Market Analysis

Terrebonne, Lachenaie and La Plaine Real Estate Market: Q3 2026

By Georges Matar · October 21, 2026 · 9 min read

In the third quarter of 2026, Centris counted 319 residential sales in Terrebonne, spread across its three sectors: close to one sale in five in the Lanaudière region. Sales fell in the Terrebonne sector and in Lachenaie, but rose in La Plaine, where the number of single-family homes for sale nearly doubled in a year. Here are the figures by property category, and the City rules that weigh on a transaction.

The Terrebonne real estate market by the numbers

Centris does not publish a page for the city as a whole: it divides it into three sectors, Terrebonne, Lachenaie and La Plaine. In parentheses, the change compared with the third quarter of 2025, in days for the selling time.

Single-family homes, which account for seven sales in ten in the city.

Sector	Sales	Median price	Days on market	Active listings
Terrebonne	107 (-25%)	$632,500 (+5%)	37 (+8)	138 (+28%)
Lachenaie	63 (-20%)	$695,000 (+4%)	34 (+5)	66 (+13%)
La Plaine	56 (+21%)	$520,000 (+3%)	31 (+4)	74 (+94%)

Source: Centris real estate statistics for Terrebonne (Terrebonne), Terrebonne (Lachenaie) and Terrebonne (La Plaine), third quarter of 2026, meaning July to September.

Condominiums. Only the Terrebonne sector has enough sales in the quarter for a median price. Elsewhere, Centris displays “Insufficient number of transactions to produce reliable statistics”: the columns on the right therefore cover the last four quarters.

Sector	Quarter sales	Quarter median price	Sales, 4 quarters	Median price, 4 quarters
Terrebonne	42 (+16%)	$442,000 (+4%)	167 (-28%)	$398,687 (-1%)
Lachenaie	27	not published	129 (-8%)	$377,125 (0%)
La Plaine	11	not published	62 (+10%)	$333,000 (+1%)

Source: same Centris pages, third quarter of 2026 and the total for the last four quarters.

Plexes of 2 to 5 units. No quarterly median price, in any of the three sectors.

Sector	Quarter sales	Sales, 4 quarters	Median price, 4 quarters
Terrebonne	11	48 (-14%)	$754,640 (+1%)
Lachenaie	0	7	not published
La Plaine	2	12	not published

Source: same Centris pages, third quarter of 2026 and the total for the last four quarters.

Three sectors compared, and against Lanaudière

Prices. For Lanaudière as a whole, Centris puts the single-family median price at $518,250 for the quarter (+4%). La Plaine is practically at that level; the Terrebonne sector exceeds it by $114,250, Lachenaie by $176,750. Over four quarters, the order holds: $670,725 in Lachenaie, $615,437 in the Terrebonne sector, $519,062 in La Plaine and $519,312 in the region. A median price up 5% does not mean that every house is worth 5% more: the sample of homes sold changes from one quarter to the next.

Condos and plexes. Over four quarters, the condo median in the Terrebonne sector ($398,687) and in Lachenaie ($377,125) is above the regional median of $356,437; La Plaine ($333,000) stays below it. The Terrebonne sector’s plex median, at $754,640, is above the region’s $657,725.

Selling time. Single-family homes sold in 31 to 37 days on average, depending on the sector, against 43 in Lanaudière.

What changed in a year

Across Lanaudière, Centris counts 1,628 residential sales in the quarter (-10%) and 22% more active listings than a year earlier. For the North Shore of the metropolitan area, APCIQ wrote on October 14 that sellers keep the upper hand, for single-family homes and condos alike.

Two sectors are selling less. Over four quarters, the Terrebonne sector totals 713 residential sales (-17%) and Lachenaie 422 (-13%). La Plaine is the only one up, at 344 (+8%).

Supply is growing, especially in La Plaine. New listings there jumped 45% and active listings, all categories combined, 74%. The Terrebonne sector follows, at +22% for both. Lachenaie is the exception: fewer new listings (-6%) and inventory up 9%.

Selling times are getting a little longer: 4 to 8 more days for single-family homes, for the quarter.

What is moving in Terrebonne

Up to 1,300 housing units near montée des Pionniers

On September 15, 2026, council adopted second draft by-law 1001-379, tied to the District Union project. It targets two zones on rue Yves-Blais, at montée des Pionniers and avenue de la Croisée. In zone 0465-54, it allows up to 500 housing units per lot, with a maximum of 1,300 for the whole zone. Its preamble describes a site served by a train station. According to the City’s certificate of September 30, no request for a referendum was received. Final adoption was on the agenda of the October 13 council meeting. As of October 21, neither the minutes of that meeting nor a notice of promulgation is online.

In Lachenaie, by-law 1001-374 has been in force since April 8, 2026. On the site of the former racetrack, in the area of rues Sarrazin and Saguenay, it allows low and medium density residential uses.

In practice. The use of a neighbouring lot can be changed by by-law: before making an offer, read the zoning grid around the address and the City’s public notices.

