Houses for Sale in Newmarket ON Under $300K

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Are you looking for houses under $300k for sale in Newmarket ON? Square Yards Canada offers a wide selection of properties that cater to various budgets in Newmarket. Browse through detailed listings with HD images and guides to find the ideal property that fits your budget and preferences in Newmarket. Whether you’re looking to buy houses under under $300k in Newmarket 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 Newmarket houses for sale under under $300k, including freehold homes, condos, and commercial properties.

Last Updated: November 11, 2026

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190 Charlotte Street S, York, ON , MLS #N13728806 , Image - 1

190 Charlotte Street S Gorham-College Manor, Newmarket, York, ON MLS® N13728806

Residential Freehold (Vacant Land)

$299900.0

Build the custom home you've always imagined -- in the heart of downtown Newmarket. This rare, approved building lot puts you steps from historic Main

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3 Photos

27 Thompson Drive, York, ON , MLS #N14123764 , Image - 1

27 Thompson Drive Sutton & Jackson's Point, Georgina, York, ON MLS® N14123764

Residential Freehold (Vacant Land)

$249000.0

Price drop by 12.9%

Rare opportunity in the heart of Jackson's Point. This newly severed lot offers an exceptional opportunity to build your custom dream home in a desira

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52 PINERY Lane, York, ON , MLS #N14123766 , Image - 1

52 PINERY Lane Sutton & Jackson's Point, Georgina, York, ON MLS® N14123766

Residential Freehold (Vacant Land)

$234000.0

Price drop by 12.7%

Rare opportunity in the heart of Jackson's Point. This newly severed corner lot offers an exceptional opportunity to build your custom dream home in a

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5007 19th Avenue Rural Markham, Markham, York, ON MLS® N14162384

Residential Freehold (Farm)

Price On Request

3 Beds
2 Baths
1100-1500 sq-ft

Rare 11.35 Acre Property-Exceptional Opportunity! A unique opportunity to own 11.35 acres of land featuring a bungalow that is currently rented, provi

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11450 Kennedy Road, York, ON , MLS #N14162352 , Image - 1

11450 Kennedy Road Rural Markham, Markham, York, ON MLS® N14162352

Residential Freehold (Vacant Land)

Price On Request

Prime 12.94 Acre Land Opportunity!! An exceptional opportunity to aquire 12.94 acres of strategically located vacant land, positioned in a highly desi

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