- Average price, Oshawa, all property types
- $653,466As of October 2026.Source
- Median price, Oshawa, all property types
- $623,750As of October 2026.Source
- Average price, Oshawa, January to October 2026
- $698,078As of year to date, October 2026.Source
- Population of Oshawa, and growth since 2016
- 175,383 (up 10.0%)As of 2021 Census.Source
On this page
Oshawa has the lowest average price of the Durham Region municipalities in TRREB’s October 2026 table, so the same percentage move in value means fewer dollars of room.
Oshawa’s $653,466 average and the lowest price in Durham
TRREB’s October 2026 Market Watch lists 152 Oshawa sales at an average of $653,466 and a median of $623,750. For the first ten months of 2026 the average was $698,078 and the median $665,000. Detached homes averaged $705,333 in October with a median of $682,500. Only six condo apartments sold, too few to tell you anything.
Homes sold in an average of 29 days at about 98% of list price, and TRREB’s trend figure is 3.7 months of inventory. Durham Region as a whole averaged $793,024 that month, so Oshawa sits about $140,000 below its region. The FAQ below compares it with Clarington, Pickering, Ajax and Whitby.
A city that grew fast
Oshawa’s 2021 population was 175,383, a 10.0% rise from 159,458 in 2016, against 5.8% for Ontario. The wider Oshawa census metropolitan area had 415,311 people, including 138,501 in Whitby and 101,427 in Clarington. Growth like this means a lot of recent buyers. Recent buyers often have large first mortgages relative to value, because they have had little time to pay down principal.
Room is small when prices are lower
Run the 80% limit that the Financial Consumer Agency of Canada describes on two Oshawa owners. In the first example, a smaller first mortgage leaves $112,773 of room on an average-priced Oshawa home. In the second, a $470,000 balance on a median-priced home leaves $29,000, and the $45,000 wished for is $16,000 beyond it.
The lesson is about proportion. A 5% fall on a $623,750 home is $31,188 of value, and 80% of that is $24,950 of room. That is nearly all the room in the second example. Fall in value matters more when the margin is already thin. Test your own balance on the calculator.
Oshawa inside Durham Region
Oshawa’s 152 sales were about 26% of Durham’s 589 in October 2026. Over the first ten months Oshawa recorded 1,529 sales with a median of $665,000, while Durham’s median was $787,000, a gap of $122,000. A 3.6-month supply across the region and 3.7 in Oshawa mean a market that is neither flooded nor starved.
Owners who bought at higher prices elsewhere in Durham may find their home value has not moved the same way as an Oshawa home’s. Use a figure for your own street.
Costs, taxes and what they do to a small loan
A land transfer tax is charged on a purchase, and we found no such line for registering a second mortgage on a home you own. You will pay the lender’s fee, a broker fee, legal costs, an appraisal and the registration fee, as set out on the Ontario page.
On a smaller loan, fixed costs such as legal fees and the appraisal take a larger share. Before consolidating debt, work out the cost with the consolidation page. If your credit has taken a hit, read second mortgages with bad credit to see how pricing changes.
Arrears and what to do if you are behind
CMHC’s October 27, 2026 release puts Ontario’s arrears rate at 0.32% for the second quarter of 2026, with a rise expected through mid-2027 mostly in the Greater Toronto and Hamilton Area and southwestern Ontario. Oshawa is in Durham Region, part of the GTA. CMHC links some of that pressure to trade tensions affecting manufacturing, automotive included. It gives no Oshawa figure.
If you are already behind on payments, a second mortgage is rarely the first step. Read falling behind on mortgage payments, and speak to your lender or a Licensed Insolvency Trustee first.
Mostly houses
Detached homes were 108 of Oshawa’s 152 sales in October 2026, about 71%, so the all-type average mostly reflects houses. If you own a condo or a townhouse, your own value may sit well below the city average, and the room under a lender’s ceiling will be smaller than the first example suggests.
Naming and checking the licensed person in Oshawa
Anyone offering you a private second mortgage in Ontario should be a Level 2 agent or work for a brokerage, and you can confirm both on the FSRA register before signing a thing.
If the Oshawa numbers above look close to yours, work through your options with a licensed professional. For nearby markets see Markham and Toronto.
An Oshawa owner at the October 2026 average with $410,000 owing
The $653,466 value is TRREB's October 2026 average price for Oshawa, all property types, as a stand-in for an appraisal. The $410,000 first mortgage and $50,000 loan are made up. The 80% ceiling is the one the Financial Consumer Agency of Canada describes.
- Home value used
- $653,466
- 80% of the home value
- $522,773
- Room under the ceiling
- $112,773
- Combined loan-to-value with a $50,000 loan
- 70.4%
- Room left after the $50,000 loan
- $62,773
$653,466 times 0.8, rounded
$522,773 minus $410,000
$460,000 owed on $653,466
An Oshawa owner at the October 2026 median with $470,000 owing
The $623,750 value is TRREB's October 2026 median price for Oshawa, all property types, as a stand-in for an appraisal. The $470,000 first mortgage and $45,000 loan are made up.
- Home value used
- $623,750
- Equity before the loan
- $153,750
- 80% of the home value
- $499,000
- Room under the ceiling
- $29,000
- Combined loan-to-value if the full loan were made
- 82.6%
- Amount the loan exceeds the room by
- $16,000
$623,750 minus $470,000
$623,750 times 0.8
$499,000 minus $470,000
$515,000 owed on $623,750
Questions people ask
How does Oshawa compare with the rest of Durham Region on price?
In October 2026 Oshawa's average of $653,466 was below Clarington's $742,452, Pickering's $821,211, Ajax's $918,704 and Whitby's $876,275. Durham as a whole averaged $793,024. Those are all-type averages from TRREB and may not match your street.
Do thin margins make a second mortgage riskier in Oshawa?
They can. A smaller gap between what you owe and the lender's ceiling means a modest fall in value can wipe out your room, and fees take a bigger share of a smaller loan. Price the total cost, not just the monthly payment.
Did Oshawa's prices rise or fall during 2026?
October's average of $653,466 was below the $698,078 average for the first ten months, according to TRREB. A single month is noisy because the mix of homes sold changes. A fresh appraisal beats any average.
Is a city growing 10% in five years good for my home's value?
It can mean more buyers, but it is not a guarantee. Oshawa grew 10.0% between the 2016 and 2021 censuses, and lenders will still value your property from recent comparable sales, not from population counts.