584 Fourth Line, Oakville, ON
West, Oakville · MLS® W13162726
About this home
Set on a deep pool-sized lot in prestigious South Oakville, this custom-built estate offers over 8,500 SF of meticulously finished living space. A dramatic slab feature wall & oversized entry door make a striking first impression, introducing soaring ceilings, wide-plank oak flooring, architectural detailing & expansive windows that seamlessly connect indoor & outdoor living. The designer kitchen is a chef's dream, featuring state-of-the-art B/I appliances, an oversized island, quartz & natural wood surfaces, custom cabinetry, a full prep pantry, dedicated servery, & accordion windows that open directly to the backyard for effortless entertaining. Sun-filled principal rooms flow into a stunning family room anchored by a statement fireplace wall & a W/O to a covered rear portico, which includes its own fireplace, lounge, & dining areas overlooking the pool-ready backyard. A spectacular 22-ft office/library creates the ideal work-from-home setting. Upstairs, the luxurious primary retreat offers a fireplace, custom walk-in closet & spa-inspired ensuite w/ heated floors & a freestanding tub. Generous secondary bedrooms feature ensuite/semi-ensuite access, while the third-floor loft serves as a versatile guest retreat, executive lounge, studio, or additional bedroom w/ a wet bar, W/I closet & private ensuite. Recently completed, the lower level delivers a true lifestyle experience w/ multiple entertainment lounges, a designer wet bar/kitchenette w/ W/O access, a theatre/games room, sauna, wine cellar, guest suite, heated floors throughout & a spa-inspired bath w/ a double rainfall shower. Modern luxury meets everyday comfort w/ a newly installed elevator services all levels, multiple fireplaces, B/I speakers, smart home systems, EV charging rough-in, pet washing station, landscaped grounds & walkouts to multiple private decks. Ideally located near top-rated schools, boutique shopping, private clubs, Lake Ontario, Bronte Harbour & convenient access to the QEW & Hwy 403.
Key facts
- Property type
- Detached, 2 1/2 Storey
- MLS®
- W13162726
- Bedrooms
- 6 (5 + 1)
- Bathrooms
- 7 (1 half)
- Size
- 5,000 sq ft
- Lot
- 60 × 272.6 ft
- Cross streets
- S Service Rd & Fourth Line
- Parking
- 2 garage · 10 parking (built-in)
- Driveway
- Private
- Basement
- Finished, Full
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Stone, Wood
- Foundation
- Poured Concrete
- Roof
- Asphalt Shingle, Metal
- Sewer
- Sewer
- Property tax
- $22,557 / 2026
- Days on market
- 57
- Listing brokerage
- SAM MCDADI REAL ESTATE INC.
Rooms
pantry · centre island · b/i appliances
walk-in closet(s) · 3 pc ensuite · window
closet · 4 pc bath · combined w/kitchen
walk-in closet(s) · 5 pc ensuite · heated floor
double closet · semi ensuite · window
fireplace · b/i shelves · vaulted ceiling(s)
double closet · 3 pc ensuite · window
pot lights · elevator · hardwood floor
pot lights · built-in speakers · hardwood floor
pot lights · w/o to deck · hardwood floor
pot lights · w/o to deck · hardwood floor
double closet · semi ensuite · window
b/i closet · 3 pc bath · above grade window
fireplace · w/o to deck · overlooks backyard
pot lights · built-in speakers · hardwood floor
pot lights · wet bar · hardwood floor
Listed at $4,498,000, this home is within the range of a wider set of listings, but with few close matches nearby, so worth confirming with a precise CMA. The number above is my independent estimate of value, not the asking price.
There are only a few closely comparable homes right here, so this is a broad read from wider listings in the area. Ask me for a precise CMA before relying on it.
Based on 59 similar homes nearby, adjusted for size, beds, and baths.Median of 59 comparable active listings, adjusted for size, beds, and baths. The city (MPAC) assessment points to about $5.35M, a bit higher.
How I got there
Here is the exact math behind the estimate. I start from the closest comparable listing and adjust for the real differences (size, beds, baths) to land on a like-for-like value for this home.
