Free evaluation of your house, condo or plex in Longueuil: its market value, and what you will keep after the sale

How much is a house worth in Longueuil in 2026?

In Longueuil, the median single-family home sold for $625,000 in Vieux-Longueuil and $587,500 in Saint-Hubert in the third quarter of 2026, according to Centris statistics, unchanged over one year. In Greenfield Park, where the quarter’s sales are too few for a median, the median over the last four quarters is $570,062.

Centris publishes no figure for the city as a whole, and three medians do not merge into one. For condominiums, the summer median is $398,500 in Vieux-Longueuil and $395,000 in Saint-Hubert; for a Vieux-Longueuil plex, $840,000.

The median is the middle price: it describes no house in particular. The Vieux-Longueuil median brings together dwellings built before 1960, 19% of the housing stock according to the 2021 census, and others built after 2010. Between a 1949 house near the metro and a 1985 two-storey house left in original condition, the gap comes down to what was redone, the lot and the street.

How I evaluate a house in Longueuil

Georges Matar

Trained as a biomedical engineer, member of the Ordre des ingénieurs du Québec, holder of a doctorate. Residential real estate broker, OACIQ licence J7941, RE/MAX DU CARTIER INC., real estate agency.

Before brokerage, I spent about ten years in scientific research, taught for eight years in a faculty of engineering and was regional manager of biomedical engineering in Nunavik. One habit stayed with me: a figure given without its margin of error means nothing. A home evaluation is a measurement. I treat it as one.

1. I choose the comparables. Recent sales, as close to your home as possible, of the same type and similar age. I add the area’s expired or withdrawn listings: they show the price the market turned down, and a seller should know it before listing.
2. I adjust each comparable for what sets it apart from your property: living area, year built, renovations and their age, lot, garage, finished basement, pool, distance from the train station or the highway. Every adjustment is written down, in dollars. You can discuss it line by line.
3. I measure the spread. Once adjusted, comparables never land on the same price. The gap between them, the standard deviation for engineers, tells you how reliable the range is: three sales within $10,000 of each other do not tell the same story as six sales spread over $80,000.
4. I give you a range, not a flattering number. The strategic list price and the probable sale price are two different things. I show them side by side, with what could move one or the other.

This is a comparative market analysis prepared by a real estate broker, not a chartered appraiser’s report. It is meant to help you decide whether selling is worth it, when, and at what list price.

The first adjustment, in Longueuil, is age. According to the 2021 census, 76% of the dwellings in Greenfield Park and 59% of those in Vieux-Longueuil were built before 1981. In Saint-Hubert, it is 45%, and 18% date from 2011 or later. Past 45 years, each component gets a dollar figure, whether redone with an invoice or original: roof, windows, electrical service entrance, plumbing, French drain.

The 1949 two-storey house sold this year in Vieux-Longueuil, presented below, gives an example: roof redone and plumbing updated in 2014, metro nearby. Against comparables of the same age left in original condition, this work becomes an adjustment line, one that the invoices and dates make it possible to defend.

The type of property also changes the comparison. In Vieux-Longueuil, 58% of households are renters, and 259 plexes of 2 to 5 units sold there in one year, according to Centris: a plex there is also evaluated on its rents, its leases in place and its expenses. In Saint-Hubert, 53% of dwellings are single-detached houses and 69% of households are owners. In Greenfield Park, semi-detached and row houses make up 18% of the stock, and are compared with one another.

For that house, I looked for comparables in stages. First, sales concluded in under 30 days over the last six months; then those that took 60 days, 90 days, up to six months. That shows what sells fast and what lingers, and the margin to give the seller. I then widened to one year, then to a year and a half, to read the underlying trend and not just the current one. At every stage, the same type of property, down to the number of bedrooms above ground and in the basement.

What weighed most: upstairs, there were no truly separate bedrooms, but one room divided in two, with a single entrance from the staircase. That detail could have lowered the price. We presented it to buyers as it was, with the house’s potential, and it was not an obstacle. That is why an estimate made on paper keeps a margin: the visit, and the call before it about the condition of the house and planned work, adjust it.

