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.
Experience ultimate luxury and bespoke design at 3 Mary Willson Crt, a truly one-of-a-kind custom estate located on a private and quiet cul-de-sac, offering Over 6,000 sq. ft. of above-grade living space (excluding garage) with over $450,000 invested in premium upgrades.This exceptional residence features 7 spacious bedrooms and 9 bathrooms, with every bedroom offering a private ensuite and custom walk-in closet, delivering outstanding comfort and privacy. Hardwood flooring throughout both levels creates a fully carpet-free, refined interior, complemented by extensive recessed spot lighting throughout all rooms, bedrooms, and bathrooms, enhancing the bright and elegant ambiance. A grand open-concept foyer welcomes you into a thoughtfully designed layout ideal for family living and entertaining, highlighted by dual staircases, a super-sized private office, and a front walk-in coat closet with a window. The chef's dream kitchen serves as the heart of the home, featuring floor-to-ceiling custom cabinetry with decorative moulding, a stainless steel gas range, a large pantry, and an oversized open-concept layout perfect for everyday living and hosting.Designed for multi-generational living, the rare oversized main-floor bedroom includes its own private laundry and ensuite, while the upgraded second-floor laundry with window adds convenience. Ceiling heights impress with 10 ft on the main floor and 9 ft on the second floor, enhanced by a dramatic skylight.Enjoy a south-facing, resort-style backyard with a custom inground pool, premium interlocking, vinyl fencing, and a whirlpool jacuzzi, offering the perfect retreat for relaxation or entertaining. Completing this offering are a 4-car garage, total parking for 10 vehicles, and two independent furnace and air conditioning systems for year-round comfort.A rare luxury estate, extensively upgraded, generously scaled, and privately situated-an exceptional opportunity in one of East Gwillimbury's most prestigious locations.
Property Details
Listing
MLS® number
N13773182
Status
For Sale
Listed
Sep 11, 2026
Last updated
Oct 7, 2026
Possession
Flexible
Building
Type
Detached
Style
2-Storey
Approx. age
Not provided by brokerage
Approx. size
5,000+ ft²
Basement
Partially Finished
Lot
Frontage
70.51 ft
Depth
149.48 ft
Lot area
≈ 10,540 ft² (calculated)
View
South
Community
Sharon
Parking & utilities
Garage
Attached, Garage, 4 spaces
Driveway
Private, 6 spaces
Heating
Forced Air
Cooling
Central Air
Water / sewer
Not provided by brokerage
Taxes
Property tax
$14,331 / 2025
Condo fee
N/A
Source
Data source
TRREB (VOW feed)
Listed by
HOMECOMFORT REALTY INC.
Interior
Level
Room
Size
Features
Loading rooms…
Interior Features
Bedrooms above grade: 7
Kitchens: 1 above grade
Basement: Partially Finished
Heating: Forced Air
Cooling: Central Air
Fireplace: Yes
Central vacuum: Yes
Exterior
Pool features: Inground
Property features: Fenced Yard, Park, Public Transit, School
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$11,665/mo
Mortgage (principal + interest)$10,471
Property taxFrom listing: $14,331/yr$1,194
Minimum 20% ($559,800 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$559,800
Ontario land transfer taxProvincial brackets, no first-time refund$56,450
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$619,050
First-time buyers can get up to $4,000 back on Ontario land transfer tax. East Gwillimbury 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.
All information deemed reliable but not guaranteed. All properties are subject to prior sale, change, or withdrawal. Neither listing broker(s) nor HousesGate shall be responsible for any typographical errors, misinformation, misprints, and shall be held totally harmless.
