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300 William Street E
O'Neill Oshawa L1G 1K8

$888,888
Residential Freehold beds: 3+1 baths: 3.0

Front of home
Photo 1: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 2: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 3: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 4: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 5: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 6: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 7: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 8: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 9: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 10: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 11: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 12: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 13: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 14: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 15: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 16: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 17: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 18: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 19: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 20: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 21: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 22: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 23: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 24: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 25: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 26: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 27: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 28: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 29: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 30: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 31: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 32: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 33: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 34: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 35: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 36: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 37: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 38: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 39: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 40: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 41: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 42: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 43: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 44: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 45: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 46: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 47: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 48: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 49: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Photo 50: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
Status:
Active
Prop. Type:
Residential Freehold
MLS® Num:
E12426198
Bedrooms:
3+1
Bathrooms:
3
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 entranceideal for guests, in-laws, or potential rental income. Wiring and plumbing for a stove and laundry are already in place. 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.
Property Type:
Residential Freehold
Property Sub Type:
Detached
Home Style:
2 1/2 Storey
Total Approx Floor Area:
1500-2000
Depth:
216'11¾"
Frontage:
40'½"
Direction Faces:
North
Bedrooms:
3+1
Bathrooms:
3.0
Water supply:
Municipal
Kitchens:
1
Bedrooms Above Grade:
3
Bedrooms Below Grade:
1
Kitchens Above Grade:
1
Rooms Above Grade:
7
Rooms Below Grade:
2
Heating type:
Forced Air
Heating Fuel:
Gas
Foundation:
Block
Roof:
Asphalt Shingle
Basement:
Finished, Separate Entrance
Fireplace Features:
Wood, Living Room, Fireplace Insert
Fireplace/Stove:
Yes
Garage:
Detached
Garage Spaces:
1.0
Parking Spaces:
4
Total Parking Spaces:
5.0
Family Room:
No
Pool:
Inground
Link:
No
HST Applicable To Sale Price:
Included In
Taxes:
$4,638.84 / 2025
Assessment:
$- / -
Durham
Oshawa
O'Neill
Built-In Oven, In-Law Capability, Water Heater Owned
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. Drawings for a new two-car tandem garage are available!
All TVs, Staging decor
Brick
Floor
Type
Size
Other
Main
Kitchen
16'1" × 10'7½"
B/I Appliances, Centre Island, Backsplash
Main
Living Room
11'9¾" × 10'8"
Hardwood Floor, Fireplace, B/I Shelves
Main
Dining Room
18'4½" × 14'3"
Hardwood Floor, W/O To Deck, Combined w/Kitchen
Third
Primary Bedroom
18'8" × 16'5"
4 Pc Ensuite, Walk-In Closet(s), Combined w/Office
Second
Bedroom 2
12'2" × 11'2"
Broadloom, Closet, Window
Second
Bedroom 3
12'⅞" × 11'1½"
Broadloom, Double Closet, Window
Second
Office
14'3¼" × 11'7¾"
B/I Desk, Balcony, Overlooks Backyard
Basement
Family Room
25'11" × 13'5"
Wet Bar, Tile Floor, Window
Basement
Bedroom 4
13'4¼" × 9'10"
Tile Floor, Window
Ground
Pantry
13'4¼" × 9'10"
Window, Walk-In Closet(s)
Special Designation:
Unknown
Sewers:
Sewer
Air Conditioning:
Central Air
Central Vacuum:
No
Seller Property Info Statement:
No
Ensuite Laundry:
No
Date Listed:
Sep 25, 2025
Original Price:
Previous Price:
  • Photo 1: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Front of home
  • Photo 2: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Front with driveway
  • Photo 3: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Interlocking walkway up to home
  • Photo 4: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Front porch
  • Photo 5: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Front door & coat closet
  • Photo 6: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Living room
  • Photo 7: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Living room w/ fireplace & built-in shelving
  • Photo 8: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Living room - 2
  • Photo 9: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Living room - 3
  • Photo 10: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Dining room with W/O to backyard
  • Photo 11: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Dining room
  • Photo 12: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Kitchen - centre island
  • Photo 13: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Custom kitchen w/ quartz countertops
  • Photo 14: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Stainless steel appliances
  • Photo 15: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Built-in SS convect microwave and wall oven
  • Photo 16: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Centre island w/ beverage fridge and storage
  • Photo 17: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Pantry w/ large windows
  • Photo 18: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Entryway and stairs to 2nd & 3rd floor
  • Photo 19: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Primary bedroom on 3rd floor
  • Photo 20: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Primary bedroom
  • Photo 21: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Primary bedroom w/ walk-in closet
  • Photo 22: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Primary bedroom ensuite w/ soaker tub
  • Photo 23: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Ensuite w/ dual vanity & glass stand-up shower
  • Photo 24: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    2nd floor office w/ W/O to balcony
  • Photo 25: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Built-in office desk & storage
  • Photo 26: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Reading nook w/ W/O to balcony
  • Photo 27: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    2nd floor balcony
  • Photo 28: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    2nd bedroom
  • Photo 29: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    2nd bedroom - 2
  • Photo 30: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    3rd bedroom
  • Photo 31: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    3rd bedroom - 2
  • Photo 32: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    2nd floor bathroom shower & sink
  • Photo 33: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    2nd floor 3-pc bathroom
  • Photo 34: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Family room in basement
  • Photo 35: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Family room with dining area
  • Photo 36: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Family room & wet bar
  • Photo 37: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Wet bar in basement
  • Photo 38: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    4th bedroom in basement
  • Photo 39: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    4th bedroom in basement 2
  • Photo 40: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Basement 3-pc bathroom
  • Photo 41: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Backyard Deck
  • Photo 42: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Interlocking & deck - backyard
  • Photo 43: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Fire pit & backyard
  • Photo 44: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Pool & Pool house
  • Photo 45: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Pool view
  • Photo 46: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Pool view towards house
  • Photo 47: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Pool House w/ hydro
  • Photo 48: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Bird's Eye View - Backyard
  • Photo 49: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Aerial - backyard, pool, fire pit & pool house
  • Photo 50: 300 William Street E in Oshawa: O'Neill House for sale : MLS®# E12426198
    Front of home - Aerial

Virtual Tour 2

Listed by RIGHT AT HOME REALTY
Data was last updated October 2, 2025 at 05:15 PM (UTC)
Area Statistics
Listings on market:
51
Avg list price:
$729,900
Min list price:
$449,900
Max list price:
$1,988,000
Avg days on market:
22
Min days on market:
2
Max days on market:
707
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.
JIM STANTON
BEN STANTON
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.