What your free evaluation includes

Comparable sales in your area

Three to six properties similar to yours, sold in the last six months when there are enough sales, further back otherwise, and I then tell you why. For each one: its listing sheet, sale price, time on market, and what brings it closer to or sets it apart from your home.

The price range

Two figures side by side: the list price I would recommend and the probable sale price. The gap between them is the negotiating margin buyers in your area obtained on recent sales, measured by the difference between asking price and price paid.

The net amount after the sale

The probable price, minus your mortgage balance, the prepayment penalty if any, the broker’s fee and its taxes, the mortgage discharge at the notary and a new certificate of location if yours is out of date. This is the figure that decides a plan. Good news on the price can vanish into a penalty nobody asked the lender about.

The three improvements that pay off most, and the ones not worth doing

A short list, specific to your home: what takes away a reason for the buyer to negotiate (a visible repair, a missing document, a poorly presented room) and what would cost you more than you would get back. No generic renovation list.

For a condo: reading the co-ownership file

Declaration of co-ownership, minutes of the latest meetings, contingency fund statement and fund study, building by-laws: I read them before setting the price. The buyer and their notary will read them too, and a special assessment announced in the minutes always ends up being paid in the price. I hold the Coproprié-T certification in co-ownership law.

Example: what is left after selling a $625,000 house in Longueuil

The calculation starts from the median Vieux-Longueuil house in the third quarter of 2026. The mortgage balance, its rate and the fee rate are made up: they show the mechanics, not your result, which your evaluation calculates with your figures.

Two items are not in the table, and that is deliberate. The mortgage discharge fees, which your notary sets themselves. And the apportionment of municipal and school taxes on the day of the deed: if you have already paid for the year, the buyer reimburses you the share that runs after the sale.

Neither the law nor the OACIQ sets a rate: the fee is negotiated, as a percentage or as a flat amount, and is written into the brokerage contract. On a $625,000 sale, one percentage point is worth $6,250, or $7,185.94 once the GST and QST are added. The full calculation is in the broker’s commission in Quebec, and all the costs in the real cost of selling a home in Quebec.

Have the penalty confirmed by your lender first. With a fixed rate, the lender takes the higher of three months’ interest and the interest rate differential, which can far exceed the example. Ask for the amount at the planned sale date, and whether the loan can be transferred: the mortgage penalty, with examples.

The Longueuil real estate market in figures

Figures for July to September 2026, taken from Centris on November 11, 2026; those of the fourth quarter will replace them in mid-January 2027.

Sources: Centris real estate statistics for Longueuil (Le Vieux-Longueuil), Longueuil (Saint-Hubert) and Longueuil (Greenfield Park). Changes compare with the third quarter of 2025; the change in selling time is in days. “Not published”: Centris considers the number of sales insufficient for a reliable statistic.

Prices are holding, sales are slowing: the median house price is not moving in Vieux-Longueuil or in Saint-Hubert, where 5% and 18% fewer houses sold, respectively, than in summer 2025. The supply of houses remains thin. At the summer pace, Saint-Hubert had about 3.1 months of inventory (134 active houses for 43 sales per month), Vieux-Longueuil 3.4 (132 for 38.7), Greenfield Park 3.9 (36 for 9.3).

Condos are living the opposite: active condominium listings rose 32% in Vieux-Longueuil and 52% in Saint-Hubert, where sales fell 44%. The same calculation gives about 5.7 months of inventory in Vieux-Longueuil (221 for 38.7 sales per month) and nearly 7 in Saint-Hubert (137 for 20).

It is in plexes that Longueuil weighs most on the South Shore: in one year, its three boroughs sold 394 of the 678 plexes counted by Centris on the South Shore, or 58%, against 20% of houses. This summer, the Vieux-Longueuil plex nevertheless took 58 days to find a buyer, 12 more than a year earlier: about 5.8 months of inventory (99 active for 17 sales per month).

In Greenfield Park, supply has jumped: 36 houses (+63%) and 33 condominiums (+266%) active, for 28 and 11 sales.

