Ontario Shed & Workshop Permit Drawings

Shed & Workshop Permits

Planning a backyard shed or detached workshop? Building Permit Group prepares property-specific permit drawings and helps identify the zoning and municipal submission requirements that apply to the proposed structure.

Start With the Proposed Use

A Storage Shed and a Workshop Are Not the Same Permit Question.

Ontario has a specific Building Code exemption for certain sheds. To qualify, a shed must meet all of the exemption conditions, including being no more than 15 m² in gross area, one storey, detached, used only for storage ancillary to the principal building, and without plumbing.

A detached workshop should not automatically be treated as a permit-exempt shed simply because it is small. The intended use, size, construction, servicing and local zoning all need to be considered before relying on an exemption.

Even when a building permit is not required, municipal zoning rules can still regulate where a structure is located and other property-specific standards.

Shed vs. Workshop

Two Similar Backyard Buildings Can Follow Different Rules.

The label on a prefabricated building is not enough. What matters is the structure that will actually be built, how it will be used and the rules that apply to the property.

Storage Shed

Designed and Used for Storage

A detached storage shed may qualify for Ontario's specific permit exemption only when every exemption condition is satisfied.

  • Confirm gross area and building height
  • Confirm it remains detached
  • Confirm storage-only use
  • Confirm no plumbing is proposed
  • Check municipal zoning separately
Detached Workshop

Designed for Hobby or Work Activities

A workshop is a different use from a storage-only shed. Permit and zoning requirements should be checked for the actual workshop design before construction.

  • Review proposed use and floor area
  • Review foundation and structural system
  • Identify doors, windows and building height
  • Consider servicing where proposed
  • Confirm local accessory-building zoning
Typical Permit Package

Drawings That Show Both the Building and Its Place on the Lot.

The required package varies by municipality and project. Where a permit is required, these are common drawing components for a detached shed or workshop application.

01

Site Plan

Property lines, existing buildings, proposed structure, setbacks and other relevant site conditions.

02

Floor Plan

Overall dimensions, wall layout, openings and the proposed use of the detached building.

03

Exterior Elevations

Building height, roof form, exterior openings, materials and the relationship to finished grade.

04

Building Section

Foundation, floor, wall and roof construction shown through the structure where required.

05

Construction Details

Typical assemblies, framing and connection information needed to explain how the structure is built.

06

Supporting Coordination

Additional structural or property information coordinated where required for the agreed permit scope.

Planning Before Drawings

The Best Location Is Not Always the Most Obvious Spot in the Yard.

A detached building has to fit the property as well as the homeowner's intended use. These checks can affect the design before permit drawings are finalized.

01

Setbacks & Placement

Property lines, other buildings and local accessory-structure rules can influence where the building may be located.

02

Height & Massing

Roof form and overall height should be reviewed against the municipality's applicable zoning standards.

03

Lot Coverage

Existing buildings and other structures can affect how much additional building area is available on the property.

04

Easements & Site Constraints

Survey information can identify easements and other conditions that should be understood before locating the structure.

05

Foundation & Construction

The selected construction system affects the drawings and details needed to describe the proposed building.

06

Use & Servicing

A storage-only shed, workshop and serviced accessory building should not be assumed to follow identical permit rules.

Our Process

From Backyard Concept to a Coordinated Permit Package.

We keep the use, property conditions and permit drawings connected so the documentation reflects the actual structure being proposed.

Project Review

Confirm whether the proposal is a storage shed, workshop or another accessory building.

Property Information

Review the address, survey or site information, dimensions and preferred location.

Zoning Review

Identify the municipal zoning considerations relevant to the proposed structure.

Permit Drawings

Prepare the plans, elevations, sections and construction details required for the scope.

Submission Preparation

Organize the drawing package and applicable municipal application information.

Review Support

Address drawing-related municipal comments within the accepted project scope.

Why Building Permit Group

Small Building. Property-Specific Decisions.

A backyard structure can be modest in size while still raising important questions about use, zoning, construction and municipal documentation.

01

Permit and Zoning Kept Separate

We do not treat a building-permit exemption as automatic zoning approval.

02

Use Reviewed Up Front

The distinction between storage and workshop use is considered before the permit path is assumed.

03

Property-Based Documentation

The proposed structure is coordinated with the actual site information available for the property.

Municipal Guidance

Local Zoning Still Matters When the Building Code Exemption Applies.

Ontario establishes the specific Building Code exemption for qualifying sheds, but municipalities administer building permits and apply local zoning rules. Setbacks, height, lot coverage, placement and submission requirements can vary by location.

That is why a shed or workshop should be reviewed against the municipality and property rather than a generic Ontario checklist alone.

Related Residential Services

Use these only when they match the actual project scope.

Shed & Workshop FAQs

Questions Homeowners Ask Before Building.

These answers provide general Ontario guidance. Property-specific zoning and municipal submission requirements still need to be checked locally.

Do I need a permit for a shed under 15 m² in Ontario?
A shed can be exempt when it is no more than 15 m² in gross area, no more than one storey, detached, used only for storage ancillary to the principal building, and has no plumbing. Municipal zoning requirements can still apply.
Does the 15 m² shed exemption apply to a workshop?
Do not assume it does. The Ontario exemption is specifically framed around a shed used only for storage. A detached workshop should be reviewed according to its actual use, size, construction and municipal requirements.
Can zoning apply even if my shed does not need a building permit?
Yes. A building-permit exemption does not remove municipal zoning requirements. The proposed location and other zoning standards still need to comply with the municipality's rules.
What drawings may be required for a shed or workshop permit?
Depending on the municipality and project, the package can include a site plan, floor plan, elevations, building sections and construction details. Additional information may be requested during review.
Does adding plumbing change the permit question?
Yes. Plumbing is one of the conditions that prevents a shed from using Ontario's specific shed exemption. Toronto also states that an accessory structure with plumbing requires a building permit regardless of size.
Can I use a prefabricated shed drawing for my permit?
Manufacturer information can be useful, but the municipality may still require drawings that show the proposed structure, construction and its relationship to the actual property. Submission requirements should be checked before applying.
What should I provide for an initial project review?
Start with the property address, proposed shed or workshop dimensions, intended use and preferred location. A survey, site sketch, product drawings and photographs are useful when available.
Can construction start before a required permit is issued?
Where a building permit is required, the work covered by the permit should not begin until the applicable municipality has issued it.