ALR Zoning in South Langley: what you can and can't build

The secondary residence, with its two sizes. Since 31 December 2021, ALR parcels may add a second residence without an ALC application: up to 90 square metres, roughly 968 square feet, on parcels of 40 hectares or less, and 186 square metres above that, where a single residence stands when construction begins. Almost every Langley acreage sits under 40 hectares, so 90 is the working number. A garden suite, a converted outbuilding, a home for parents or a farmhand: this is the quiet provision behind Langley's multi-generational compounds, and it remains subject to Township of Langley bylaws, so siting and servicing still go through municipal approval. One ceiling hides inside it that catches estate buyers in particular: where the existing principal residence already exceeds 500 square metres, a non-farm second residence is not permitted on that parcel at all. The big house and the guest house are, on most of this land, mutually exclusive, and the time to learn that is before you pay for both.

Want more than the provisions allow? Then you are into an application, and it helps to understand who you are applying to. A principal residence over 500 square metres needs a non-adhering residential use application under ALC Policy L-26 (adopted April 2020, amended May 2025), routed through the Township to the Commission, which weighs total residential footprint against agricultural capability. The Commission is not a zoning board weighing neighbourhood character; its own published policy is blunt that it reviews applications against the interests of the farmland, not against your finances, your mortgage or your family's housing needs. Applications framed around personal circumstances fail for exactly that reason. And there is a gate before the gate: under sections 25(3) and 30(4) of the Agricultural Land Commission Act, the Township has discretion whether to forward a non-farm application to the Commission at all, so a proposal can die at the counter without the ALC ever seeing it. The ones that succeed are framed around the land: where the buildings sit, what ground they take out of production, and what the parcel keeps.

The existing house may be the most valuable permission on the parcel. Because the principal-residence ceiling is 500 square metres, a larger, legally existing house on ALR land is not just square footage; it is an entitlement that could not be created today without the Commission's consent. A tired 7,000-square-foot house on beautiful land is a 500-square-metre rebuild unless the ALC says otherwise, and two parcels with identical acreage and identical asks can therefore be very different money. The estate-tier version of that arithmetic, corridor by corridor, is its own report: The $3M Ledger.

Farm buildings. Barns, equipment sheds, greenhouses and the like are permitted farm uses, the reserve exists to protect exactly this. The friction arrives when a "barn" carries plumbing, insulation and a suspicious number of windows; the Township has seen every version of the residential-barn manoeuvre and approves none of them, and the Commission's own guidance is explicit that the presence of buildings or ongoing activities does not mean they are authorized. If a listing's outbuilding is doing quiet residential work, treat it as a liability to be priced, not a feature to be paid for: an unpermitted dwelling can be ordered out of use, and the buyer inherits the order. The same caution runs to uses: an existing non-farm use approval may have been granted for the sole benefit of the applicant, not transferable to you, so the business you think you are buying may not survive the completion date.

Subdivision. Assume no. ALR subdivision requires ALC approval and is rarely granted, whatever the zoning says; the reserve's whole purpose is keeping parcels whole, and the Commission's guidance repeats that minimum lot sizes in zoning bylaws do not mean subdivision is allowed. There is one narrow, dated exception worth knowing about: the homesite severance policy, open to owners who have owned and occupied the property since before December 21, 1972. Every year there are fewer parcels that qualify, and where one does, it changes the file completely. Non-ALR rural enclaves follow Township minimums instead, parcel by parcel, and we check, but the working assumption on reserve land is that the acreage you buy is the acreage that stays.

Where the ALR meets the Township's zoning, the stricter rule always wins. The RU-1 rural zone permits up to two single-family dwellings on a lot, and says so expressly subject to the Agricultural Land Commission Act (Zoning Bylaw 1987 No. 2500, section 201.2). Buyers read the zoning and price a second full house; the Act is the binding half, and it caps the second dwelling at the 90-square-metre provision. The same logic answers the densification question: buyers hear that BC now requires municipalities to permit three to six units on single-family lots and assume it reaches acreage. It almost never does. Parcels larger than 4,050 square metres, roughly an acre, are exempt from the small-scale multi-unit requirement, and so are parcels not connected to both community water and sewer. Most ALR land fails both tests at once. The densification story reshaping Langley's urban lots passes rural Langley by, which is precisely why the reserve's own two-dwelling arithmetic matters so much out here.

What the reserve does to value. The ALR is often described as a restriction, and it is, but it is also the reason south Langley still looks the way it does: the reserve makes no more land, and the region makes more buyers every year. What the rules above decide is not whether a parcel is valuable but which buyers it is valuable to. A parcel that carries its full two-dwelling entitlement, with permitted buildings and clean approvals, trades to families planning a compound. A parcel that has spent its entitlement, or carries an unpermitted dwelling, trades to a narrower pool at a discount that is knowable in advance. Acreage is already a patient market; the board's Langley-wide figures for July 2026 put a house with acreage at 91.4 days on market against 32.0 for a detached house on a lot. Getting the ALR file wrong adds months to that, and usually a price cut with it.

The five questions we ask before every rural offer: Is the parcel wholly or partly in the ALR (boundaries cut through properties more often than you'd think, and a parcel can be half in, half out)? What dwellings exist now, were they permitted, and does the principal residence sit under or over 500 square metres? Does the intended second dwelling fit the 90-square-metre provision, or is the entitlement already spent? What does the Township's zoning add on top of the reserve's rules? And is there a non-farm use, a business, a shop operation, an event use, that needs its own approval, or a new one, to continue under a new owner?

If you already own ALR land and someone has approached you about it, the same framework runs in reverse: what your parcel can carry is what it is worth, and the person across the table has usually done that arithmetic before knocking. Our Property Intelligence Report sets out the whole file on your own parcel, free, before you sign anything.

Sourced from the Agricultural Land Commission Act (including sections 25(3) and 30(4)), the ALR Use Regulation's residence provisions effective 31 December 2021, ALC Policy L-26 (amended May 2025) and Information Bulletin 05 (revised 13 June 2024), the Commission's published buyer guidance, Township of Langley Zoning Bylaw 1987 No. 2500 section 201.2, and the Province's small-scale multi-unit policy manual for the exemptions; market figures Fraser Valley Real Estate Board, July 2026; all verified August 2026. This report describes and informs; it is not legal advice, and parcel-specific questions deserve parcel-specific verification, which is what we do. Do you know whether the house on the parcel you are considering could be rebuilt at its current size, and whether its second-dwelling entitlement is still unspent?