Policy Insight
Calgary Changed The Rules On Your Lot On August 4. Both Directions At Once.
Blanket rezoning was repealed and basement suites became automatic on the same day. Most owners heard one of those and not the other, and almost nobody has checked which way their own property went.
On 4 August 2026, two zoning changes took effect in Calgary on the same day.
The first got all the attention. Citywide blanket rezoning, brought in during 2024, was repealed. Roughly 99 per cent of properties reverted to the land use designation they carried before it.
The second barely registered. Basement suites became a permitted use, which means they are no longer subject to discretionary review.
Read those two sentences together and they sound contradictory. One narrows what you can build. The other widens it. Both are true, they landed on the same Tuesday, and which one matters more depends entirely on your lot.
What Actually Changed On 4 August
Two council decisions, one effective date.
| The change | What it does |
|---|---|
| Blanket rezoning repealed | About 99% of properties return to their pre 2024 designation. Eight low density districts reinstated: R‑C1, R‑C1L, R‑C1N, R‑C2, R‑1, R‑1N, R‑2, R‑CGex. |
| R‑CG tightened | Maximum height down from 11m to 10m. Lot coverage down from 60% to 55%. Zero lot line development removed. Rowhouses restored as a permitted use. |
| Basement suites now permitted use | No discretionary review. Approved if the property meets zoning, building, fire and safety requirements. |
| Backyard and laneway suites | Unchanged. Still discretionary, on the reasoning that they are more likely to affect surrounding properties. |
Sources: City of Calgary, Repeal of Citywide Rezoning. Council approved the repeal 8 April 2026, effective 4 August 2026. The secondary suite decision was made 28 July 2026, also effective 4 August 2026.
The Repeal, In Plain Language.
In 2024 the city rezoned most low density residential land in one move, so that rowhouses and similar forms became possible on lots that had previously allowed a single home or a duplex. That is what people meant by blanket rezoning.
As of 4 August, that is reversed for about 99 per cent of properties. Your lot went back to whatever it was before.
There are exemptions, and they are narrow. A property keeps the newer zoning if it received permit or subdivision approval under R‑CG, R‑G or H‑GO before the repeal bylaw took effect, if an application was submitted before the repeal’s first reading, or if the owner applied for the rezoning themselves after 6 August 2024.
In other words: if you had already started, you are likely fine. If you were planning to start, you are probably back to the old rules.
And Suites Got Easier On The Same Day.
This is the part that got lost.
A basement suite used to be a discretionary use in most cases. The city reviewed each application on its merits, could approve it, refuse it or attach conditions, and neighbours could weigh in. That process took time and it carried real uncertainty, which is exactly the kind of uncertainty that stops people starting.
As of 4 August, a basement suite is a permitted use. If the property meets the applicable zoning, building, fire and safety requirements, the application is approved. No discretionary review, no neighbour objection process.
That is a meaningful change for a homeowner weighing whether a legal suite is worth the effort, and it is a meaningful change for a buyer looking at a house with a basement that could become one.
Backyard and laneway suites did not change. Those are still discretionary.
Your lot almost certainly changed designation three weeks ago. The odds that it changed in a way you would notice by looking out the window are zero.
Here Is Where I Will Argue Against Myself.
I am not going to tell you this is good news for everybody, because for some owners it plainly is not.
If you bought a standard inner city lot in the last two years partly because blanket rezoning made a rowhouse or a multi unit project possible, and you had not submitted anything, that option is gone. Not delayed. Gone, unless you now apply to rezone the parcel yourself, which is a real process with a real cost and no guaranteed outcome.
And if you were counting on that possibility being priced into what a builder would pay you for the land, that assumption needs revisiting. A lot that could take three units is not worth what it was on 3 August.
The suite change does not offset that for everyone. A basement suite and a rowhouse are not the same opportunity and it would be dishonest to present them as though they cancel out.
What To Actually Do.
Everyone: look up your own parcel. This is the whole point. Ninety nine per cent of properties changed designation on 4 August and there is no letter in your mailbox telling you which one you have now. The City of Calgary publishes property specific land use information, and it takes about two minutes. Do that before you make any plan that depends on what you think your zoning is.
If you are thinking about a basement suite. The path just got materially shorter. Permitted use means the discretionary review and the neighbour objection window are off the table, so what is left is the technical work: egress, ceiling height, separation, parking, permits. Those still have to be right. But the part that used to kill projects before they started is gone.
If you are buying. Stop taking a listing’s word for suite potential. “Suite potential” was always a soft claim and it is softer now that the rules moved three weeks ago. Confirm the current land use designation on that specific parcel, and confirm whether any existing suite is legal and registered, which is a different question from whether it exists.
If you are selling a home with a legal basement suite. This is a better market for you than it was in July. The suite is now a straightforward, defensible feature rather than something a buyer has to investigate nervously. Make sure the paperwork is in order so that advantage survives contact with a buyer’s conditions.
If you own in Airdrie. None of the Calgary changes apply to you. Airdrie runs its own rules under Bylaw B‑30/2024, where an accessory suite in a single family home on a standard lot is a permitted use subject to parking and site requirements, while suites in semi detached homes and on cul de sac lots are discretionary and carry a 21 day neighbour notification period. Different city, different bylaw, and the Calgary headlines do not describe your property.
One Honest Caveat
I am a REALTOR®, not a planner and not a building official. What I can tell you is what changed and what it tends to mean for value and for a sale. What I cannot tell you is whether your specific basement will pass inspection, or whether your particular parcel qualifies for an exemption. For those, the City’s planning services and a permit professional are the right call, and I would rather send you there than guess.
Not Sure What Your Lot Allows Now?
If you are weighing a suite, a sale, or a purchase where the zoning matters, it is worth twenty minutes before it is worth twenty thousand. Happy to walk through what your designation means for what you are actually trying to do.
Zoning is the least interesting thing in real estate right up until the moment it is the only thing that matters.
Two rules changed on the same Tuesday, in opposite directions, and the version most people heard was only half of it. Take the two minutes and look your own property up.
— Tara Molina
REALTOR® CCS®, Tara Molina Real Estate Group, brokered by Royal LePage Benchmark. Proudly serving Calgary, Airdrie & Surrounding Area.
Zoning and bylaw information is summarised from the City of Calgary and City of Airdrie at the time of writing and is general information, not planning, legal or building code advice. Bylaws change and exemptions are property specific. Confirm your own parcel with the relevant municipality before making a decision.