There is no single Alberta-wide shed size exemption
A portable shed on an Alberta acreage may be regulated by the county, provincial building rules and separate trade-permit requirements. A development permit addresses land use and placement. A building permit addresses construction and safety. An exemption from one does not automatically exempt the other. Being delivered pre-built or placed on skids also does not settle the question.
This guide focuses on counties in and around Portable Buildings of Alberta’s service area. Use it to plan your questions, then confirm the current requirements for your specific parcel before ordering.
Rocky View County
Rocky View County says accessory buildings under 10 m² (107.64 sq. ft.) can be built without a building permit. It also notes that some districts restrict the number and combined area of accessory buildings. The County’s Land Use Bylaw has separate development-permit exemptions for some accessory buildings when the district’s conditions are met. Check your district, setbacks, parcel coverage and any direct-control or overlay rules before assuming that a small shed can go anywhere on the lot. Sources: Rocky View land-use FAQ and building-permit guide.
Foothills County
Foothills County’s accessory-building guide describes a development-permit exemption for a detached building accessory to a primary residence of 20.8 m² (224 sq. ft.) or less, provided the land-use district permits it and the property’s cumulative building limits are met. That figure is about the development permit, not a blanket waiver of a building permit. Foothills has a separate building-permit application process. Check the current land-use rules, total number and area of accessory buildings, setbacks and building-permit requirements with the County. Sources: Foothills accessory-building guide and building permits and inspections.
Mountain View County
Mountain View County’s land-use rules vary by district. Its current bylaw lists some small accessory buildings as development-permit-exempt in specified districts and sets district-specific site rules. The County’s permit portal warns that most development will likely need both a development and building permit. Because the outcome depends on district, parcel and use, avoid relying on a county-wide size number. Ask the County to check your land-use district, the proposed building’s footprint, height, location and intended use. Sources: Mountain View County land-use bylaw and permit portal.
Clearwater County
Clearwater County says that on a residential parcel, a building larger than 150 sq. ft. needs development approval, including a building on skids. The County says some farm buildings on agricultural parcels are treated differently. Setbacks still apply when development approval is not required, and building permits must be checked separately. Confirm the parcel classification and exact proposal with the County. Source: Clearwater County planning FAQ.
Five questions to ask before choosing a shed
- What is the parcel’s county, land-use district and existing approved use?
- What are the building’s exterior area, height and intended use?
- Do existing sheds count toward a cumulative area or number limit?
- Where are the property lines, easements, utilities and required setbacks?
- Are development, building, electrical, gas or plumbing permits needed?
Give the county a site sketch with the proposed shed location and dimensions. Keep the answer with your project documents, then finalize the building and delivery route. If your property is inside a city or town rather than a county, use that municipality’s rules: see our Calgary shed guide, Edmonton shed guide, and Red Deer shed guide.
Portable Buildings of Alberta can help you compare storage sheds, studio sheds and custom sheds after you identify the county’s constraints. Contact us with the intended use, target size and delivery location.
Sources checked October 21, 2026. Municipal and county requirements can change and can differ by parcel; confirm approval with the authority responsible for your property.
