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$12,985,000

Map

728529 21st Sideroad

Blue Mountains, Ontario N0H1J0

For sale· Added

6 bed7 bath5,000–100,000 sqft

About this property

Majestically positioned upon eighty pristine acres within Clarksburg's most distinguished countryside enclave, this Frank Lloyd Wright-inspired architectural tour de force represents the pinnacle of luxury residential design. Approached through monitored gates and a winding driveway, this extraordinary five-bedroom, seven-bathroom estate exemplifies uncompromising craftsmanship, where the masterful fusion of Corten steel, cedar, and metallic exterior elements creates a striking modern silhouette set against a magnificent natural backdrop, enhanced by dramatic landscape lighting that elevates the estate's grandeur through twilight hours. The palatial interior reveals soaring eighteen-foot ceilings and resplendent marble floors, culminating in an open-concept masterpiece with polished concrete flooring and 12.5 ft. floor-to-ceiling windows framing the serene landscape. The Varenna Poliform kitchen impresses with a 20.5 ft. island, Sub-Zero and Wolf appliances, 11 ft. ceilings, and bespoke walnut cabinetry that flows with architectural harmony throughout. The lavish two-storey primary suite offers polished plaster walls, custom walnut built-ins, a marble ensuite with chronotherapy rain shower, and a private retreat lounge. Additional bedrooms include terraces or balconies, with two guest suites offering luxurious ensuites-one serving as a secondary primary with service bar. Entertainment abounds with a professional theatre, custom gym, and stunning two-storey lounge bar overlooking a 22 ft. infinity pool. A heated five-car garage and radiant flooring ensure year-round comfort. A separate two-storey guest house includes a full kitchen, loft bedroom, and soaring ceilings. A pristine barn provides premium equestrian facilities. Landscaped grounds feature a fire pit, hot tub, and pergola, all enhanced by elegant lighting. With Loree Forest nearby and a Generac generator, this estate blends architectural brilliance with modern sophistication.

Location

Map data © OpenStreetMap contributors

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Property details

Listing

MLS® number
X13868914
Added
Oct 6, 2026 ()
Updated
Oct 6, 2026 ()
Info refreshed

Overview

Property type
Agriculture
Storeys
2

Inside

Bedrooms
6
Bathrooms
7
Half baths
3
Heating
Other
Cooling
Air exchanger
Fireplace
Yes
Appliances
Central Vacuum, Intercom, Oven - Built-In, Water Heater - Tankless
Features
Guest Suite, Sauna

Building

Basement
None
Exterior
Steel, Concrete
Parking
Garage · 30 spaces

Land

Lot size
1753 x 1951 ft
Pool
Above ground pool
Zoning
A1 H

Services

Utilities
Electricity, Cable

Location

Cross streets
Sideroad 21 and 6th Line
Directions
From Hwy 26 turn onto Grey Road 40, left onto 7th line, left onto side road 21, property is on the left.

Running costs

Annual property tax
$18,136

Rooms

FoyerMain level6.07 x 6.56 m
Laundry roomSecond level1.92 x 2.71 m
KitchenMain level7.35 x 7.48 m
StudySecond level9.45 x 8.69 m
Exercise roomSecond level5.11 x 6.07 m
BedroomSecond level2.92 x 2.92 m
BedroomSecond level3 x 4.03 m
OtherSecond level2.53 x 2.32 m
Dining roomMain level4.73 x 7.48 m
Primary BedroomMain level7.67 x 6.56 m
Living roomMain level6.2 x 8.63 m
BedroomMain level3.47 x 5.39 m
BedroomMain level7.78 x 7.48 m
OtherSecond level8.13 x 6.45 m
MediaSecond level5.07 x 5.15 m
Utility roomSecond level5.28 x 5.67 m

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$12,985,000
728529 21st Sideroad
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