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342 Mary Street N
O'Neill Oshawa L1G 5C8

$449,000
Residential Freehold beds: 2 baths: 2.0

Main Photo: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 1: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 2: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 3: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 4: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 5: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 6: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Photo 7: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
Status:
Active
Prop. Type:
Residential Freehold
MLS® Num:
E14107444
Bedrooms:
2
Bathrooms:
2
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 Type:
Residential Freehold
Property Sub Type:
Detached
Home Style:
1 1/2 Storey
Total Approx Floor Area:
3000-3500
Lot Depth:
142'4"
Lot Frontage:
52'1"
Direction Faces:
West
Bedrooms:
2
Bathrooms:
2.0
Water supply:
Municipal
Kitchens:
1
Bedrooms Above Grade:
2
Kitchens Above Grade:
1
Rooms Above Grade:
6
Heating type:
Forced Air
Heating Fuel:
Gas
Foundation:
Concrete
Roof:
Shingles
Basement:
Unfinished
Fireplace/Stove:
No
Garage:
Attached
Garage Spaces:
1.0
Parking Features:
Private
Parking Spaces:
4
Total Parking Spaces:
5.0
Family Room:
No
Possession Details:
Flexible
Pool:
None
Link:
No
HST Applicable To Sale Price:
Included In
Taxes:
$6,584.93 / 2026
Assessment:
$- / -
Durham
Oshawa
O'Neill
Other
Furnace, AC, Air Cleaner, Humidifier and Thermostat for $181.55 per month with Reliance Home Comfort
This property is being sold AS IS WHERE IS.
Boat
Brick Front
Floor
Type
Size
Other
Main
Kitchen
18'1" × 9'5¾"
Window, Open Concept
Main
Living Room
13' × 12'8¾"
Window, Open Concept
Main
Dining Room
12'1" × 11'5"
Window, Open Concept
Upper
Primary Bedroom
15'11" × 10'7"
His and Hers Closets, Window, Broadloom
Upper
Bedroom 2
10'6" × 8'3¼"
Window, Closet, Broadloom
Special Designation:
Unknown
Sewers:
Sewer
Air Conditioning:
Central Air
Central Vacuum:
No
Seller Property Info Statement:
No
Date Listed:
Oct 22, 2026
Original Price:
Previous Price:
  • Photo 1: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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  • Photo 2: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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  • Photo 3: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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  • Photo 4: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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  • Photo 5: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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  • Photo 6: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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  • Photo 7: 342 Mary Street N in Oshawa: O'Neill House for sale : MLS®# E14107444
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Listed by Keller Williams Energy Real Estate
Data was last updated October 22, 2026 at 07:15 PM (UTC)
Area Statistics
Listings on market:
44
Avg list price:
$699,000
Min list price:
$439,900
Max list price:
$929,000
Avg days on market:
17
Min days on market:
1
Max days on market:
118
These statistics are generated based on the current listing's property type and located in O'Neill. Average values are derived using median calculations. This data is not produced by the MLS® system.
This website may only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate of the type being offered via the website. The data relating to real estate on this website comes in part from the MLS® Reciprocity program of the PropTx MLS®. The data is deemed reliable but is not guaranteed to be accurate.