Guide · Special situationsQuebec rules

Buying a hobby farm or land in the agricultural zone

In the agricultural zone, what you can build depends on the law, not just municipal zoning. What to check before you sign.

By Grégory Payotte, Founder of Payotte · Published October 8, 2026

In short

These are Quebec rules. Before buying a hobby farm or land in Quebec's agricultural zone, check whether it is in the zone (CPTAQ's Déméter map) and whether a house is allowed there. Without CPTAQ authorization, you cannot use a lot for anything other than agriculture, subdivide it, or sell part of it while keeping an adjacent lot. A house is allowed only in specific cases: acquired rights, a farmer, 100 hectares or more, a recognized déstructuré island, or an authorization. An application costs $355 and generally takes 4 to 6 months.

$355

for a CPTAQ authorization application (2026 fee, non-refundable)

CPTAQ

4 to 6 months

usual processing time for an application

CPTAQ

½ hectare

the area a house may use on a property of 100 hectares or more, or under a residential acquired right

LPTAA, ss. 31.1 and 103

Checking whether the land is in the agricultural zone

CPTAQ publishes the Déméter map, which lets you search by address, lot or file number. CPTAQ specifies that the 1:20,000 plans attached to the government decrees remain the official version of the zone's boundaries. For a written answer, it issues an attestation ($91.55).

A municipality cannot issue a building permit on a lot in the agricultural zone without a CPTAQ authorization or a notice of conformity. So also ask the municipality what it has already issued for that lot.

What requires CPTAQ authorization

Actions governed by the Act respecting the preservation of agricultural land and agricultural activities
Action	Rule	Section
Using the lot for anything other than agriculture	Authorization required	26
Using a maple stand for another purpose, or cutting maples	Authorization required, with exceptions (silviculture, sugar shack)	27
Subdividing	Authorization required	28
Selling part of a lot while keeping an adjacent lot	Authorization required, unless each part is at least 100 hectares	29
Removing topsoil	CPTAQ permit ($2,829 for three years)	CPTAQ fees

A subdivision or alienation made in contravention of sections 28 or 29 can be annulled (s. 30). Source: LPTAA (LégisQuébec, current to August 12, 2026); CPTAQ 2026 fees.

Building a house: the cases provided for

An acquired right survives the interruption or abandonment of a non-agricultural use, but it can end if the area is left under vegetation for more than a year (s. 102). To have a right recognized, you file a declaration with CPTAQ ($87.03) rather than an authorization application.

When a house is allowed in the agricultural zone
Situation	What the law allows	Source
You are a farmer (main occupation)	A house for yourself, your child or your employee, on your lot, without authorization	LPTAA, s. 40
The property is at least 100 hectares	A single house, on at most half a hectare	LPTAA, s. 31.1
The lot has a residential acquired right	The existing residential use, on an area of up to half a hectare	LPTAA, ss. 101 and 103
The lot is in a recognized déstructuré island	CPTAQ has generally already given the authorization: ask the municipality for the permit	CPTAQ; LPTAA, s. 59
None of these cases	Building a house is prohibited unless CPTAQ authorizes it	CPTAQ

If an application is needed

File the application with CPTAQ ($355, non-refundable even if the application is not admissible).
The municipality has 60 days to review the application and make its recommendation.
Generally allow 4 to 6 months of processing, depending on the type of authorization.
Make the authorization a condition of your offer to purchase, with a notary’s help.

Frequently asked questions

How do I know if land is in the agricultural zone?

With CPTAQ’s Déméter map, by address or lot number. For an official written answer, CPTAQ issues an attestation ($91.55).

Can I build a house on agricultural land?

Only in specific cases: farmer, property of 100 hectares or more, acquired rights, a recognized déstructuré island, or CPTAQ authorization. Otherwise, building is prohibited.

How much does a CPTAQ application cost?

$355 for an authorization, inclusion or exclusion application, and $87.03 for a declaration (2026 fees). Fees are not refundable.

What is an acquired right in the agricultural zone?

It is the right to continue a non-agricultural use that existed when the Act became applicable to the lot. It survives abandonment of the use, but ends if the area stays under vegetation for more than a year.

Sources

Loi sur la protection du territoire et des activités agricoles, chapitre P-41.1 (LégisQuébec, à jour au 12 août 2026) read 2026-10-08
CPTAQ — Tarifs read 2026-10-08
CPTAQ — Processus de traitement des demandes read 2026-10-08
CPTAQ — Consulter la cartographie numérique (Déméter) read 2026-10-08
CPTAQ — Conditions de construction d'une résidence en zone agricole read 2026-10-08

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Updated October 8, 2026

General information, not legal advice. For your situation, consult a notary or CPTAQ.