Fewer housing starts, more vacant units

From January to September 2026, CMHC counted 208 housing starts in Terrebonne, against 662 a year earlier. The gap comes from apartments: 107 against 585, while single-detached houses went from 43 to 63. CMHC does not give the reason. The city’s rental vacancy rate was 4.6% in October 2025, with a data quality rating of d, “Fair (Use with Caution)”, against 2.9% for the metropolitan area; the 2024 value is suppressed.

The Urbanova interchange and the train

The Ministère des Transports et de la Mobilité durable (Quebec’s transport ministry) includes in its 2026-2028 list an interchange worth more than $50 million on Highway 640, at avenue Urbanova, with work planned in 2026-2027 and 2027-2028. No notice of the start of construction was found. The exo line 15 train stops at Terrebonne station, in fare zone C, with 8 departures in each direction on weekdays and none on weekends. No official source measures the effect of these projects on prices.

Local rules to check before you sign

The welcome tax. In 2026, Terrebonne applies 3% to the portion above $500,000, the maximum that the Act respecting duties on transfers of immovables allows outside Montreal. All three single-family median prices for the quarter are above that threshold. For a $585,000 property, the City calculates $8,160.50 in duties, including $2,550 for the $85,000 above the threshold, and warns that the bill currently arrives 3 to 6 months later. The transfer duties calculator puts a number on your case before the offer.

An assessment roll phased in over three years. The 2026-2027-2028 roll reflects the market as of July 1, 2024. The 2026 bill uses the 2025 value plus one third of the difference, then another third is added in 2027 and again in 2028. According to the 2026 budget, the average house is worth $573,987 on the new roll, while the average house’s bill, $3,830.52 in 2026, is calculated on $499,796. A property’s latest tax bill therefore does not show its full roll value: ask for that value.

The right of pre-emption. Since 2022, the Cities and Towns Act has allowed a municipality to buy on a priority basis an immovable covered by a notice of subjection (avis d’assujettissement) registered in the Registre foncier (Quebec’s land register). Terrebonne’s by-law 870 lists the lots concerned one by one, notably in Vieux-Terrebonne, for social or affordable housing, parks or a land reserve. Once the conditions of the promesse d’achat (promise to purchase) are fulfilled, the seller of such a lot must give notice of the intention to alienate, failing which the sale is null. The City has 60 days to decide; its silence amounts to a waiver. If it buys, it reimburses the displaced buyer’s reasonable negotiation expenses. Build this period into the occupancy date.

The river. The City still presents the flood zone maps of the Communauté métropolitaine de Montréal (CMM) as preliminary, not in force. On July 30, 2026, the CMM asked Quebec’s environment ministry to reverse the postponement, to an undetermined date, of their first batch, which covers the area along the Rivière des Mille Îles. The Mascouche River is among the 14 bodies of water mapped, but it is not named in that first batch. Until then, the CMM points out, the old-generation maps remain fully valid. For a riverside address, the classification can therefore change after the purchase: see how to buy in a flood zone in Quebec.

Selling in Terrebonne

In the Terrebonne sector, a single-family seller faces 138 active listings (+28%), while sales fell 25%. The quarter’s median, $632,500, is above the four-quarter median of $615,437. To place a specific house, see how to audit real estate comparables.

In La Plaine, the competition nearly doubled, to 74 single-family homes listed, even though sales rose 21%. The sector’s median price, $520,000, is still $175,000 below Lachenaie’s: comparable sales are found in La Plaine itself.

Buying in one of the three sectors

The choice. More homes for sale does not mean a buyer’s market. APCIQ’s barometer groups Terrebonne, Lachenaie and La Plaine with Bois-des-Filion and Sainte-Anne-des-Plaines in its sector 29. Over the 12 months ending in September 2026, it counts 2.3 months of inventory for single-family homes from $440,000 to $730,000, 4.0 months from $730,000 to $870,000 and 6.2 months above that. Every range is classified “Seller”: APCIQ places a balanced market between 8 and 10 months.

The budget. Add the transfer duties, at 3% on the portion above $500,000, and a taxable value that phases in the roll difference by thirds until 2028, then have your mortgage broker validate the whole picture before the offer.

The address. Check the land register for a pre-emption notice, the flood zone map, and the zoning of neighbouring lots.

Frequently asked questions

Can the zoning change next to the house I am buying? Yes, by council by-law. By-law 1001-374, on Lachenaie’s former racetrack, went through a public consultation on February 11, 2026, then a public notice opening the period for referendum requests, before coming into force on April 8. These steps are announced in the City’s public notices.

Will my tax bill go up in 2027? The taxable base takes in another third of the roll difference in 2027, but the City sets its rates again every year. The 2027 bill can only be calculated once the budget is adopted.

How do I find out whether a house is subject to the right of pre-emption? The notice of subjection is registered in the land register and is valid for no more than 10 years. By-law 870 lists the lots concerned. Ask the notary to check before setting the dates.

To go further, read the Lanaudière real estate market, sector by sector, how to compare two North Shore sectors and the welcome tax in Quebec.

Selling or buying in Terrebonne, Lachenaie or La Plaine? Write to me. I compare your address with recent sales in its sector, in French, English or Arabic.