Old South, Sarnia - October 2026 Real Estate Report
Old South, Sarnia: Your Neighbour Just Texted You This
If you own a place in Old South and you haven't checked your actual market value lately, now is the time. The city's assessment is sitting in a drawer somewhere collecting dust. The real numbers are moving right now - and depending on whether you own a house or a condo, the story is very different.
The Vibe: Houses vs. Condos in Old South
Let's break it down for us locals, because these two property types are telling two completely different stories right now.
Houses
If you've been watching the "For Sale" signs on the residential streets of Old South, here's what's actually happening. The average HonestDoor Price for a house sits at $343,870, with a predicted market value of $344,391. That predicted value is climbing - it's up from a 3-month moving average of $338,555, which tells us momentum is building quietly.
- Average HonestDoor Price: $343,870 (down 0.15% from last period - basically flat)
- Predicted Market Value: $344,391
- 3-Month Moving Average: $338,555 - trending upward
- Recent Value Change: 2.47%
- Neighbourhood Growth Rank: 11 out of 19 in Sarnia - middle of the pack
- Average Rental Estimate: $1,812 per month
- Rental Yield: 5.92% - that's a strong return for landlords
- Airbnb Estimate: $90 per night (Airbnb rank 18 in Sarnia)
A 5.92% rental yield is genuinely solid. If you're an investor or thinking about renting your place out, Old South houses are pulling real income. The growth rank of 11 out of 19 means we're not leading the city, but we're not falling behind either. Think of it as steady - not flashy, but reliable.
How do we stack up against the neighbours? Coronation Park houses average $408,092 and Downtown-Central sits at $408,834. Cardiff Acres comes in cheaper at $324,218. Old South is priced right in the middle - accessible without being the cheapest option on the block.
Condos
Here's where things get interesting. Old South condos are the number one growth performer in all of Sarnia right now. That's not a typo.
- Average HonestDoor Price: $330,121 (down 8.35% from last period - worth watching)
- Predicted Market Value: $360,198
- 3-Month Moving Average: $353,668 - trending upward
- Recent Value Change: 5.56%
- Neighbourhood Growth Rank: 1 out of 19 in Sarnia - top of the leaderboard
- Average Rental Estimate: $1,669 per month
- Rental Yield: 4.12% - moderate but consistent
- Airbnb Estimate: $83 per night (Airbnb rank 1 in Sarnia)
That 8.35% dip in the average HonestDoor Price sounds alarming at first glance. But the predicted market value of $360,198 is actually sitting well above the 3-month average of $353,668. The short-term dip and the upward trajectory are happening at the same time - which usually signals a correction before a climb. The number that really matters here is that growth rank: first place out of 19 neighbourhoods. Old South condos are outpacing everyone else in the city.
On the Airbnb side, Old South condos rank first in Sarnia for short-term rental potential. If you're sitting on a condo here and not thinking about your options, you're leaving money on the table.
Compared to nearby condo markets, Old South is actually priced higher than Coronation Park ($263,824), Cardiff Acres ($264,333), and Downtown-Central ($304,897). That premium reflects what buyers are willing to pay to be here.
The Secret Sauce: Why Your HonestDoor Price Matters More Than Your Tax Assessment Right Now
Here's the thing about your city assessment - it's a snapshot from the past. It doesn't know what happened to the market last quarter. It doesn't know that Old South condos just ranked first in Sarnia for growth. It's a static number doing a real-time job, and it's not built for that.
The HonestDoor Price is updated continuously using real transaction data and current market signals. For a house owner in Old South, that means knowing your home is tracking at $344,391 right now - not what the city guessed it was worth 18 months ago. For a condo owner, it means understanding that your property is sitting in the top growth neighbourhood in the city, even if your assessment doesn't reflect that yet.
If you're making any financial decision - refinancing, selling, even just figuring out if your insurance coverage makes sense - use the HonestDoor Price as your real-world check. The assessment is for tax purposes. The HonestDoor Price is for reality.
The "So What?" - Thinking About Selling This Summer?
Summer is when buyers actually show up in Sarnia. So here's the straight talk on what these numbers mean if you're thinking about listing.
If you own a house in Old South, you're in a stable position. Values are trending upward from the 3-month average, the rental yield is strong enough that buyers who want income properties will look at your place seriously, and you're priced below Coronation Park and Downtown-Central - which means you're competitive. A 2.47% recent value change is modest, but it's movement in the right direction heading into selling season.
If you own a condo in Old South, the case for selling this summer is stronger. You're in the number one growth neighbourhood in Sarnia. Your predicted value of $360,198 is above the recent moving average, which means the market is pricing condos here with confidence. The short-term HonestDoor Price dip of 8.35% is worth monitoring, but the trajectory and the rank tell a more optimistic story. Buyers who do their homework will see what we see.
Either way - house or condo - the move right now is to check your HonestDoor Price before you do anything else. It takes two minutes and it gives you a number that's actually based on today's market. That's the starting point for every smart conversation with your agent this summer.
old south | sarnia | october 2026This 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.