- Closest comparable, listed at $4.40M
- Bathrooms −$15K
- Adjusts to $4.38M
That comparable adjusts to $4.38M; the $4.78M estimate above is the median of all 59 comparables, which is steadier than any single home.This uses comparable active listings, not sold prices. Lot, condition, and finishes are my in-person call, and I can run a full CMA with recent solds.
On location, this is a more car-dependent spot, so buyers here typically drive. Transit is limited nearby. Worth weighing if transit access matters to you.
Total price vs nearby homes. Fair value about $4.78M, median of 59 comparables.
What the listing highlightsThese are claims from the listing. The only way to know for sure is to see it in person, and I am happy to book you a private showing.
- Upscale kitchen: a genuine value driver, verify the appliances, stone, and finishes in person.
- Heated floors: comfort and a premium-finish signal.
- Pool: lifestyle appeal, but adds maintenance, insurance, and resale is mixed.
- Tall ceilings: they transform how a home feels, worth confirming the actual heights room to room.
- Premium lot / gardens: lot size and privacy hold value and cannot be changed, verify frontage, depth, and any easements.
- Value driver
- Lifestyle
- Weigh carefully
- Worth verifying
The closest active listings by size, beds, and price, so you can see what this home is up against.
The 5 closest of 8 active listings nearby.
See all comparable homesThis home lists 7% below the area average of $963/sqft.
51 days longer than the Oakville average (6 days).
View comparable listingsPrice per square foot vs the area average.
Neighbourhood & location
West, Oakville, ON
Enter a workplace or destination and we’ll show the door-to-door time by car, transit and bike.
Getting around
Car-DependentA walkability read built from the amenities around this home: how close the nearest transit stop is, and how many grocery, dining, park, and pharmacy destinations fall within a 15-minute walk. It is a guide, not a guarantee. Places data from Google.
Almost all errands require a car.
Within a 15-minute (1.5 km) walk.
How asking prices compare in the closest areas to this home. Longer bars mean a pricier market.
Typical asking price of active listings of the same type, per area (outliers removed). Oakville.
Get the full neighbourhood report (schools, parks, transit & safety) →
Affordability & Mortgage
Income needed assumes a ~32% GDS ratio; weekly is mortgage principal & interest only. Price ÷ income is the home price over the income needed. Fixed reference assumptions so listings compare on equal footing, not a lending decision.
Calculate and customize your mortgage and other expenses
Adjust the down payment, rate, and amortization, and add property tax, condo fees, and heating to see your true monthly cost.
Your numbers
Homes over $1.5M can't be insured, so 20% down or more is required.
Conventional (20%+ down). Best insured 5-year fixed 3.99% via Ratehub.ca (as of July 18, 2026); conventional rates run a little higher.
Mortgage amount $3,598,400 · 4.14% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $19,202
- Property tax
- $1,880
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $21,082
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $98,925
- Estimated closing costs
- $98,925
Plus your down payment of $899,600. Legal fees, title insurance, and adjustments are extra and vary by deal.
Mortgage stress test
Lenders qualify you at the greater of your rate plus 2% or 5.25%. You do not pay this rate. It just shows you could still handle payments if rates rose, so aim to stay comfortable at this higher number.
Over the full 25 years
At the end of your 5-year term
- Total paid over the term
- $1,152,144
- Principal paid down
- $458,257
- Interest paid
- $693,887
- Balance remaining
- $3,140,143
Talk to Team Asgarian about your options
Rates and programs change often. We will connect you with a trusted mortgage professional and build a plan that fits your budget and goals.
Estimates only, not a mortgage quote or pre-approval. Figures use Canadian semi-annual compounding, current minimum down-payment rules, CMHC premium tiers, and Ontario (plus Toronto, when selected) land transfer tax. Actual rates, taxes, insurance, and closing costs vary by lender and property. Confirm every number with your mortgage professional.
Investor snapshot
Thinking of this home as an investment? We will pull real comparable rents and run the full numbers with you.
Talk about the numbersEstimates only. Rent is modelled on above-grade size and local norms, so a finished basement or second suite (a separate entrance often means one) can push real rent well above this. Taxes, fees, and vacancy vary by property, and cap rate is before financing. A starting point, not a final number, let us run the real ones with you.
Helpful resources
All information deemed reliable but not guaranteed. For personal, non-commercial use only. Listing courtesy of SAM MCDADI REAL ESTATE INC.. MLS®/PropTx.