Houses for Sale in St. Marys ON Under $1 Million

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Are you looking for houses under $1m for sale in St. Marys ON? Square Yards Canada offers a wide selection of properties that cater to various budgets in St. Marys. Browse through detailed listings with HD images and guides to find the ideal property that fits your budget and preferences in St. Marys. Whether you’re looking to buy houses under under $1m in St. Marys ON for residential living or as investment opportunities, our listings allow you to filter by amenities, property age, number of bedrooms and much more. Explore a diverse range of St. Marys houses for sale under under $1m, including freehold homes, condos, and commercial properties.

Last Updated: March 29, 2026

6 Photos

428 Queen Street W, Perth, ON , MLS #X12403971 , Image - 1

Unit-#5, 428 Queen Street W St. Marys, Perth, ON MLS® X12403971

Residential Condo & Other (Condo Townhouse)

$379900.0

Price drop by 5.0%

2 Beds
1 Baths
800-899 sq-ft

Pol Quality Homes is thrilled to announce the launch of a new condominium project in St. Marys, ON. This development features beautifully designed one

7 Photos

428 Queen Street W, Perth, ON , MLS #X12403980 , Image - 1

Unit-#3, 428 Queen Street W St. Marys, Perth, ON MLS® X12403980

Residential Condo & Other (Condo Townhouse)

$359900.0

Price drop by 2.7%

2 Beds
1 Baths
700-799 sq-ft

Pol Quality Homes is thrilled to announce the launch of a new condominium project in St. Marys, ON. This development features beautifully designed one