Farm Buildings

What is a farm building?

According to the Ontario Building Code a farm building does not allow for residential occupancy and is primarily located on land used for farming and used essentially for housing farming equipment, livestock, or the production, storage or processing of agricultural and horticultural produce or feeds.

When are building permits required?

A building permit is required for all buildings having an area greater than 10 square metres (108 square feet).

What you need

  1. A complete building permit application and pay the applicable building permit fee.
  2. A signed farm building declaration that indicates whether the proposed structure will house livestock.
  3. A complete Minimum Distance Separation (MDS) data sheet if applicable.
  4. Two sets of drawings showing dimensions, size, and type of all structural components, such as footings, posts, beams, etc., to ensure compliance with the Ontario Building Code. Schematic plumbing drawings are required if plumbing is contained within the building.
  5. A site plan showing the location of all existing and proposed buildings. Include all setbacks from the proposed buildings to the property lines. If required for MDS calculations indicate the distance from the proposed building to the existing houses on adjacent properties included in the MDS.
  6. Two sets of roof trusses, shop drawings sealed and signed by a Professional Engineer.
  7. Two sets of mechanical drawings (if applicable).
  8. Other approvals as required, such as Conservation Authority, Durham Region Health, Ministry of Transportation, et cetera.

Note: The designer may need to be registered and/or qualified. Designers of farm buildings of low human occupancy, greater than or equal to two storeys in height and greater than 600 square metres in building area are not required to be qualified and/or registered. Designers of farm buildings other than above must be qualified and/or registered. For more information, see the Qualification and Registration section of the Ministry of Municipal Affairs and Housing website. The Municipality will not issue a building permit if the designers are not appropriately qualified and/or registered. This includes architectural and engineering firms or drafting firms that provide design services.

Apply for a building permit

Apply for a building permit with our new Service Clarington portal. To get started, visit the Service Clarington portal and register for a new account.

All documents uploaded with your application must be in PDF format. Once you’ve submitted your application, it will be reviewed to ensure compliance with the Ontario Building Code, Clarington’s Zoning By-law and other applicable regulations. Please allow some time for us to process your application.

Note: Section SB-11 of the Ontario Building Code prescribes the structural requirements for low human occupancy farm buildings. A Professional Engineer must seal the drawings for all structures beyond the scope of Section SB-11.

How much will it cost?

The Building Permit fee for all Farm Buildings is $4.16 per square metre (maximum $9,998) of gross floor area, with a minimum charge of $127.54.

What inspections are required?

Building inspections

Readiness to construct footings with formwork and reinforcing in place prior to placing concrete.

Substantial completion of footings and foundation, including drainage and damproofing prior to commencement of backfilling.

Substantial completion of structural framing after heating and ventilation, mechanical and plumbing rough-in with windows and roofing in place.

Completion of the construction and installation of components required to permit occupancy, as required by the Ontario Building Code.

For most farm buildings, such as barns, where there are no finished interior spaces no other inspections beyond framing are required.

Additional inspections, such as insulation, may be required if finished concealed space contained within the building or the Building Inspector is of the opinion, they are necessary.

Plumbing inspections (if required)

Installation of building storm sewer and sanitary sewer and water service pipe. 

Installation of underground building storm drain, sanitary drain and water supply. 

Installation of drainage system, venting system and the water distribution system throughout the building. 

Installation of required plumbing fixtures and plumbing appliances as required to permit occupancy by the Ontario Building Code. 

Heating inspections (if required)

Substantial completion of ductwork and piping for heating and air-conditioning. 

Completion of the construction and installation of components required to permit occupancy. 

To arrange for an inspection, please call 905-623-7876. Call before 3 p.m. for next-day inspection.

Electrical inspections (if required)

Electrical inspections are conducted by the Electrical Safety Authority.