Building · Permit · Trois-Rivières · 2026
The official permit fee in Trois-Rivières, 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 Trois-Rivières in 2026: Single-family home (class H1) or mobile home: $737 for work of $200,000 or less, plus $2. Example: $1,462 for $450,000 of work. Delay: the City warns that the processing delay is longer than normal because of the volume of applications, without publishing a number of days. A permit is mandatory for any construction, extension or alteration of a building, whatever the cost of work; a simple declaration of work is enough for some minor renovations. 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 15 September 2026 on the City's official website.
Single-family home (class H1) or mobile home: $737 for work of $200,000 or less, plus $2.90 per $1,000 above that. Housing of 2 dwellings and more: $737 for the first dwelling, $294 per additional dwelling. Renovation, extension or conversion of a residential building: $38 up to $5,000 of work, then $3.60 per $1,000. New accessory building: $50 up to $5,000, then $2.90 per $1,000. In-ground pool $157, above-ground $76. Permit renewal: $76. Fees are indexed every 1 March. On a new house whose work is estimated at $450,000, the permit comes to $1,462.
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 warns that the processing delay is longer than normal because of the volume of applications, without publishing a number of days. Applications go through the online permit portal.
A permit is mandatory for any construction, extension or alteration of a building, whatever the cost of work; a simple declaration of work is enough for some minor renovations. 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: plans, site plan, cost estimate; the fee is payable when the permit is issued. 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.
Single-family home (class H1) or mobile home: $737 for work of $200,000 or less, plus $2. Example: $1,462 of permit fees for $450,000 of work. Figures read on 15 September 2026: v3r.net.
The City warns that the processing delay is longer than normal because of the volume of applications, without publishing a number of days. 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: v3r.net, “Permis de construction” and the urban planning fee by-law (2024, chapter 54, version in force 22 April 2026, table of fees for building permits), read on 15 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.