Listed for:Listed 27 days ago
$10,990,000

26A Winchester Drive

Seguin, ON P0C 1J0

Detached House For Sale
Kim Karimi
Kim Karimi

Real Estate Broker

416-838-3031
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Sale & Price History for 26A Winchester Drive, Seguin

No listing history available

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About 26A Winchester Drive, Seguin

Summarized Description

  • Exceptional waterfront residence on Lake Rosseau.
  • Extensive new construction with high-end finishes.
  • Chef's kitchen with premium appliances.
  • Private primary suite with spa-inspired ensuite.
  • Newly built boathouse with lounge area.
  • Parking for over 10 vehicles available.
  • Minutes from Rosseau village amenities.
  • Expansive island views and all-day sun.

Set on iconic Lake Rosseau near Picnic Point, Winchester Retreat is an exceptional waterfront residence designed by Cassis Design Studio & RLC Design, featuring extensive 2026 new-from-the-studs construction and new additions to the kitchen, dining room, Muskoka Room and primary suite. Contemporary design blends beautifully with timeless Muskoka post-and-beam craftsmanship.Positioned on 1.72 acres with all-day sun and expansive island views, the property offers approximately 4,819 sq. ft. of finished living space with five bedrooms and five bathrooms. Restored white pine timbers, cathedral ceilings, wide-plank white oak flooring and custom millwork define the interiors. The dramatic great room features a wall of glass framing sweeping lake views, Selva Bianca marble propane fireplace, tiered alabaster chandelier, private office and access to lakeside decks. A concealed door from the bar leads to the pantry. The chef's kitchen features Panda White marble, Wolf double-oven range, Sub-Zero refrigeration, large island and Thermador dishwashers, opening to the dining room and glass-enclosed Muskoka Room. The private primary suite offers lake views, spa-inspired ensuite, walk-in closet, laundry, office and private deck. Additional highlights include guest suites, lakeview loft, recreation room with bar, gym and secondary laundry.At the shoreline, a newly constructed 2026 boathouse and dock offer southwest sunset views, lounge area, kitchenette, granite serving bar, change room and storage. Deep and shallow swimming, Muskoka stone pathways, fire pit, hot tub and multiple seating areas complete the waterfront. Parking for 10+ vehicles, a 4-car detached garage with oversized double doors, space for a pool or pickleball court and an approved permit for a new two-bedroom bunkie add exceptional versatility. Minutes from Rosseau village with easy access to dining, golf, resorts and Big Three boating. Bell Fibe available.

Key Facts & Features

Property Costs

Annual Property Tax Amount
$8,384
Land Transfer Tax Fee
$261,225

Rental Items

Rental Equipment
Propane Tank
Under Contract
Propane Tank

Basement Type
Finished with Walk-Out, Full

Interior Features

Laundry Level
Main Level
Interior Extras
Auto Garage Door Remote, Bar Fridge, Carpet Free, Generator - Full, Guest Accommodations, On Demand Water Heater, Primary Bedroom - Main Floor, Propane Tank, Separate Heating Controls, Sewage Pump, Storage, Upgraded Insulation, Water Softener, Water Treatment
View
Forest, Garden, Lake, Trees/Woods, Water
Security Features
Alarm System, Monitored, Carbon Monoxide Detectors, Security System, Smoke Detector
Fireplace/Stove
Yes
Fireplace Features
Propane
Elevator
No

Exterior Features

Exterior Extras
Deck, Hot Tub, Landscape Lighting, Landscaped, Lawn Sprinkler System, Patio, Privacy, Porch, Year Round Living
Pool
None
Property Features
Golf, Lake Access, Lake/Pond, Marina, Wooded/Treed, Waterfront

Building

Building Type
Detached
Building Style
2-Storey

Construction

Exterior Finish
Wood
Roof
Asphalt Shingle, Metal
Foundation Details
Insulated Concrete Form
Special Designation
Unknown

Lot

Lot Front
175.00 ft
Lot Depth
246.00 ft
Lot Size
1.729

Inclusions

Inclusions
Sub-Zero refrigerator/freezer; 48" dual-fuel 8-burner range with double oven; KitchenAid refrigerator; boathouse bar fridge; Elica hood vent; Sharp microwave drawer; 2 Thermador dishwashers; Zephyr dual-zone wine fridge; Zephyr fridge drawers; Zephyr beverage centre; 2 Electrolux laundry towers; hot tub.

Exclusions

Exclusions
TBD

Parking & Garages

Garage Type
Detached
Garage Spaces
4
Parking Spaces
8
Total Garage And Parking Spaces
12

Heating & Cooling

Heat Source
Propane
Heat Type
Forced Air
Air Conditioning
Other
Water
Well
Sewers
Septic
Natural Gas
No
Hydro
Yes
Cable
No
Telephone
No

Bedrooms
3 + 2
Washrooms
5
Kitchens
1
Family / bonus room
Yes

Room sizes

  • Room—

Washrooms

  • 2-piece, Main
  • 5-piece, Main
  • 4-piece, Second
  • 3-piece, Lower

Municipality
Seguin
Neighbourhood
Seguin
Main cross streets
Peninsula Road and Maplehurst Road
Zoning
LSR
Directions
Peninsula Road (632) to Maplehurst Road to Little Morgan Road to Winchester
Waterfront
Direct

MLS® number
X13801344
Data source
Toronto Regional Real Estate Board
Listed on
2026-09-18
Updated on
2026-10-14
Days on market
27 days
Possession type
Flexible
Co-op commission
2.5%
Seller
Listed by
CAYMAN MARSHALL INTERNATIONAL REALTY INC.

Home Market Value

Current home valuation for 26A Winchester Drive, Seguin, Seguin, ON. Listed for $10,990,000

HOMEH Estimate

?

$10,289,976

Estimated Sales Range

?

$8,129,081 - $12,450,871

HOMEH Estimate for 26A Winchester Drive, Seguin

Calculated with a real agent's CMA method — 45+ years of experience, codified. Not an AI guess.

$10,289,976Medium confidence
Based on 14 comparable properties
+ $700,024 (7%) above our estimate
See the full analysisFree Every recent nearby sale behind this number

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Mortgage Payment Calculator

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Seguin, ON
Minimum Down Payment Required:20.0%

20% required for homes $1.5M or more

Minimum down payment

$2,198,000

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=Total mortgage
$8,792,000$8,242,500$7,693,000$7,143,500
Amortization
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Payment frequency
=Mortgage payment
$42,927monthly$40,244monthly$37,561monthly$34,878monthly
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Land Transfer Tax

Provincial

$261,225

Total Land Transfer Tax

$261,225

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