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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 However, as described in our Calgary zoning guide, Calgary City Council later repealed that citywide change in 2026.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.
R-CG Rules in Effect Since 4 August 2026
Calgary City Council's repeal of the 2024 citywide rezoning did two separate things. It reverted most affected parcels to their previous designation, and it also tightened the R-CG district itself for the properties that remain R-CG. These are the figures as they now stand.
| Rule | Under 2024 rezoning | In effect 4 Aug 2026 |
|---|---|---|
| Maximum building height | 11 m | 10 m |
| Maximum lot coverage | 60% | 55% |
| Zero lot line development | Permitted | Not permitted |
| Secondary + backyard suite | Both possible | One or the other |
| Backyard suite on semi-detached | Possible | Not permitted |
| Backyard suite parking | Relaxed | Reinstated |
| Maximum density | 75 units / hectare | 75 units / hectare |
Source: City of Calgary — Repeal of Citywide Rezoning. Figures describe the district's rules and are not a determination for any individual property — site conditions and the development permit process still govern what can be built.
Which Properties Kept R-CG?
A parcel generally remains R-CG if the owner personally applied for and received an individual redesignation after 6 August 2024, or if a development permit, building permit or subdivision application was approved — or a complete application submitted — before the repeal took effect. Everything else reverted to what it had been before the 2024 change, most commonly R-C1 or R-C2. Because the outcome is parcel-specific, the designation shown on an old listing or an older article should not be relied on: check the current designation before making an offer.
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 →
Can my neighbour build a duplex next door?
The answer starts with their parcel's designation, not yours. Since 4 August 2026 designation is parcel by parcel — the City states that 99% of properties returned to the district that applied before Rezoning for Housing — so the lot beside you may not carry what it carried in 2025, in either direction. Look the neighbouring address up on the City's tools rather than assuming it matches yours: how to find the zoning of a Calgary property.
Then the process decides how much say you have.
- If the proposed form is a permitted use in that district and the proposal complies with the Land Use Bylaw, the City's development authority approves it. Under Alberta's Municipal Government Act, s. 685(3), no appeal lies against a development permit for a permitted use unless the bylaw was relaxed, varied or misinterpreted.
- If it is a discretionary use, or if relaxations were granted, there is an appeal right — to Calgary's Subdivision and Development Appeal Board, filed within 21 days of the date notice of the decision is given. The deadline is stated on the notice; check the date on the notice rather than counting from the day equipment arrives.
To find out in time, watch the City's development map for applications near you and its public notices for approved permits. An appeal is about the Land Use Bylaw and the effect on your property — not about whether you prefer the design or would rather the lot stayed as it is.
If the development next door is part of why you are looking at the value of your own lot, see infill and development lots and Calgary secondary suites.
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.