300 William Street, Oshawa, ON

$925,000
MLS#:E12455035
4 beds
3 baths
1500-2000 sqft
5.0 parking
Residential Freehold
Loading property media...
⚠️

Property no longer active

This property was sold on November 27, 2025. This listing is for reference purposes only. to view the sold price.

Property Highlights

Welcome to this remarkable 2 1/2 Storey detached located in the coveted neighborhood of O'Neill. Expertly crafted featuring premium brick construction, this residence presents an exceptional opportunity offered at $925,000 to acquire a beautiful home in a highly sought-after setting. Designed for both comfortable daily living and elegant entertaining, the layout maximizes natural light, functional flow, and lifestyle utility.

  • 4 Bedrooms and 3 Bathrooms
  • Generous living space spanning 1500-2000 sqft on a premium 40.04 x 216.98 ft lot
  • Features a finished, separate entrance basement, adding superb versatility for recreation, a home gym, or extra storage
  • 5.0 total parking spaces available with a convenient detached configuration
  • Notable attributes: Built-In Oven, In-Law Capability, Water Heater Owned
  • equipped with central air central cooling and highly efficient forced air heating via gas

Description

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.

Schedule a Tour

Contact us to schedule a private viewing of this property.

Contact Agent

Generate CMA Report

Property Summary

This detached home located at 300 William Street, Oshawa is currently for sale and has been available on SousaSells for 281 days. This property is listed at $925,000 with an estimated mortgage of $3,079* per month. It has 4 beds, 3 bathrooms, and is 1500-2000 square feet. 300 William Street, Oshawa is in the O'Neill neighborhood.

* Estimated mortgage assumes a 30% down payment, 4.00% interest rate, and 30-year amortization.

Key Features

Bedrooms
4
Bathrooms
3
Kitchens
1
Living Area
1500-2000 sqft
Property Type
Residential Freehold

Additional Details

StatusSold
Sold DateNovember 27, 2025
Sold price information is available to members only
Listed Date10/9/2025
Transaction TypeFor Sale

Property Details

Property Sub-TypeDetached
Architectural Style2 1/2 Storey
ConstructionBrick
BasementFinished, Separate Entrance
Lot Size40.04 × 216.98 Feet
CountyDurham
Annual Tax$4,638.84
Legal DescriptionLT C24 SHEET 4 PL 335 OSHAWA; PT LT C21 SHEET 4 PL 335 OSHAWA PT 2, 40R17470; CITY OF OSHAWA

Parking & Garage

Parking Spaces5.0
Garage Spaces4
Garage TypeDetached

Heating & Cooling

Heat SourceGas
Heat TypeForced Air
CoolingCentral Air

Features

Property Features

Interior Features

Built-In Oven, In-Law Capability, Water Heater Owned

Security Features

Community Features

Virtual Tours

Location

Initializing map...
300 William Street, Oshawa, ON
Loading local market trends...

Property History

No historical data available for this property.

This could be the first listing for this address.

Pricing & Value Insights

Data-driven valuation for 300 William Street E, Oshawa, ON L1G 1K8

Estimated Sales Range
$1.2M - $1.4M

Based on 0 recent similar sales in the pocket.

Market Speed
Loading stats...

Properties in this area are selling at a steady pace.

Market Trend
Calculating trend...

Mortgage & Affordability Audit

Calculate your monthly payment, minimum downpayment, and land transfer taxes for this home in Oshawa.

Configure Loan Settings

Interest Rate4.00%
Down Payment$277,500 (30.0%)
* Minimum Canadian down payment required for this price is $67,500.
Amortization Period30 Years
Estimated Monthly Payment$3,079Based on a loan of $647,500 over 30 years.
Purchase Price$925,000
Loan Amount$647,500
Provincial Land Transfer Tax:$14,975
Total Estimated Closing Taxes:$14,975

About Purchasing a Home in Oshawa, ON

For a property listed at $925,000 in Oshawa, the legal minimum down payment is $67,500 under current Canadian banking regulations. This calculation applies a 5% requirement on the first $500,000, 10% on the next $499,999, and a flat 20% on any amount exceeding $1,000,000.

Additionally, buyers in Ontario must budget for the Provincial Land Transfer Tax, which is estimated at $14,975 for this transaction. As this listing is in Oshawa (outside the City of Toronto), no additional municipal land transfer tax is levied, resulting in total estimated land transfer taxes of $14,975.

Similar Listings Nearby

City & Neighborhood Guide

Comprehensive city-wide demographics, local real estate stats, and school rankings for O'Neill, Oshawa.

Verified Local Data
City Population415,311
City Median Age39.6 Yrs
City Ownership75% Owners
Avg Area List Price$710,467

People & Families

Age Distribution

Household Composition

One-person households
21%
Families with children
53%
Couples without children
26%
Other households
0%

Top Ethnic Origins

English23%
Scottish18%
Irish18%
Canadian16%

Local Schools Guide

Elementary Schools

Mary Street Community
Public110 Mary Street North, Oshawa, Ontario, L1G 7S2
3.1
Hillsdale
Public525 Oshawa Boulevard North, Oshawa, Ontario, L1G 5T6
5.3
Coronation
Public441 Adelaide Avenue East, Oshawa, Ontario, L1G 2A4
7.3
Sir Albert Love
Public425 Wilson Road North, Oshawa, Ontario, L1G 6E6
5.7
St Christopher
Public431 Annapolis Avenue, Oshawa, Ontario, L1J 2Y5
3.7

Secondary Schools

O’Neill
Public301 Simcoe Street North, Oshawa, Ontario, L1G 4T2
5.7
Eastdale
Public265 Harmony Road North, Oshawa, Ontario, L1G 6L4
4.2

Homes & Housing

Structural Home Types

Tenure (Ownership vs Rental)

Owner-Occupied75%
Rented25%

Need more details or a custom CMA?

Generate a full market evaluation or explore city guides using the sidebar links.

Notice: Market Insights are generated by analyzing real-time data and should be used for informational purposes only. Consult with a licensed professional for exact valuations.

Disclaimer: AI Insights are generated by an automated system and should be used for informational purposes only. While we strive for accuracy using current market data and deep-learning models, these assessments do not constitute professional real estate, legal, or financial advice. All property values, predictions, and scores are estimates. We strongly recommend verifying all property details and conducting independent due diligence with a licensed professional before making any purchase decisions.