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Additions and Renovations - Residential

A step-by-step guide for making a building permit application

Before starting residential additions or renovations in Norfolk County, you must ensure compliance with local building codes and regulations.

Building permits help protect you, your home, and the interests of your community by making sure the project is structurally sound and follows the Ontario Building Code, municipal zoning and other applicable laws.

Projects that require a building permit

The following list includes examples of projects that require a building permit. Please keep in mind that this is not a complete list. If you are unsure whether your project requires a permit, please call us to discuss.

  • Building an attached carport or other roof structure of any size
  • Finishing the basement of a house
  • Adding a bedroom to the basement
  • Constructing an addition to a building
  • Removing a load-bearing wall, column, lintel or beam
  • Re-insulating walls, ceilings or floors
  • Installing a new window or door that increases the width of the existing opening
  • Installing or altering a septic system

Projects that do not require a building permit

  • Painting, wallpapering, tiling, carpeting, cabinets, countertops and similar finish work,
  • Replacing a door or window within an existing opening where no structural members are
    changed, and no fire-resistance rating is in place,
  • Installing new shingles on an existing roof,
  • Removing a non-load-bearing wall in a single, semi-detached or townhouse dwelling,
  • Replacing a plumbing fixture (toilet, bathtub or sink) with a new fixture in the same location.

Building Permit process

Approvals from other agencies are often required before a building permit can be processed and issued. The building department does not administer these approvals. The fastest way to obtain a building permit is to ensure that all other required approvals are completed before the permit application.

An Applicable Law Checklist is required as part of a complete application. Agency contacts are included with this form. Our community mapping has many layers mapped to help you determine if additional approvals are required for your application.

Zoning Requirements

Finding the zoning associated with your property is easy with our GIS Community Web Map; position your property and turn on the zoning layer by clicking layer list, planning, and zoning.

Screenshot of GIS mapping tool

You will need to provide a plot plan for zoning review. Refer to Norfolk County Zoning Bylaw. This plot plan needs to include the following:

  • Property lines and lot dimensions,
  • Location of building and all other structures on the lot,
  • Location of all steps and landing,
  • Distance from dwelling to property lines
  • Parking spots with dimensions,
  • Location of septic systems

A planning application will be required if your proposed building or structure does not comply with the zoning requirements. Zoning and Planning approval is required as part of a complete permit 
application. 

Lot Grading

Under the Norfolk County Grading and Drainage By-law, proposed grading plans and a lot grading form shall be submitted with all building permit applications. 

Proposed grading plans need to identify the following:

  • all surface features; 
  • existing and proposed structures; 
  • changes in grade and slopes in percent between such changes, and
  • Include sufficient information regarding adjacent properties to confirm conformance with this By-Law with respect to drainage onto concernings.

An exemption may be considered for a lot in a rural area. You must complete the application form, and fees apply.

Site plan drawing example.

A building permit application consists of several documents. The forms must be completed, signed, and dated.

Who can design an addition or renovation?

As the property owner, you can complete the design yourself or have a qualified individual with a BCIN number in the House, an Architect, or a Professional Engineer complete the drawings. 

Drawings and Documents.

Drawings are to be legible and to scale. Use a ruler or computer-aided drafting (CAD) software to complete your drawings. Provide enough information and detail to ensure compliance with the Ontario Building Code

Building Department staff, by law, are not permitted to provide design advice. It is the responsibility of the property owner or authorized agent to complete a design that meets the requirements of the Ontario Building Code and the Building Code Act (BCA) 

If you cannot complete the application, you should retain a qualified designer to assist you. 

Building Permits - Application Checklist

Completed Forms 

  • Building Permit Application Form 
  • Schedule 1: Designer Information.
  • Applicant Authorization Form: if the property owner does not complete the application, 
  • Applicable Law Checklist and supporting documents. 
  • Lot grading form or approved exemption.
  • Water, storm sewer, sanitary sewer connection permit (where required).
  • Evaluation of existing on-site septic system (where required). 

Required Documents 

  • Plot Plan:
    • Property lines and lot dimensions,
    • Location of building and all other structures on the lot, 
    • Location of all steps and landing.
    • Distance from dwelling to property lines, 
    • Parking spots with dimensions,
    • Location of septic systems.
  • Lot Grading Plan.
  • Drawing of the building including: 
    • Footing, foundations, anchorage details (where applicable)
    • Floor plan,
    • Roof names, sizes and ceiling heights,
    • Door and window location and sizes, 
    • Location of plumbing fixtures, including laundry facilities,
    • Fire separations (if applicable),
    • Smoke alarms and/or fire alarm systems.
  • Elevations
  • Cross sections of the exterior wall from footing to roof.
  • Roof truss layout or roof framing plan.
  • Engineered floor system layout (where required).
  • Ventilation duct design,
    • Heat Recovery Ventilator (HRV) duct sizing and layout,
    • Exhaust fan duct sizing and layout.
  • Septic application (where required) This is a separate application; see septic.

Fees

  • Building Permit fee,
  • Plumbing fee,
  • Occupancy fee,
  • Lot grading exemption fee (if applicable)
  • Water, storm sewer, sanitary sewer, connection permit fee.

Septic Permits.

If the proposed addition or renovation is connected to an on-site septic system, you must provide a Septic Permit – Structural Addition application.

  • The number of bedrooms in a dwelling is increased,
  • If the proposed construction exceeds 15% of the gross area of the dwelling unit,
  • New plumbing fixtures are added to the dwelling or
  • If the proposed addition, expansion, alteration, or change encroaches on the sewage system or any components.

If the system is not adequate to support the proposed addition or renovation, a septic system application is required to be submitted with your building permit application.

Septic Permits - Application Checklist.

Completed Forms.

  • Application to Construct or Demolish
  • Schedule 1: Designer Information signed by the system designer.
  • Schedule 2: Septic Systems Installers Information signed by the applicant.
  • Applicant Authorization Form if the applicant is not the property owner.

Required Documents.

  • Septic worksheets, plot plan and system cross-section.
    • Provide a summary of existing and new components.
  • Percolation time ('T' time) from a licensed soil testing agency.
  • Building Material Evaluation Commission (BMEC) or CAN/BNQ "Onsite Residential Wastewater Treatment Technologies" approvals (if applicable).

Fees.

  • Septic Permit Fee:
    • New System or Full Replacement
    • Repair/Partial Replacement,
    • Structural Additions.

Online

In Person

Visit our service counter located at 12 Gilbertson Dr., Simcoe, Ontario.

Please call or email ahead and make an appointment. Our Permit Coordinators will review your application and provide in writing any missing items and a cost breakdown for the permit fees and payment options.

A Building Inspector will contact you in writing if there are building code concerns or missing information from your application.

A building permit is issued once all documentation has been received, fees are paid in full, and your plans are check for compliance zoning by-law and the building code.

Once you have obtained a building permit, a building inspector needs to attend your site at several milestones in the construction process. Read more about inspections.

Once all inspections are complete and passed your permit is closed. 

Need help?

If you have any questions on the building permit process or plans required, please contact permits@norfolkcounty.ca or call 519-426-5870 or 226-NORFOLK, extension 6016. 

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