Houses for Sale in St. Marys ON Under $700K

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Are you looking for houses under $700k 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 $700k 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 $700k, including freehold homes, condos, and commercial properties.

Last Updated: May 14, 2026

38 Photos

255 Water Street S, Perth, ON , MLS #X13079208 , Image - 1

255 Water Street S St. Marys, Perth, ON MLS® X13079208

Residential Freehold (Detached)

$679900.0

3 Beds
3 Baths
1500-2000 sq-ft

Welcome to 255 Water Street South, a well-maintained two-storey home in one of St. Marys' most walkable and scenic locations. Built in 2004, this invi

2 Photos

165 Egan Avenue, Perth, ON , MLS #X13031322 , Image - 1

Unit-7, 165 Egan Avenue St. Marys, Perth, ON MLS® X13031322

Residential Condo & Other (Vacant Land Condo)

$549900.0

2 +1 Beds
3 Baths
1000-1199 sq-ft

Welcome to Unit 7 at 165 Egan Avenue in St. Marys. This well-finished bungalow offers 2+1 bedrooms, 3 bathrooms, and a functional layout that works eq

18 Photos

86 Salina Street N, Perth, ON , MLS #X12199738 , Image - 1

86 Salina Street N St. Marys, Perth, ON MLS® X12199738

Residential Freehold (Detached)

$425000.0

Price drop by 10.5%

3 Beds
1 Baths
1100-1500 sq-ft

Opportunity knocks! Situated on an expansive 116.7' x 118' lot, this property offers excellent potential for development in a mature and sought-after

50 Photos

130 Wellington Street S, Perth, ON , MLS #X12961198 , Image - 1

130 Wellington Street S St. Marys, Perth, ON MLS® X12961198

Residential Freehold (Detached)

$579900.0

3 Beds
1 Baths
1100-1500 sq-ft

Charming Ontario Cottage Steps from Downtown St. Marys Welcome to 130 Wellington Street South - an immaculate red brick Ontario cottage that perfectly

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43 Photos

246 Wellington Street, Perth, ON , MLS #X13127950 , Image - 1

246 Wellington Street Stratford, Perth, ON MLS® X13127950

Residential Freehold (Detached)

$550000.0

2 Beds
2 Baths
1100-1500 sq-ft

Timeless 1883 Yellow Brick Elegance in the Heart of Stratford..Step back in time without sacrificing a single modern luxury. This iconic 1883Ontario C

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