Airbnb · Westmount · 2026 rules
Can you rent out your principal residence on Airbnb in Westmount, and where is a unit bought for short-term rental allowed? The city's rules, checked against its by-laws on October 19, 2026, the Quebec framework and the purchase price of a house or condo according to Centris.
Renting out your own principal residence short-term is allowed everywhere in Westmount; buying a unit to rent it on Airbnb year-round (tourist residence) is prohibited. To buy, count on $2,272,500 for a house and $835,000 for a condo at the 2026 median price (Centris). Rules checked on October 19, 2026.
The short answer
Renting out your own principal residence short-term is allowed everywhere in Westmount; buying a unit to rent it on Airbnb year-round (tourist residence) is prohibited. To buy, count on $2,272,500 for a house and $835,000 for a condo at the 2026 median price (Centris).
Renting out your principal residence in Westmount: allowed everywhere in the city
According to the City (official page of April 4, 2023), residents may rent their dwelling or part of their dwelling on a short-term basis (less than 31 days) for tourist purposes only if that dwelling is their principal residence, with the provincial attestation.
Buying to rent year-round in Westmount: prohibited
A unit that is not your principal residence, rented by the night or the week all year, is a "tourist residence". The law does not protect it: the city decides through its zoning where it is allowed.
The same City page limits short-term tourist rental to principal residences: a dwelling that is not the principal residence (tourist residence, “year-round Airbnb”) cannot be rented on a short-term basis under the municipal regulations described; the City refers reports of illegal tourist residences to Revenu Québec.
The by-law in Westmount
- Recent change: July 2025: adoption of by-law 1657 on accessory dwellings (with no mention of tourist accommodation in the announcement); an overhaul of the urban plan and regulations has begun.
What buying costs in Westmount
- House (single-family): $2,272,500 at the 2026 median, from 137 sales, +27% since 2019.
- Condo: $835,000 at the 2026 median, from 151 sales, +18% since 2019.
| Year | House, median price | Sales | Condo, median price | Sales |
|---|---|---|---|---|
| 2016 | $1,375,000 | 226 | $623,500 | 221 |
| 2017 | $1,550,000 | 214 | $587,084 | 211 |
| 2018 | $1,700,000 | 192 | $630,000 | 196 |
| 2019 | $1,795,000 | 171 | $709,000 | 219 |
| 2020 | $2,020,500 | 190 | $881,875 | 164 |
| 2021 | $1,992,500 | 188 | $917,500 | 232 |
| 2022 | $2,385,000 | 142 | $970,000 | 203 |
| 2023 | $2,040,000 | 159 | $799,000 | 220 |
| 2024 | $2,175,000 | 182 | $802,500 | 190 |
| 2025 | $2,230,000 | 200 | $992,500 | 214 |
| 2026 (since January) | $2,272,500 | 137 | $835,000 | 151 |
Quebec's rules, the same everywhere
- Registration is mandatory. Renting a unit to tourists for 31 days or less requires registration with the Ministère du Tourisme and a certificate renewed every year: $54 for a principal residence establishment, $156 for a general tourist accommodation establishment (tourist residence). Since April 9, 2026, the number must appear in every listing, social media included.
- The city decides where. The registration application must include a document from the municipality confirming that the use complies with its zoning (Tourist Accommodation Act, s. 5). A notice of non-compliance prevents the application from being filed.
- The principal residence is protected, but not without limits. Since March 25, 2023, a municipal by-law can prohibit renting out a principal residence only through a zoning amendment adopted under an adapted referendum procedure (s. 23). Several cities have done it, zone by zone.
- Principal residence means where you actually live. It is the address you give to most government departments and bodies. Since September 1, 2026, two proofs of principal residence are required at registration and at renewal.
- In a condo, the syndicate signs every year. You need the declaration of co-ownership allowing the operation or the syndicate's authorization, and since September 1, 2026 that consent is required at every renewal, not only the first time.
- Registration does not transfer. A seller's Airbnb income was earned under their file. The buyer starts over, under the rules in force on the day of the application.
The detail, section by section: Quebec's 2026 short-term rental rules, what changed on September 1, 2026, Airbnb in a condo and the fines.
Before making an offer in Westmount
- The zone of the address, not the city. In Westmount as elsewhere, the rule changes from one zone to the next. Ask the planning department for the exact zone and the use grid, or for the zoning compliance notice, before the offer.
- The declaration of co-ownership. For a condo, read the clause on rentals and the building's destination: a syndicate can refuse, and must now consent at every renewal.
- The seller's certificate. If the seller already operates, ask for the registration certificate (class, expiry date, number of units), not just the number. It will not be transferred to you.
- The return without Airbnb. Price the property as if short-term rental became impossible tomorrow: it is the only assumption that does not depend on a by-law or a syndicate vote. Our five checks before buying to rent short-term set out the order.
Our other pages in Westmount:
Each page is built from actual Centris sales and listings, aggregates only.
Property taxes in Westmount:
The tax bill, increase and rate published by the city for 2026, the assessment roll year and the school tax, with sources.
What a condo garage is worth in Westmount:
Median price of condos with indoor parking versus all condos, year by year since 2016, and the share of sales with a garage.
Frequently asked questions
Can you do Airbnb in Westmount?
Yes for your principal residence: the city allows it across its territory. For a unit bought to be rented year-round, it is prohibited.
Do you need a permit to rent on Airbnb in Westmount?
We found no municipal permit specific to short-term rental. In every case, provincial registration ($54 or $156 a year) and the municipal zoning compliance document are mandatory.
Can you buy a condo to rent on Airbnb in Westmount?
Not to rent it year-round: the tourist residence is prohibited in Westmount. A condo that is your principal residence can be rented while you are away under the rule above, if the declaration of co-ownership or the syndicate allows it.
What does a property cost in Westmount in 2026?
House (single-family): $2,272,500 at the 2026 median, from 137 sales, +27% since 2019. Condo: $835,000 at the 2026 median, from 151 sales, +18% since 2019.
All cities side by side: Airbnb in Quebec, the rules of 74 cities.
Sources
Municipal rules in Westmount checked on October 19, 2026:
- Location touristique à court terme à Westmount (official source, in French, 4 avril 2023)
- Adoption du règlement 1657 sur les logements accessoires (official source, in French, 2025)
Quebec framework:
- Tourist Accommodation Act (CQLR, c. H-1.01), ss. 5, 23 and 52 (LégisQuébec, current to August 12, 2026)
- Tourist Accommodation Regulation (H-1.01, r. 1) (LégisQuébec, current to July 1, 2026)
- Registering a tourist accommodation establishment (in French) (Québec.ca, updated September 24, 2026)
Prices: Centris (Matrix), Statistics module, query of September 16, 2026 for all of Westmount, Single-family and Condominium categories, median sale price and number of sales per year; 2026 since January; years with fewer than 10 sales left blank; compiled by the Loaa & Manseur team, aggregates only. This page informs: it is neither legal nor tax advice, and a by-law can change after the date it was checked.
Also available in French: version française de ce guide.
Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.