Building Services

• Application to Construct or Demolish – this form is the standard form for all construction projects within the municipality.
• Letter of Authorization – this form provides authorizes the agent to submit on behalf of the owner.
• Commitment to General Review by Architect and Engineers
• Schedule 1 – this is a form that is to be filled out by the designer of a project or a person who is providing design activities to a person.
• Schedule 2 – this form is required to be filled out and submitted for any septic system and is required to be filled out by a qualified person under the Ontario Building Code.
• Design Calculations For Class 2, 4, & 5 ON-SITE Sewage Systems 
• Blank Site Plan- feel free to use this to draw and include a site plan with your application.
• EEDS Prescriptive – this form is the minimum standard for energy efficiency under the Ontario Building Code and is to be used for new houses, additions, and renovations when the prescriptive path approach under SB12 is being used.
• EEDS Performance – this form is the minimum standard for energy efficiency under the Ontario Building Code and is to be used for new houses, additions, and renovations when one of the three performance approaches is being used under SB12. (Energy Star, EnerGuide, or SB12 performance).
• SB10 Form A and SB10 Form B– these forms are required for energy efficiency requirements under SB10 of the Ontario Building Code for nonresidential projects.
• Ontario Building Code Matrix – this form is to be used for all ICI (Industrial, Commercial, and Institutional) construction and is to be completed by a qualified person under the Ontario Building Code.  
• Sign Permit

Additional Links:

• Electrical Safety Authority (ESA)
• Ontario Building Code 
• Ontario Government - Minimum Distance Separation (MDS)
• Ontario One Call, Call Before you Dig
• Regulatory Roles for Construction and Renovation
• The Ministry of Environment (MOE) - Well Information

Document Search Request:

(E.g., property files, permit cards, septic plans, building plans, survey, reference or registered plan, etc.)

If you are the owner of the property: 

• Complete a Document Search Request Form and email it to astorrey@thamescentre.on.ca.
• The request base fee is $5.00 and $7.50/15 minutes for record search/redaction if applicable.
• Once the form has been received, you will be provided with next steps/payment instructions.
• The timeline for this request is 2-5 business days.

If you are not the owner of the property:

Please reach out to shenshaw@thamescentre.on.ca to confirm whether a Freedom of Information Request if required.

Zoning Certificate 

(E.g., Open Building Permits, Outstanding Work Orders, Servicing Information, Planning Application Status, etc.)

• Mail and fax a formal request letter to the municipal office.
• The fee is $200.00 per property (roll number) or $250.00 for a rush request per property.
• If payment by cheque is unavailable, contact the municipal office for additional payment options.
• The timeline for this request is 2-5 business days.

Zoning Confirmation Letter

(E.g., Ontario Motor Vehicle Industry Council (OMVIC), Propane Exchange)

• Mail and fax a formal request letter to the municipal office.
• The fee is $100.00 per property (roll number).
• If payment by cheque is unavailable, contact the municipal office for additional payment options.
• The timeline for this request is 2-5 business days.

Municipal Office Contact Information

• Address: 4305 Hamilton Road, Dorchester, Ontario, N0L 1G3
• Phone: 519-268-7334     
• Fax: 519-268-3928
• Email: inquiries@thamescentre.on.ca

The Building Code Act requires that permit fees not exceed the anticipated reasonable cost to administer and enforce the Building Code during construction. This ensures the building division operates efficiently and on a cost-recovery basis that does not rely on property taxes for its operation. All costs and expenses, including staff, for plans review and inspections, are obtained through the building permit fees and administration fees charged for services provided.

• 2024 Tariffs and Fees By-law
• Code of Conduct for Chief Building Official and Inspectors
• Building Services 2022 Annual Report - 2023 Coming Soon.

• The purpose of development charges is to assist in providing the infrastructure required by future development in the municipality through the establishment of a viable capital funding source to meet the Municipality's financial requirements.
• Development charges go towards growth-related costs such as roads, water, wastewater infrastructure, etc.
• Development Charges By-law
• Development Charges Pamphlet 2024 (Update of Phase-In Removal Pending)
• Removal of Mandatory Development Charge Phase-Ins (Effective on November 1st, 2024)
• County of Middlesex Development Charges (Collection starting January 2025)
• Proposed 2025 Development Charges Council Report
  ​​​​​

Please click here for the Treasurer's Annual Statement of Development Charges Reserve Funds for 2023.

Please click here for the Treasurer's Annual Statement of Development Charges Reserve Funds for 2022.

The purpose of the Ontario Building Code is to protect the health and safety of the public and the occupants of a building. Each and every submission for a building permit is required to be reviewed by the Building Services division to ensure compliance prior to construction starting and to permit the work under the Ontario Building Code Act and its regulations.

Reviews of all submissions are completed in a timely manner; however, each submission does require a different review process. This involves a review of all applicable laws, including Zoning by-laws, Conservation Authority regulations, other Municipal by-laws, Source Water Protection requirements, and other various acts and regulations within the province of Ontario. The type of project can result in different timelines; however, the Ontario Building Code does regulate maximum timeframes for complete submissions and complete applications. See the Thames Centre Permit Timelines

Once approval is granted, a permit will be issued for the appropriate work. It then becomes the permit holder and the owner's responsibility to ensure that work continues as per the approved submission and that all inspections are conducted as listed and required on the permit.

