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Detached for sale at 342 Mary Street N, Oshawa - 2 bedroom, 2 bathroom - Photo 1 of 7
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$449,000

342 Mary St N

Oshawa, ON L1G 5C8

342 Mary St N, Oshawa — Listed at $449,000. 2 bedroom, 2 bathroom 1 1/2 Storey Detached. MLS® E14107444.

Possession · seller's timeline

Flexible

2Beds
2Baths
3000-3500sqft
Detached
1 1/2 Storey
5Parking
$6,584.93Taxes/yr · 2026
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Description

Attention contractors, builders, and savvy investors! This detached two-storey home offers over 3,000 sq. ft. of space and endless potential for those looking to renovate, reimagine, or explore future development possibilities. Situated on a great-sized lot in the established community of O'Neil, this property is zoned R5-A, with potential for a fourplex development, subject to buyer due diligence and all applicable municipal approvals. Conveniently located close to schools, community centres, everyday amenities, and more, this is an exciting opportunity to unlock the full potential of a property in a desirable Oshawa location. Property is being sold AS IS, WHERE IS. Bring your vision, creativity, and plans to make the most of this unique opportunity!

Property Details

Property TypeDetached
Style1 1/2 Storey
CommunityO'Neill
Rooms6
Kitchens1
Washrooms2
Square Feet3000-3500 sqft
Lot Dimensions52.11 × 142.31 ft
Fronting OnWest
Dir/Cross StMary St N & Rosedale Ave
Garage TypeAttached
Garage Parking Spaces1
DrivePrivate
Parking Drive Spaces4
Total Parking Spaces5
ExteriorBrick Front
RoofShingles
FoundationConcrete
BasementUnfinished
Heating TypeForced Air
Heating SourceGas
A/CCentral Air
SewersSewer
Taxes (2026)$6,584.93
HSTIncluded In
Listed Date10/22/2026
Days on Market21 days
PossessionFlexible

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Listing Courtesy of: Keller Williams Energy Real Estate

MLS® #E14107444

TRREBMLS®

The listing data is provided under copyright by the Toronto Regional Real Estate Board (TRREB). The listing data is deemed reliable but is not guaranteed accurate by TRREB. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by The Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The trademarks MLS®, Multiple Listing Service® and the associated logos are owned by CREA and identify the quality of services provided by real estate professionals who are members of CREA. Used under license.

© 2026 Toronto Regional Real Estate Board. All rights reserved.

HouseIndex Take: 342 Mary Street N

This detached (1 1/2 Storey) is located in the O'Neill neighbourhood of Oshawa.

The home offers 2 bedrooms, 2 bathrooms.

Features include a unfinished basement, 5 parking spaces including a 1-car garage.

Additional details: lot dimensions of 52.11 × 142.31 feet.

Listed at $449,000 CAD with annual property taxes of $6,584.93 (2026).

About Oshawa Real Estate

This Detached is located in the O'Neill community in Oshawa. Oshawa is Durham Region's largest city and home to Ontario Tech University and Durham College. The city offers the GTA's most affordable detached homes with GO Transit connectivity to downtown Toronto. The Oshawa Centre, revitalized downtown core, and Lakeview Park provide amenities, while the 401/407 interchange ensures highway access. Detached homes in Oshawa are in high demand among families seeking space, privacy, and long-term equity growth.

Most affordable GTA detached homesOntario Tech University & Durham CollegeOshawa GO — 60 min to UnionLakeview Park & waterfront trail
~60 min commute to downtown TorontoWalkability: Moderate near downtown — car-oriented suburbs