26A Winchester Drive
Seguin, ON
- 5 bed
- 5 bath
- approx. 3500-5000 sqft
- Detached
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.
Virtual Tour
Virtual Tour Available
Listing Details
- Taxes (2026)
- $8,384
- Listed
- September 18, 2026
Price History
Property
- Style
- 2-Storey
- Construction
- Wood
- Roof
- Asphalt Shingle, Metal
- Foundation
- Insulated Concrete Form
- Interior
- 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
- Lot Size
- 175 x 246 Feet
Parking
- Garage
- Detached
- Covered Spaces
- 4
- Total Parking
- 12
Utilities
- Water
- Drilled Well, Sediment Filter, Water System
- Sewer
- Septic
- Heat Source
- Propane
Location & Legal
- Cross Street
- Peninsula Road and Maplehurst Road
- Zoning
- LSR
- Parcel Number
- 522000336
- Possession
- Flexible
- Occupancy
- Owner
Included
- 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
- TBD
- Rental Items
- Propane Tank
Waterfront
- Water Body
- Lake Rosseau
- Shoreline
- Clean, Deep, Natural
- Docking
- Private
Community
Postal area P0C
- Population
- 4,824
- Private dwellings
- 6,930
- Median age
- 56.8
- Average household size
- 2.1
- Median household income
- $78,500
Source: Statistics Canada, 2021 Census of Population, catalogue 98-401-X2021013. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada of this product.
Local market
Residential Freehold in Seguin · last 12 months
- Median sold price
- $671,000
- Homes sold
- 117
- Median days on market
- 38
- Sale-to-list price
- 94.4%
Based on 117 recorded sales of residential freehold properties in Seguin over the last 12 months.
Listed by
Cayman Marshall International Realty Inc.
Walk Score
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Location
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Mortgage Calculator
$2,198,000
Estimated Monthly Payment
$53,991
Land transfer tax
Ontario land transfer tax only. An estimate — not legal or financial advice. Municipal land transfer tax applies in Toronto and is not included.
Investment Analysis
No recent nearby lease data. Enter a rent to see the numbers.
Mortgage: $53,991/mo (20% down, 5.5%)
Taxes: $699/mo · Insurance: $2,748/mo
Estimates only. Consult a financial advisor.
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Reita is an automated assistant, not a licensed real estate agent. This listing mentions 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.. I can help you explore neighbourhoods, understand the market, and find our free tools. What are you looking for?