Inspections are a mandatory item that is required to ensure that the Ontario Building Code, and other applicable laws, include municipal bylaws, are followed, and construction/work is done safely and correctly. In order to ensure the permit is completed and closed, all precribed inspections need to be scheduled through our municipal office and passed by a building inspector.

Prescribed inspections are listed on your building permit under the ‘Stages of Construction Requiring Notice’. These inspections are required to be conducted by the Municipality of Thames Centre Building Department and notice is required to be given to the Building Department prior to each inspection as prescribed by Div.C.1.3.5.1.(2) of the Ontario Building Code.

Scheduling Inspections:

When scheduling an inspection please email building@thamescentre.on.ca, if you do not have access to email, call Tammy Butt at (519) 268-7334 extension 227 with the below required booking information:

• ​​​​​Permit Number
• Municipal Address and Lot Number if applicable.
• Stage(s) of Construction
• Date of Inspection
• Preferred timeslot:
  • Morning (9 am - 12 pm) or Afternoon (12 pm - 4 pm)

A minimum of 24 to 48 hours notice prior to readniess is required and the schedule is complete at 3:30 pm each day for the following day. Cancellations are not accepted the day of and will result as fail/a re-inspection should proper notice of 24-48 hours not be provided.

Should you require any further assistance, you can contact the Building Division.

• Building By-law
• Fence By-law / Pool Fence By-law
• Property Standards By-law
• Zoning By-law
• Signage By-law
• Public Mapping
  • Please confirm with our department prior to utilizing information.

Permits are required to not only protect yourself and other normal users of the space but to protect the public that may enter a space or protect future owners and users of the space or building. If a person does work or makes changes to any space, or building without a permit that person, company, or owner may become liable for any future problems or issues that may arise. The process of obtaining a permit is to protect the health and safety of the public for the duration of the building’s life. ​​​​​​

The list is not limited to what is shown below:

Note: please confirm with our department on permit requirements and that the proposed construction complies with applicable law.

• Detached garage or accessory structure 108 square feet or greater and/or more than 1 storey (measured to the outside face of exterior walls). 
• Plumbing fixtures added or relocated
• Attached garage, carport, shed, or other roof structure of any size
• Storage sheds greater than 161 square feet 
• Decks greater than 24 inches above grade
• Finishing the basement of a house or adding a bedroom to the basement
• Additions to a building
• Enclosures for swimming pools with a depth of 24 inches or greater (including temporary or inflatable)
• Creating a duplex/additional dwelling/apartment (a.k.a. in-law suite, accessory apartment, granny flat)​​​​​​
• Removing a load-bearing wall, column, lintel, or beam
• Re-insulating walls, ceilings, or floors
• Woodstove or wood-burning fireplace
• Installing a new window or door when increasing the width of the existing opening
• Retaining wall that is greater than three feet and three inches in height, pending location
• Solar Panels that are mounted to a building
• Site servicing (water/sewer/storm lines, septic system) for all building types
• New residential dwellings
• Demolition of a structure greater than 108 square feet in building area, except for farm buildings
• Tent or group of tents that is, more than 60 square metres (646 square feet) in aggregate ground area, attached to a building, or constructed within three metres (nine feet and 10 inches) of any structure
• Industrial, commercial, institutional, and multi-residential construction or alterations or changes of use
• Backflow prevention device for lawn irrigation systems connected to potable water
• Farm buildings including barns, bins, bunker silos, silos, sheds, scale house, etc.
• Contact the Electrical Safety Authority (ESA) for electrical permit information.​​​​​​

This list provides examples, and is not exhaustive. Projects are not limited to what is shown below.

Note: please confirm with our department on permit requirements and that the proposed construction complies with applicable law.

• ​​Storage sheds less than 161 square feet measured from the outside face of walls (that does not contain plumbing)
• Gas fireplace
• Boundary fence (must comply with zoning regulations)
• Water softener installations
• Painting, wallpapering, tiling, carpeting, cabinets, countertops, and similar finish work
• Door and window replacements (within the existing opening, where no structural members are changed, or has no fire-resistance rating)
• Installing new shingles on an existing roof
• Replacing a plumbing fixture (i.e. toilet, bathtub, or sink) with a new fixture in the same location​​​​​​

Building permits are required for swimming pools that are capable of holding equal to or greater than 23” of water.

Documentation Required:

• Building Permit Application​​​​​​

• Letter of Authorization - If applicant is not the owner.

• In-ground Pools - Revised lot grading plan stamped by an Ontario Land Surveyor or Engineer (if in a residential area), to ensure that the grading of the yard does not adversely affect the neighbors' yard.

• Above-ground Pools - Site plan showing pool location in the yard with setbacks to property lines and septic system

• Pool equipment to be shown on the site plan with setbacks to property lines

• Fence or barrier as described in the Fence By-law. ​​​​​