When supply grows, buyers choose, and they set aside what worries them. In 2026, for that same house in Vieux-Longueuil, my seller first wanted to sell without the legal warranty. I asked my questions: nothing justified excluding it. He insisted, and I respected his choice. The offers did not come. He then restored the warranty, and they started coming in. The buyers’ brokers asked us why; the answer fit in one sentence: there was no reason to exclude it. An exclusion can be justified, for example in an estate whose liquidator does not know the house; without a reason, it worries buyers: selling without the legal warranty.

Value by sector in Longueuil

Centris publishes Longueuil as three territories, named after the boroughs, and nothing below that: Le Moyne, the metro sector or Laflèche have no statistics of their own. Over the last four quarters, from October 2025 to September 2026, the medians stand as follows:

Source: the same Centris pages, and Centris for the South Shore of Montreal. The last row covers that whole territory, Brossard and Boucherville included: it is a benchmark, not a Longueuil figure.

Le Vieux-Longueuil

The largest market of the three, with 283 sales last quarter: as many condos as houses, plus 51 plexes. Value there is decided by walking distance to the Longueuil-Université-de-Sherbrooke station, by the age of the components and, for a plex, by the rents in place. The old core is a cited heritage site of more than 950 buildings, according to the City, where exterior work is regulated.

Saint-Hubert

The most single-family of the three, and the most recent: 18% of dwellings date from 2011 or later, against 8% in Vieux-Longueuil and 3% in Greenfield Park. Comparables must therefore be the same age, not only in the same neighbourhood. Near the Saint-Hubert airport, now the MET, noise from the approach corridors enters the comparison, as does the distance to the exo Longueuil-Saint-Hubert station.

Greenfield Park

The smallest, with 17,197 residents at the 2021 census, and the oldest: 76% of its dwellings date from before 1981. Without a quarterly median, comparables are sought over a longer period or in the neighbouring streets, with a written adjustment for each difference. The City’s heritage management framework, dated 2018, subjects exterior modifications there to a PIIA: have the rule for your address confirmed before any facade work.

To go further: my page real estate broker in Longueuil, the Longueuil real estate market by borough and the analyses of Vieux-Longueuil, Saint-Hubert and Greenfield Park.

How it works

1. 1. You enter the address 1 minute

   The form starts with the address. Your expected selling time and your contact details cover the rest; “just exploring” is a valid answer.

2. 2. A ten-minute call Within 24 hours

   I ask the questions the data cannot answer: renovations, known issues, what you plan to do next. If you don’t like the phone, we do it by text.

3. 3. The analysis, at your home or by video On the date that suits you

   I present the comparables, the range and the net amount. A visit makes the analysis more precise, because condition and renovations do not show up in the data. It is not required for a first range.

4. 4. A marketing plan, only if you want one On request

   List price, preparation, timeline, documents to gather. If you don’t ask for it, we stop at step 3.

Municipal assessment, chartered appraiser, online estimator or broker’s analysis: which one do you need?

Why Longueuil’s assessment roll is far from the market price

Longueuil’s roll is valid for 2025, 2026 and 2027, like those of the four other cities in the agglomeration, and its reference date is July 1, 2023 (Loi sur la fiscalité municipale, section 46). Your assessment notice describes the market of that summer.

The Ministère des Affaires municipales measures the gap every year. The median proportion of Longueuil’s roll went from 100% in 2025 to 94% in 2026, then to 89% for 2027: at the midpoint, the values entered on the roll represent 89% of sale prices, a comparative factor of 1.12. A typical house entered on the roll at $500,000 therefore corresponds to a price of around $560,000. This is an overall trend, not a measurement of your address.

The tax bill strays even further from the market: the City phases in the roll increase over three years, one third per year. In its example, a property that went from $390,000 to $540,000 is taxed on $490,000 in 2026.

The next roll, for 2028 to 2030, will have July 1, 2026 as its reference date. Contesting the value used for your taxes is a different process: contesting your municipal assessment. The online estimator gives a ballpark figure based on Centris medians.

