The trademarks MLS®, Multiple Listing Service®, and the associated logos are owned by the Canadian Real Estate Association (CREA) and identify the quality of services provided by real estate professionals who are members of CREA. Listing data provided by the Toronto Regional Real Estate Board (TRREB). Data is deemed reliable but not guaranteed.
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.
Property Details
Listing
MLS® number
X13801344
Status
For Sale
Listed
Sep 18, 2026
Last updated
Oct 14, 2026
Possession
Flexible
Building
Type
Detached
Style
2-Storey
Approx. age
Not provided by brokerage
Approx. size
3,500–5,000 ft²
Basement
Finished with Walk-Out, Full
Lot
Frontage
175.00 ft
Depth
246.00 ft
Lot area
≈ 43,050 ft² (calculated)
View
South
Community
Seguin
Parking & utilities
Garage
Detached, Garage, 4 spaces
Driveway
Circular Drive, Front Yard Parking, Private, Private Double, 8 spaces
Heating
Forced Air
Cooling
Other
Water / sewer
Not provided by brokerage
Taxes
Property tax
$8,384 / 2026
Condo fee
N/A
Source
Data source
TRREB (VOW feed)
Listed by
Cayman Marshall International Realty Inc.
Interior
Level
Room
Size
Features
Loading rooms…
Interior Features
Bedrooms above grade: 3
Bedrooms below grade: 2
Kitchens: 1 above grade
Basement: Finished with Walk-Out, Full
Heating: Forced Air
Cooling: Other
Fireplace: Yes
Fireplaces: 1
Exterior
Waterfront: Yes
Waterfront features: Direct
Pool features: None
Property features: Golf, Lake Access, Lake/Pond, Marina, Wooded/Treed, Waterfront
Demographic data is not available for this area yet.
Population—
Median household income—
Median age—
Age Groups
Age group data is not available.
Owners vs Renters
Ownership data is not available.
Household Type
Household data is not available.
What’s NearbyDistances approximate
No nearby school data is available for this listing.
Transit score information is not available for this listing.
Nearby everyday places are not available for this listing.
Always confirm school catchments with the local school board.
Estimated Rental Income
Rental estimate coming soon
We’re not showing a number until we have a data source we trust. When it’s connected, this section will show:
A monthly rent range from nearby leased homes of the same type and size
The leased comparables behind it (signed-in, VOW-gated)
Gross yield at the current list price
Monthly Cost
A quick estimate to plan with. Taxes come from the listing; change the other inputs to match your situation.
Estimated monthly$41,812/mo
Mortgage (principal + interest)$41,113
Property taxFrom listing: $8,384/yr$699
Minimum 20% ($2,198,000 on this price) applies to homes priced over $1.5M in Canada; the slider starts at 20%. Confirm with a lender.
Mortgage uses Canadian semi-annual compounding. Houses-Gate doesn’t offer financing.
Estimated Budget
About how much cash you’ll need on closing day, besides the mortgage.
Down payment20% of the list price$2,198,000
Ontario land transfer taxProvincial brackets, no first-time refund$261,225
Legal fees & disbursementsTypical range $1,800–$2,800$1,800
Home inspectionTypical range $500–$800$600
Title insuranceTypical range $300–$600$400
Cash needed at closingEstimate$2,462,025
First-time buyers can get up to $4,000 back on Ontario land transfer tax. Seguin has no municipal land transfer tax (Toronto does).
Uses Ontario’s land transfer tax brackets and the down payment set in Monthly Cost. Legal, inspection and title-insurance figures are typical ranges, not quotes.
Listing data is provided under copyright by the Toronto Regional Real Estate Board (TRREB). The data is deemed reliable but is not guaranteed to be accurate. The trademarks MLS®, Multiple Listing Service®, and the associated logos are owned by the Canadian Real Estate Association (CREA) and identify the quality of services provided by real estate professionals who are members of CREA.
The information provided herein must only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate and may not be used for any commercial purpose or any other purpose.
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