$899,900 - 390 Mary Street, Oshawa
Detached for Sale in Oshawa
New — Listed yesterdayNeighbourhood: O'Neill
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- MLS Number
- E14101730
- Property Type
- Detached
- Status
- active
- Days on Site
- 1
- Bedrooms
- 6
- Bathrooms
- 3
- Square Feet
- 1,500 - 1,999 sqft
- Neighbourhood
- Oshawa
- Taxes (2026)
- $7,766
- Listing Brokerage
- RE/MAX Jazz INC.
Welcome to this beautifully updated 2 1/2-storey home, ideally situated in a fabulous area of tree-lined streets and well within excellent school districts! Offering a versatile layout with plenty of space for the whole family, the main and second floor of this home features an eat-in kitchen, 2 bedrooms and 2 full bathrooms, along with a finished basement providing even more room for guests/ teens, entertain, or work from home. One of the home's standout features is the amazing second suite spanning the back of the second and all of the third floors, offering an open-concept kitchen and living room with an electric fireplace, it's own washer & dryer, 2 more bedrooms and a full bathroom. Perfect for extended family, multi-generational living, guests, or added flexibility to suit your needs. Outside, enjoy a large lot with plenty of room to play, entertain, or simply unwind. Perfect area for kids to safely play street hockey, basketball, etc. and the little ones to ride their bikes! The oversized 2-car garage provides exceptional space for parking, storage, hobbies, and more. With its updated finishes, flexible living space, bright second suite, generous lot, and sought-after location close to great schools and everyday amenities, this home offers a wonderful combination of comfort, convenience, and versatility. A fantastic opportunity for families looking for room to grow and space for everyone! Two electrical panels, two hot water tanks. The two rooms in the basement are presently being used as bedrooms with large windows but no closets. Two separate units, there is no access to the second suite from the main house. Would suit families with out of town students looking to share a house or out of town hospital or court staff. Easy walk to downtown campuses and Lakeridge Health. Updated and move in ready. Includes 2 fridges, 2 stoves, 2 B/I microwaves, 2 dishwashers, 2 washers & 2 dryers.
Estimate your monthly payments for this property
Estimated Payment
$4,616.95/mo
Includes CMHC insurance ($25,107)
5-yr fixed avg.
Rates shown are estimates based on typical Ontario 5-year fixed rates. Canadian mortgages use semi-annual compounding as required by law. CMHC insurance applies to purchases under $1.5M with less than 20% down. Estimated property tax uses an approximate 0.85% rate. Contact us for current rate options and pre-approval.
Discover O'Neill
O'Neill is a vibrant community in the Greater Toronto Area, offering excellent amenities, schools, and transportation options. This area is popular with families and professionals seeking a balanced lifestyle with access to urban conveniences and natural spaces.
Why Live in O'Neill
- •Convenient location in Oshawa
- •Access to local shops and dining
- •Good public transit connections
- •Community parks and green spaces
- •Well-maintained neighbourhoods
Nearby Schools
Transit & Commuting
- •MiWay bus routes throughout the area
- •GO Transit stations within driving distance
- •Easy highway access to 401/403/QEW
- •Walking distance to local amenities
Parks & Amenities
- •Local parks and recreational facilities
- •Community centres
- •Shopping plazas nearby
- •Restaurants and cafes
Lifestyle & Community
O'Neill offers a wonderful quality of life with a mix of residential charm and urban convenience. Residents enjoy easy access to schools, parks, and shopping, making it an ideal location for families and professionals alike.
390 Mary Street, Oshawa
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Note: These are estimates only. Actual figures may vary based on market conditions, property condition, and other factors. Consult with a financial advisor for personalized advice.

Joe's Thoughts
Honest perspective from 30+ years of GTA real estate experience
Competitive Pricing
At $600/sqft, this is priced below the area average. This could represent genuine value, but let's investigate why. In my experience, underpriced homes often have deferred maintenance, unfavourable layouts, or motivated sellers. I'll help you determine which it is.
Just Listed - Act Strategically
This property hit the market within the last week. In Oshawa's current market, desirable homes often receive multiple offers within 5-7 days. If you're seriously interested, I recommend booking a showing immediately. However, never let urgency override due diligence - we'll still do proper inspections.
Detached Home Advantages
Detached homes in Oshawa are increasingly scarce and valuable. You'll have no shared walls, full control over renovations, and typically stronger appreciation. Consider the lot size and potential for future additions or basement apartment income. Detached homes also offer the most flexibility for growing families.
Excellent Flexibility
With 6 bedrooms, you have genuine flexibility. Beyond the master and kids' rooms, you can have a dedicated home office, guest room, hobby space, or even rental income potential. In today's work-from-home era, extra bedrooms add significant value. Properties with 5+ bedrooms are relatively rare in Oshawa.
Bathroom Count Matters
With 3 bathrooms, morning routines are much smoother. Multiple bathrooms significantly improve daily livability and are a major selling point for resale. Buyers consistently pay more for adequate bathroom counts - this is a strong feature.
About O'Neill
I know O'Neill well from working with many buyers and sellers here. Each pocket has its own character - let me share what I've learned about this specific street and block. During our showing, I'll point out local amenities, school catchments, and what similar homes have sold for recently.













































