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R-CG zoning in Calgary does not automatically approve any specific housing form. Zoning establishes what may be possible. The actual development must comply with lot dimensions, setbacks, building form and current Land Use Bylaw requirements.
What Does R-CG Zoning Mean in Calgary?
R-CG stands for Residential – Grade-Oriented Infill. It's a Calgary land use designation established under the City of Calgary Land Use Bylaw to accommodate a range of low-density, grade-oriented housing.
R-CG became one of the most searched Calgary zoning terms following the City's 2024 citywide rezoning. However, as described in our Calgary zoning guide, Calgary City Council later repealed that citywide change in 2026. Not all properties that were previously R-CG remain R-CG today — verify the current designation of the specific property you're considering.
What Can Be Built on R-CG in Calgary?
Depending on the property and the current Land Use Bylaw, R-CG may accommodate:
- Single-detached homes
- Semi-detached homes (side-by-side)
- Duplexes
- Rowhouses
- Townhouses
- Cottage housing
- Secondary suites (within certain housing forms)
- Backyard suites (garden suites, garage suites)
This is a list of what the zoning framework may accommodate — not a list of what any given R-CG property can automatically build. The site still has to work for the proposed project.
What R-CG Zoning Doesn't Do Automatically
Does R-CG Automatically Allow Four Units?
No. The number of units that may result from a development on an R-CG property depends on the proposed housing form, the site's characteristics, and whether the development complies with current Land Use Bylaw requirements. R-CG doesn't come with a unit count attached to it.
Does R-CG Zoning Mean My House Can Be Demolished and Replaced with a Fourplex?
Not automatically. While R-CG may accommodate rowhouses and other multi-unit forms, the feasibility of any specific project on a specific property depends on the site. Before paying extra because of R-CG zoning, understand what can realistically be built on that particular lot.
Does R-CG Mean Development Is Permitted?
R-CG establishes a framework. A development permit — a separate approval for a specific proposed project — is still required before development can proceed. Permitted uses within R-CG don't require discretionary approval, but the proposal must still comply with applicable development requirements. Discretionary uses require the additional review process.
Site Factors That Determine What's Really Possible
Two R-CG properties on the same street can have very different development potential. These are the factors that matter most:
Lot Width
Many housing forms have minimum lot width requirements. Narrower lots may only accommodate certain forms.
Lot Depth
Depth affects what can fit within setback requirements and still have useful space inside.
Front & Rear Setbacks
Required distances from property lines affect the buildable footprint of the site.
Side Setbacks
Particularly important for semi-detached and rowhouse configurations.
Building Height
R-CG rules include height limits that affect the style of development possible on the site.
Parcel Coverage
Rules on what percentage of the site can be covered by buildings affect the achievable footprint.
Rear Lane Access
Lane access affects parking configuration and can be essential for certain rowhouse and suite designs.
Existing Buildings
The location of the existing house and garage affects costs and complexity if redevelopment occurs around them.
R-CG, Secondary Suites and Backyard Suites
R-CG may accommodate secondary suites and backyard suites, but suites involve more than just zoning. You'll also need to consider development permits, building permits, safety code requirements, bedroom egress, parking and Calgary's secondary suite registry.
A second kitchen and bathroom in a basement doesn't make it a legal secondary suite. If rental income from a suite is part of your purchasing rationale, verify the suite status — don't assume. See our Calgary secondary suite guide for the full picture.
What Changed with Calgary Zoning in 2026?
In 2024, Calgary introduced citywide rezoning that applied R-CG to a large portion of Calgary's established residential areas, regardless of what each individual property had been zoned previously. Calgary City Council repealed this citywide rezoning in 2026, with the changes taking effect August 4, 2026.
As a result, many properties were redesignated toward the land use designation they held before the 2024 citywide changes, subject to certain exemptions and the City's current rules. If you're looking at a property that someone told you is R-CG — or that appears on an older map as R-CG — verify the current designation directly with the City.
See also: How to Find the Zoning of a Calgary Property →
Thinking About Buying an R-CG Property?
We can help you look at the property from both sides: what the zoning and site suggest may be possible, and what the Calgary real estate market says the finished project may be worth.