Building Permits

Apply for a permit

Building permit applications are required to be submitted through this building permit submission form. 

Request an Inspection

To request a building inspection, please contact 519-634-8519 ext. 9243 or email the Building division. 

Please provide your permit number, address, type of inspection and contact information. Inspections must be requested minimum one business day notice, prior to 4pm.

Inspections are typically available Monday to Friday from approximately 9am to 12pm and 1pm to 4pm.  Please note, occasionally a date or time may not be available. Inspections may be requested well in advance. Time orientated inspections, such as footings, services, septic installs, occupancy, etc., may be requested with an approximate time.  Other inspection types will generally be accommodated as either Morning/AM or Afternoon/PM timeframes unless otherwise indicated. 

Building by-law

Township of Wilmot Building By-law

Do I need a permit?

Agricultural buildings

Backflow prevention device

The installation of a backflow prevention device requires a Building Permit which can be applied for online. Backflow prevention devices are required to be tested yearly. See the Backflow prevention test report to be submitted to the Development Services Department.

For more information please visit the backflow prevention page.

Commercial, Industrial, Institutional and Large Multi-Residential

Demolition

A demolition permit is required to demolish, or partially demolish, a structure.  a Professional Engineer must provide general review of a project if the building is more than 600 square metres (6460 square feet), more than 3 storeys, contains pre-tensioned or post-tensioned members, if the demolition will affect the angle of repose of footings for neighbouring buildings, or if lasers or explosives are to be used.

Fees

List of forms:

• Application form
• Commitment to general review form
• Demolition tracking form

Fences and pools

Please visit our Fences and Pools page

Residential - decks, sheds, garage, gazebo, or finished basements

Here is the Checklist for permit submission

(Please contact the Building division regarding any questions or for more information on your specific project's permit application requirements)

Fees

When a grading approval is required prior to a building permit submission:

• Residential accessory structures, exceeding a ground floor area of 55m2 located on a property of less than       2000m2 without a previously approved grading plan
• Any building that involves alterations to grading or hard surfacing within 0.6m of a property line
• Other buildings, additions or situations as required by the Township

Contact Infrastructure Services for grading approval requirements

List of forms:

• Application form
• Schedule 1: designer information

List of sample drawings:

Deck

• specifications
• drawing

Garage / shed

• mud sill
• pier footings
• frost footings
• floating slab
• elevations

Residential - new dwelling units, tiny homes, additions or alterations'

Here is the Checklist for permit submission – New Units, Additions or Alterations

(Please contact the Building division regarding any questions or for more information on your specific project's permit application requirements)

Here is the Checklist for permit submission – Apartments Within Existing Houses

Accessory apartment guideline

Tiny home guideline

When a grading approval is required prior to a building permit submission:

• New residential buildings containing dwelling unit(s) within a Township urban area or rural settlement area or when located within 1.0m of a required property line setback
• Residential additions that are any of the following:

                       - 40% or more of the original house’s ground floor area

                       - Located closer to any property line than the original house 

                       - Within 0.6m of a required property line setback

• Residential accessory structures, exceeding a ground floor area of 55m² located on a property of less than 2000m² without a previously approved grading plan

Contact Infrastructure Services for grading approval requirements

Fees

List of forms:

• Application form
• Schedule 1: designer information
• Tarion Home Warranty Declaration Form
• A ventilation (HVAC) design summary form is required for all new residential projects and for most additions
• An energy efficiency design summary (EEDS) form is required for all new residential projects and for most additions. Either an EEDS prescriptive form or EEDS performance and other compliance form is required.
• A Plumbing Test Report is to be provided at Rough-In Plumbing Inspection.
• A heat recovery ventilator (HRV) balance certificate is required to be submitted prior to Occupancy of a dwelling if an HRV has been installed
• For new dwelling units where a final inspection deposit was paid, a final inspection must be requested within 12 months of occupancy to be eligible for a refund of the deposit.  Please submit a final inspection refund request form when the project is complete and ready for the final inspection.

Plumbing

A plumbing permit is required for alterations to a plumbing system.  This includes adding or relocating fixtures, permanently removing fixtures, adding or altering venting or drainage piping, adding or altering an irrigation system, etc.  A permit may not be required for the replacement of a fixture in the same location - for instance, replacing an older model toilet with a new low flush model.

Plumbing within new buildings, additions or alterations to an existing building, is included as part of the building permit for the entire project.

For plumbing alterations without construction work, such as irrigation systems, installation of back flow prevention devices or water/sewer service replacement, repairs or alterations, a plumbing permit is required.

Fees

List of forms:

Please contact the Building division to confirm which of the forms are required.

• Application form
• Schedule 1: designer information
• Commitment to general review form
• Location sketch of proposed work (for water and sewer service work)
• Backflow prevention report
• Plumbing Test Report

Septic

A building permit is required to alter or install a septic system.

Here is the Checklist for permit submission

(Please contact the Building division regarding any questions or for more information on your specific project's permit application requirements)

Fees

List of forms:

• Application form
• Schedule 2: sewage system installer information
• General maintenance of septic systems

All new or replacement septic system installations will require a final inspection deposit paid before permit issuance. Please submit a final inspection refund request form when the project is completed, grass growth has been established and approximately 6 months has passed from installation.  Note final inspection can not be completed in adverse weather conditions between approximately December 1^st to April 30^th.  The final inspection refund request form must be submitted within 12 months of the install date to be eligible for a refund of the deposit.

Septic audits

Septic audit requirements

A septic audit is required when new plumbing fixtures, bedrooms or more than 15 percent floor area are proposed to be added to a residence.  For non-residential systems, please email the Building division to determine if a septic audit will be required.

Septic audits must be performed by a licenced septic installer and be witnessed by a building inspector. Inspections must be requested minimum one business day in advance, prior to 4 pm by calling 519-634-8519 ext. 9243 or email the Building division.

Septic system mandatory maintenance inspection program

Signs

Solar Panels

A building permit is required for the installation of solar photovoltaic panels on a building.

Here is the Checklist for permit submission

(Please contact the Building division regarding any questions or for more information on your specific project's permit application requirements)

Fees

List of forms:

• Application form
• Schedule 1: designer information
• Commitment to general review form

Tents

A building permit is required for a tent that is 60 square metres (645 square feet) or larger, or a group of tents spaced less than 3 metres (10 feet) apart with a combined area of 60 square metres (645 square feet) or larger.

Here is the Checklist for permit submission

(Please contact the Building division regarding any questions or for more information on your specific project's permit application requirements)

Fees

List of forms:

• Application form
• Commitment to general review form

Stages and Support Structures 

A building permit is required for outdoor demountable stages and support structures that meet the following requirements: 

Here is the Checklist for permit submission 

When a permit is required for a demountable stage (outside of a building):

• If the stage/platforms are more than 60m2/645ft2 and are more than 3m/9’-10” above ground, OR
• If the stage/platforms are more than 225m2/2420sf in area (any height), OR
• If the stage/platforms include any upper structure more than 5m/16’-5” above ground

When a permit is required for a demountable support structure (outside of a building):

• If the structure is more than 3m/9’-10” above ground, OR
• If designed to carry a superimposed specified load greater than 115kg/253lbs, OR
• If the structure would create a hazard to the public

Fees

List of forms:

• Application form
• Commitment to general review form

Other approvals

 The following are frequently required approvals. Additional approvals may apply.

Alternative solutions