Posted by Jack ToplissA big chunk of the Cowichan Valley sits inside the Agricultural Land Reserve. If you're shopping for acreage here - Glenora, Sahtlam, Cowichan Station, Cobble Hill, the flats around Duncan - there's a very good chance the property you're looking at is ALR land.And that changes what you're allowed to do with it.This is the single most common source of confusion I run into with acreage buyers. People fall in love with a property, start picturing a shop with a suite above it or a little cottage for aging parents, and only later find out the rules don't work the way they assumed.So let's clear it up.

The Short Answer

ALR land is a provincial designation where agriculture is the priority use. It's administered by the Agricultural Land Commission (ALC), and it sits on top of your local zoning - it doesn't replace it.That's the part people miss. You have to satisfy both. The ALC sets the provincial ceiling, and your local government can be more restrictive than that, but never more permissive.In practice, that means a property can be perfectly fine under ALC rules and still be a no-go under CVRD or North Cowichan zoning.

What You Can Build Without Applying to the ALC

Here's the baseline. Most ALR parcels are permitted one principal residence, no application required, as long as it comes in at 500 square meters or less of total floor area. That's roughly 5,400 square feet, so for the vast majority of buyers it's not a real constraint. How that floor area actually gets measured has a few quirks, and I've put those in the fine print near the bottom.You're also limited to 1,000 square meters of fill for construction, and that includes your driveway and yard area. Go beyond it and you need to file a Notice of Intent with the ALC.

The Second Dwelling Question

This is what everyone actually wants to know, so let's spend some time here.A secondary suite is allowed, but only inside the principal residence. It has to be fully contained within the house. A detached building cannot be used as a secondary suite. And your local government still has to permit suites and can cap the size.A detached additional residence is also possible without an ALC application, which surprises a lot of people. To qualify:

• There can only be one existing residence on the property when construction starts
• It has to be detached from the principal residence
• On parcels of 40 hectares or less (about 99 acres, so nearly everything around here), the maximum is 90 square metres. That's roughly 970 square feet
• On parcels over 40 hectares, you can go up to 186 square meters, or about 2,000 square feet

Two important updates from the older rules. First, the additional residence no longer has to be for farm help. It can house extended family, a tenant, whoever - as long as local bylaws allow it. Second, there's a carriage house provision. If the additional residence sits on the second story above a single-story garage, the garage floor area can be excluded from the calculation, provided there's no internal connection between the two and it's clustered near the main house.One catch that trips people up: fill is not permitted outright for an additional residence. Any fill placement or soil removal to build it requires a Notice of Intent, even a small amount.

What Needs ALC Approval

If you want to go beyond the above, you're into a Non-Adhering Residential Use application. That covers:

• A principal residence over 500 square meters
• An additional residence over the 90 or 186 square meter limits
• More than one additional residence
• Staying in your existing house while you build the replacement

That last one catches people constantly. If you demolish the old house first and then build, no application needed. But if you want to live in the old place while the new one goes up, that's temporarily two principal residences on the parcel, which isn't permitted. The ALC can approve it, but they may attach conditions like a restrictive covenant on title requiring removal of the old house, or financial security to guarantee it. If you're financing, talk to your lender before you go down that road.And to be straight with you: for additional residences beyond what's permitted outright, the ALC can only approve if the residence is necessary for farm use. Not "would be nice." Necessary. They'll look at the scale and intensity of the operation, what you're producing, and what labour you already have on site.

Short-Term Rentals on ALR Land

Worth flagging because I get asked a lot.You can run a bed and breakfast in your principal residence without ALC approval, but you have to live there, it's capped at four bedrooms total, and stays are limited to 30 consecutive days per guest.Renting out the whole house on Airbnb while you're not there is not permitted outright. That needs ALC approval.An additional residence can only be used for short-term accommodation as agri-tourism, and only if the property is actively farmed and carries farm classification under the Assessment Act.On top of all that, local government rules and the provincial Short-Term Rental Accommodations Act may still apply. Check before you buy if the income matters to your numbers.

A Quick Note on Local Zoning

One Cowichan-specific wrinkle worth knowing about.The CVRD has been working on a Comprehensive Zoning Bylaw that would consolidate the nine electoral area zoning bylaws into a single document and change some setback rules on agricultural land. It ran into significant public opposition this spring, and the Board voted to pause it until after the October local elections.What that means for you as a buyer: nothing has changed. Your existing electoral area zoning bylaw is still the one that governs your property.It's a bigger story than fits here, so I've written it up separately: The CVRD Zoning Bylaw Got Paused: What Rural Buyers Need to Know.Also worth knowing: provincial rules brought in through Bill 44 in 2024 require local governments to allow one attached secondary suite on any property where a single detached home is the primary permitted use. That applies broadly, though ALR properties still have to work within the ALC rules above.

What I'd Actually Do Before You Write an Offer

If a property's ALR status matters to your plans, and it usually does, here's the order I'd go in:

1. Confirm ALR status. Don't assume. The ALC has mapping, and I can pull it for any property you're considering.
2. Pull the zoning. ALR is only half the picture. The CVRD web map will tell you the zone, and then you read what that zone actually permits.
3. Check the parcel size against the thresholds. The 40 hectare line matters a lot if a second dwelling is part of the plan.
4. Talk to the CVRD or North Cowichan building department directly about your specific idea, before you're under contract.
5. Confirm septic capacity with Island Health. A second dwelling needs a system that can handle it, and that's frequently the real limiting factor rather than the zoning.
6. Build a subject condition around it. If your plans depend on being able to add a dwelling, that belongs in the contract as a condition, not as a hope.

My honest take is that ALR land is still some of the best value in the Valley, and the rules are more flexible than they were a few years ago. The 90 square meter detached cottage option in particular has opened up real possibilities for multi-generational families. You just have to go in with your eyes open and confirm things in the right order.

The Fine Print on Floor Area

If you're getting close to the size limits, the measuring rules matter. A few things that are excluded from the 500 square meter principal residence calculation:

• Attached garages and unenclosed carports, up to a combined 42 square meters
• Basements and crawl spaces
• Unfinished attic space, but only if it's created by roof trusses. Build with attic trusses or rafters instead and that space counts against you

Worth noting that an additional residence is measured differently. It's measured to the inner surface of the exterior walls rather than the outer, and unlike the principal residence, basements do count toward the total.If you're anywhere near the line, confirm the calculation with your designer and the local building department before you finalize plans. It's a bad thing to discover late.

One Important Caveat

Everything above is a general summary of the current rules as I understand them, and it's meant to help you ask better questions. It isn't legal advice, and it isn't a substitute for confirming the specifics on a particular parcel with the ALC, your local government, and where the stakes are high, a lawyer. Rules change, and individual properties carry their own history of covenants, permits, and non-conforming uses.

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Thinking about acreage in the Cowichan Valley? This is the kind of thing I dig into for clients before they ever write an offer. Give me a call at 250-709-8708 or send me a note at jack@pioneer-realestate.ca and I'm happy to look at a specific property with you.You can also browse current acreage listings in the Cowichan Valley or have a read through my Rural Property Guide.