Building · Permit · Blainville · 2026
The official permit fee in Blainville, the delay and when it really starts, the work that needs none, the documents that block, and what unpermitted work costs on resale.
The building permit in Blainville in 2026: According to the permit application form (Tarification section): a new residential construction costs $10 per square metre of floor area, minimum $1,000 (a 150 m² home therefore pays $1,500); 4 dwellings and more, $600 per unit; an extension, $10 per $1,000 of work, minimum $50 and maximum $1,500. Delay: the City does not publish an issuance delay on the form; the permit is issued after the Urban Planning Department analyzes the complete file. Every new main building and every extension requires a permit; the form provides for plans signed and sealed by an engineer (structure, civil, mechanical and electrical, sprinklers) when the project requires it. The official delay only starts with a complete file (site plan by a land surveyor, plans, estimate), and a project that needs a minor variance or a PIIA waits for the council sitting. Figures read on 16 September 2026 on the City's official website.
According to the permit application form (Tarification section): a new residential construction costs $10 per square metre of floor area, minimum $1,000 (a 150 m² home therefore pays $1,500); 4 dwellings and more, $600 per unit; an extension, $10 per $1,000 of work, minimum $50 and maximum $1,500. A $1,000 deposit is required for the service connection.
The permit fee is never the real cost of the project: it comes on top of the surveyor's site plan, the architectural plans, the connection permit where it is separate, and the welcome tax that follows the purchase. Our page buying a new build (in French) puts the other items end to end.
The City does not publish an issuance delay on the form; the permit is issued after the Urban Planning Department analyzes the complete file.
Every new main building and every extension requires a permit; the form provides for plans signed and sealed by an engineer (structure, civil, mechanical and electrical, sprinklers) when the project requires it. For small jobs (shed, fence, deck), our guide which small works need a permit (in French) gives the general rules, and the borough or planning department decides for your address.
The City asks for: the architectural plans, the site plan, engineer-sealed plans when required, the applicant's consent and declaration. The document that blocks most often is the site plan: it comes from a land surveyor, not from the builder, and it must be ordered early. Our guide to boundary marking and the surveyor explains it.
An extension, a garage or a basement apartment built without a permit does not disappear at the sale: the new certificate of location shows it, the seller's declaration requires you to declare it, and an informed buyer negotiates the price or demands regularization. The municipality can fine you and, in serious cases, order demolition. Before selling a converted property, have the permits checked by a broker from the team: that file is settled before the first showing, not at the notary's.
According to the permit application form (Tarification section): a new residential construction costs $10 per square metre of floor area, minimum $1,000 (a 150 m² home therefore pays $1,500); 4 dwellings and more, $600 per unit; an extension, $10 per $1,000 of work, minimum $50 and maximum $1,500. Figures read on 16 September 2026: blainville.ca.
The City does not publish an issuance delay on the form; the permit is issued after the Urban Planning Department analyzes the complete file. The delay only runs from a complete file, and a minor variance, a PIIA or a specific project adds the council step.
A fine, a stop-work order and, in serious cases, an obligation to restore. On resale, unpermitted work shows on the certificate of location and in the seller's declaration: it is then paid for in negotiation or in regularization.
Sources: blainville.ca, building permit application form (Documents and Tarification sections), read on 16 September 2026. Municipal fees are indexed every year; this page is redone when the City publishes its new grid. It is informational: the City decides for your project.
The Loaa & Manseur team, led by Lotfi Manseur and Loaa Al Daow, is 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 of large residential teams according to the official RE/MAX ranking, computed on actual transactions. Its Google profile counts more than 220 reviews with a 4.9 rating. Its offices are at 55 avenue de l'Équinoxe in Brossard, one bridge from the island, and every broker's licence can be checked in the OACIQ public register. Three things to verify yourself before calling us, and to demand of any other broker.
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.
Équipe no 1 de RE/MAX Platine en 2024 et en 2025, 6e au Québec, 15e au Canada et dans le top 50 mondial au classement officiel RE/MAX. Réponse en moins de 24 heures, sept jours sur sept.