
300 William Street E
Oshawa (O'Neill), ON L1G 1K8
- 3+1Bedrooms
- 3Bathrooms
- 1Garage
- 1500–2000Sq Ft
- $4,639Tax
- 40×217 ftLot Size
- Estimated Value:$763,500See Free Estimate Report

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Free Home EvaluationHow Much Is My Home Worth?Homes for Sale NearbySale & Price History for 300 William Street E, Oshawa, O'Neill
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About 300 William Street E, Oshawa, O'Neill
Welcome home to this stunning detached 3+1 bedroom, 3 bath home in the highly sought-after O'Neill neighbourhood - a perfect blend of charm, comfort, and lifestyle. Step outside and discover your very own backyard paradise: a resort-like retreat with a sparkling pool (fenced for safety), a cabana with hydro, spacious decking, and a cozy fire pitperfect for making the most of warm summer nights. With a 216 ft deep lot (59 ft at the rear!), you'll have all the space you could ever want for entertaining or relaxing. Inside, the main floor impresses with updated hardwood floors, a luxurious custom kitchen with quartz counters, high-end appliances, and a large walk-in pantry. The open dining area flows seamlessly to the patio, while the living room offers a warm and inviting vibe with its beautiful wood-burning fireplace and custom built-ins. Upstairs, you'll find 2 bedrooms, a bright office, and a stylish 3-pc bath. The top floor is a true retreat, featuring a spacious primary bedroom with a walk-in closet and a private 4-pc ensuite. The finished basement includes an additional bedroom, 3-pc bath, a wet bar, and a separate entrance, ideal for guests, in-laws, or potential rental income. All this in a prime location close to Costco, shopping, transit, community centres, restaurants, and top-rated schools. Bonus: drawings for a new two-car tandem garage are available! This is more than just a home. It's a lifestyle upgrade waiting for you.
Key Facts & Features
Property Costs
- Annual Property Tax Amount
- $4,639
- Land Transfer Tax Fee
- $14,975
- Basement Type
- Finished, Separate Entrance
Interior Features
- Interior Extras
- Built-In Oven, In-Law Capability, Water Heater Owned
- Fireplace/Stove
- Yes
- Fireplace Features
- Wood, Living Room, Fireplace Insert
- Elevator
- No
Exterior Features
- Pool
- Inground
Building
- Building Type
- Detached
- Building Style
- 2 1/2 Storey
Construction
- Exterior Finish
- Brick
- Roof
- Asphalt Shingle
- Foundation Details
- Block
- Special Designation
- Unknown
Lot
- Lot Front
- 40.04 ft
- Lot Depth
- 216.98 ft
Inclusions
- Inclusions
- B/I SS Bosch Wall Oven and Convect Microwave, Bev. Fridge, Bosch Gas Cooktop, SS Fridge, SS B/I Dish Washer, Washer & Dryer, SS Fridge in BSMT, All ELF's, B/I in Office, All TV mounts. All Pool Equipment and furniture. Drawings for a new two-car tandem garage are available!
Exclusions
- Exclusions
- All TVs, Staging decor
Parking & Garages
- Garage Type
- Detached
- Garage Spaces
- 1
- Parking Spaces
- 4
- Total Garage And Parking Spaces
- 5
Heating & Cooling
- Heat Source
- Gas
- Heat Type
- Forced Air
- Air Conditioning
- Central Air
- Water
- Municipal
- Sewers
- Sewer
- Bedrooms
- 3 + 1
- Washrooms
- 3
- Kitchens
- 1
Room sizes
- Kitchen—Main level, B/I Appliances, Centre Island, Backsplash
- Living Room—Main level, Hardwood Floor, Fireplace, B/I Shelves
- Dining Room—Main level, Hardwood Floor, W/O To Deck, Combined w/Kitchen
- Primary Bedroom—Third level, 4 Pc Ensuite, Walk-In Closet(s), Combined w/Office
- Bedroom 2—Second level, Broadloom, Closet, Window
- Bedroom 3—Second level, Broadloom, Double Closet, Window
- Office—Second level, B/I Desk, Balcony, Overlooks Backyard
- Family Room—Basement level, Wet Bar, Tile Floor, Window
- Bedroom 4—Basement level, Tile Floor, Window
- Pantry—Ground level, Window, Walk-In Closet(s)
Washrooms
- 4-piece, Third
- 3-piece, Second
- 3-piece, Basement
- Municipality
- Oshawa
- Neighbourhood
- O'Neill
- Main cross streets
- Ritson Rd N & William St E
- Directions
- Ritson Rd N & William St E
- MLS® number
- E12455035
- Data source
- Toronto Regional Real Estate Board
- Status change
- 2025-11-27
- Listed on
- 2025-10-09
- Days on market
- 49 days
- Possession date
- 2025-11-30
- Possession type
- 30-59 days
- Co-op commission
- 2.5%
- Seller
- Listed by
- RIGHT AT HOME REALTY
Home Market Value
Current home valuation for 300 William Street E, Oshawa, O'Neill, Oshawa, ON. Listed for $925,000
HOMEH Estimate
$763,500
Estimated Sales Range
$538,824 - $988,176
HOMEH Estimate for 300 William Street E, Oshawa, O'Neill
Calculated with a real agent's CMA method — 45+ years of experience, codified. Not an AI guess.
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Mortgage Payment Calculator
Compare up to 4 down payment scenarios
5% on first $500K + 10% on $425,000 over $500K
$67,500
| Scenario 1 | Scenario 2 | Scenario 3 | Scenario 4 | |
|---|---|---|---|---|
−Down payment | % $ | % $ | % $ | % $ |
+CMHC insurance | $34,299 | $25,808 | $22,015 | $0 |
=Total mortgage | $891,774 | $858,308 | $808,265 | $740,000 |
Amortization | ||||
Mortgage rate | % | % | % | % |
| Payment frequency | ||||
=Mortgage payment | $4,354monthly | $4,191monthly | $3,946monthly | $3,613monthly |
Land Transfer Tax
$14,975
$14,975
Around this home
Data provided by OpenStreetMap & Fraser Institute School Rankings
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