Seven mistakes that cost Longueuil sellers dearly

1. Listing above the comparables

With 221 active condominium listings in Vieux-Longueuil and 137 in Saint-Hubert this summer, the buyer compares, sometimes in the same building. The Centris.ca alert reaches them at listing, with the first-day price: that is the price they put next to the neighbouring units.

2. Relying on the borough median

The Vieux-Longueuil median mixes the heritage site, Le Moyne and recent construction; the Greenfield Park median does not even exist for the last quarter. Listing at $625,000 because it is “the neighbourhood price” means forgetting everything that separates your house from that figure.

3. Taking your tax bill for a price

The roll measures July 2023, the Quebec government puts it at 89% of sale prices for 2027, and the City’s phase-in lowers the taxed base further still. Three reasons why that figure, for a typical house, stays below the market price.

4. Starting exterior work without checking the rule

In the cited heritage site of Vieux-Longueuil, repairing a building or modifying its exterior appearance is done on the conditions the council may impose, with at least 45 days’ prior notice (Loi sur le patrimoine culturel, sections 138 and 139). In Greenfield Park, it is a PIIA. Windows changed in a hurry, without authorization, give the buyer one more reason to negotiate.

5. Arriving without the water history

The City’s 2026 budget lists Vieux-Longueuil and Greenfield Park among the boroughs “particularly affected by episodes of heavy rainfall”. The seller’s declaration has you answer about water damage, and the buyer will ask whether there is a backwater valve. An infiltration that was dealt with, invoice and date in hand, reassures; a vague answer worries.

6. Putting a plex up for sale without its leases

The Vieux-Longueuil plex took 58 days on average to sell this summer. Its buyer is buying income: they will want the leases, the rents, the expenses and the rent increase notices, and so will their lender. Gather them before listing: selling a plex.

7. Promising to buy before the condo is sold

A Saint-Hubert condo stayed on the market 45 days on average last quarter, facing 137 active units. Promising to buy a house with no sale condition while counting on selling the condo within a month means betting on an average; if it drags on, you carry two mortgages.

When to sell in Longueuil?

No season raises a price on its own. Two local facts still count.

First, the family calendar: according to the 2021 census, 42% of families in Saint-Hubert and 41% of those in Greenfield Park are couples with children at home. To change schools at the start of the school year, the deed is signed around summer and visits begin months earlier: a family house listed in the spring is on the market when these buyers are visiting.

Then, supply. Active house listings are down in Saint-Hubert (-10%) and up slightly in Vieux-Longueuil (+6%), but active condo listings are rising everywhere, from 32% to 266%: for a condo, no season replaces a fair list price. Selling in winter has its own rules: selling your house in fall or winter.

Your own timeline counts more: a birth, a retirement, plex leases coming to term, a purchase to coordinate. The form offers four horizons: within 3 months, in 3 to 6 months, in 6 to 12 months, or “just exploring”. Six months ahead leaves time to order the certificate, find the invoices and have a heritage rule confirmed.

Selling and buying at the same time in Longueuil

A family short of a bedroom, or a couple whose house has become too big: one person in five is over 65 in Vieux-Longueuil as in Greenfield Park, according to the 2021 census. The risk, in both cases: a sale and a purchase that do not close on the same day.

Four steps, in this order:

1. Know the net amount of your sale first: it, not the listed price, sets your purchase budget.
2. Choose the order: sell firm before promising to buy, or buy on condition of selling. The condition covers you if the sale drags on, but a seller who also receives an offer with no condition will be tempted to prefer it.
3. Negotiate the deed and occupancy dates, which are set separately; a gap of a few days is settled by an occupancy agreed in writing.
4. Confirm the bridge loan with the lender: it covers the interval until you collect the proceeds of your sale, once that sale is firm. The lender sets its conditions; I do not give mortgage advice.

If you buy again in Longueuil, in 2026 the City applies a welcome tax (property transfer duties) of 0.5% on the first $62,900, 1% up to $315,000, 1.5% up to $630,100 and 3% beyond. A $625,000 house thus pays $7,485.50, an $840,000 plex $13,859. The base can be the roll value multiplied by 1.06 if it exceeds the price; your notary confirms the year’s brackets. See the welcome tax in Quebec and selling before buying.