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.
About this home
Photos of 584 Fourth Line
Facts and features of 584 Fourth Line
| Type | Detached |
|---|---|
| Style | 2 1/2 Storey |
| Bedrooms | 5 + 1 |
| Bathrooms | 7 |
| Size | 5000 + sq ft |
| Lot | 60 x 272.6 Feet |
| Parking | 10 |
| Garage | Built-In |
| Heating | Forced Air |
| Cooling | Central Air |
| Basement | Finished, Full |
| Exterior | Stone, Wood |
| Age | 6-15 |
| Taxes | $22,557 (2026) |
| Days on market | 43 |
| Listing brokerage | SAM MCDADI REAL ESTATE INC. |
Rooms
16 rooms, with sizes
| Room | Level | Size | Features |
|---|---|---|---|
| Bedroom 4 | Second | 21′ 3″ × 14′ 9″ 6.47 × 4.49 m | double closet, 3 pc ensuite, window |
| Recreation | Basement | 39′ 11″ × 15′ 3″ 12.17 × 4.64 m | closet, 4 pc bath, combined w/kitchen |
| Primary Bedroom | Second | 20′ 7″ × 19′ 6″ 6.28 × 5.94 m | walk-in closet(s), 5 pc ensuite, heated floor |
| Family Room | Main | 25′ 4″ × 19′ 9″ 7.73 × 6.01 m | fireplace, w/o to deck, overlooks backyard |
| Bedroom | Basement | 13′ 11″ × 16′ 8″ 4.24 × 5.07 m | b/i closet, 3 pc bath, above grade window |
| Kitchen | Main | 13′ 0″ × 25′ 10″ 3.95 × 7.88 m | pantry, centre island, b/i appliances |
| Living Room | Main | 20′ 8″ × 16′ 0″ 6.31 × 4.87 m | pot lights, w/o to deck, hardwood floor |
| Dining Room | Main | 20′ 7″ × 16′ 0″ 6.28 × 4.87 m | pot lights, built-in speakers, hardwood floor |
| Breakfast | Main | 11′ 7″ × 20′ 5″ 3.54 × 6.22 m | pot lights, w/o to deck, hardwood floor |
| Bedroom 2 | Second | 22′ 8″ × 13′ 6″ 6.92 × 4.11 m | double closet, semi ensuite, window |
| Bedroom 5 | Third | 17′ 11″ × 15′ 9″ 5.47 × 4.79 m | walk-in closet(s), 3 pc ensuite, window |
| Bedroom 3 | Second | 13′ 9″ × 12′ 3″ 4.2 × 3.74 m | double closet, semi ensuite, window |
| Exercise Room | Basement | 23′ 1″ × 23′ 6″ 7.04 × 7.16 m | pot lights, elevator, hardwood floor |
| Media Room | Basement | 20′ 0″ × 18′ 3″ 6.1 × 5.56 m | pot lights, built-in speakers, hardwood floor |
| Office | Main | 17′ 5″ × 17′ 4″ 5.32 × 5.29 m | fireplace, b/i shelves, vaulted ceiling(s) |
| Den | Second | 17′ 0″ × 16′ 9″ 5.19 × 5.1 m | pot lights, wet bar, hardwood floor |
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584 Fourth Line
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MLS® W13800104 Data source: PropTx Listed September 17, 2026