96 (flat rate)
Signs 1.60% of prescribed value or min. rate $248.96
Tents $248.96 (flat rate)
Portable classrooms $248.96 (flat rate)

Minimum fee for any permit type is $248.96 (unless noted otherwise).

Additional forms

Depending on the type of renovation, you may be required to submit additional forms along with your permit application.

Application guidelines

Review our common permit application checklists to make sure your application includes all of the necessary drawings and documents:

Permit statistics

Contact us to request a copy of our monthly construction activity reports.