De Lang, Châteauguay - August 2026 Real Estate Report

De Lang, Chateauguay: Your Neighbour Just Got a Better Price Than the City Thinks

If you own a home or condo in De Lang and you're still relying on your municipal assessment to know what your place is worth - stop. That number is already old. Here's what's actually happening on the ground right now.

The Vibe: Houses vs. Condos in De Lang

We're seeing two different stories play out in De Lang depending on what you own. Let's break it down.

Houses

• Average HonestDoor Price: $563,449 - up 1.73% from the previous period
• Average sale price: $520,000
• Price per square foot: $398
• Predicted market value: $553,888
• 3-month moving average: $558,068 (values are dipping slightly)
• Estimated monthly rent: $2,720 - $2,758
• Rental yield: 5.55% - that is a strong return
• Airbnb rank in Chateauguay: 3rd out of comparable neighbourhoods
• Neighbourhood leaderboard - Growth rank: 7 out of 8
• Neighbourhood leaderboard - Price rank: 5 out of 6 (one of the more affordable spots in the city)

Straight talk: house values in De Lang are taking a breather. The predicted value has slipped 1.25% recently and sits below the 3-month moving average. We are not in freefall - but the momentum has cooled. The silver lining? If you are a buyer, De Lang houses are among the most affordable in Chateauguay. If you are a seller, timing matters more right now than it did six months ago.

The rental story is genuinely good though. A 5.55% rental yield is not something you see everywhere. For investors in our neighbourhood, that number is worth paying attention to.

Condos

• Average HonestDoor Price: $380,117 - up 2.68% from the previous period
• Predicted market value: $370,190
• 3-month moving average: $376,978 (also trending down slightly)
• Estimated monthly rent: $1,948 - $1,995
• Rental yield: 4.08% - moderate but steady
• Airbnb rank in Chateauguay: 4th
• Neighbourhood leaderboard - Growth rank: 6 out of 8

Condo values have pulled back 3.42% recently and sit below nearby De Salaberry ($390,429) and De La Noue ($420,133). We are not the top of the leaderboard here - that is just the honest picture. But the HonestDoor Price is still up 2.68% overall, which tells us the longer view is more stable than the short-term dip suggests.

The Secret Sauce: Why Your HonestDoor Price Matters More Than Your Tax Bill

Here is the thing about municipal assessments - they are a snapshot from the past. The city looks at sales data from a window that can be 12 to 24 months old, then freezes that number for years. A lot can change in a year. It already has.

The HonestDoor Price is updated in real time using current sales, market trends, and comparable properties. For a De Lang house owner, that means the difference between a $520,000 sale price and a $563,449 HonestDoor Price is real money sitting on the table - money your tax assessment is not showing you. Think of it as the real-world check your assessment never was.

Whether you are refinancing, selling, or just curious what your place is actually worth today - the HonestDoor Price is the number to start with.

The So What: Thinking About Selling This Summer?

Here is the honest read for De Lang homeowners heading into summer selling season.

• House values are softening short-term but the HonestDoor Price is still up 1.73% - you have not lost ground overall
• With only 1 house sold recently, inventory is thin - that can work in your favour if you price right
• Condo sellers face a bit more headwind with a -3.42% recent shift and below-average growth ranking
• Rental demand is real - if selling is not urgent, holding and renting at $2,720 to $2,758 per month for a house is a legitimate play
• De Lang is one of the more affordable pockets in Chateauguay - lean into that when marketing to buyers priced out of De La Noue or De Salaberry

Bottom line: De Lang is not the hottest neighbourhood on the Chateauguay leaderboard right now - but it is not broken either. If you are selling this summer, price it sharp, know your real number, and do not let an outdated assessment set your expectations. Check your HonestDoor Price first. That is where the conversation starts.

This information is all based on our opinions based on the information available to us. Everyone's situation may be different and you should reach out to us for more personalized information.