East Gwillimbury, ON · · MLS® N13773182Updated
$2,799,000Est. $13,751/mo mortgage
3 Mary Willson Crt is a 7-bedroom, 7-bathroom detached home in East Gwillimbury, listed for $2,799,000. It has 5000 + sq ft of living space.
Coldwell Banker Summit Realty, BrokerageZara is an AI virtual agent. Advisors are licensed REALTORS® at Coldwell Banker Summit Realty, Brokerage.
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.
7 bedrooms, 7 bathrooms, about 5,000 sq ft, works out to roughly $560 per square foot, the bed-to-bath ratio is generous. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
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Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
Sourced from MLS®. Includes earlier listings of this property on record.
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Zara’s estimate
Summitly estimate, not from TRREB, the MLS® or the listing brokerage. Not an appraisal. How it works
Closed sales on the TRREB MLS®.
Full East Gwillimbury market reportSold prices are shown free to signed-in members, as board rules require.
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18725 McCowan Road
7 bd · 3 ba · Detached
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115 Silk Twist Drive
6 bd · 5 ba · Detached
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18922 Leslie Street
6 bd · 2 ba · Detached
3 nearby sales vs. this home
Closed sales from MLS®, compared with this home's asking price.
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| Home | Sold price | $ / sqft | % of asking | Sold |
|---|---|---|---|---|
This home3 Mary Willson Court 7 bd · 7 ba · 5,000 sqft | $2,799,000asking | $560 | — | — |
| 18725 McCowan Road 7 bd · 3 ba · 3,500 sqft | ||||
| 115 Silk Twist Drive 6 bd · 5 ba · 3,500 sqft | ||||
| 18922 Leslie Street 6 bd · 2 ba · 2,500 sqft |
7 bd · 3 ba · 3,500 sqft
6 bd · 5 ba · 3,500 sqft
6 bd · 2 ba · 2,500 sqft
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Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
Summitly AI estimate for discussion only — not from TRREB or the MLS® feed, and not an appraisal or investment advice. Yield and cap rate are derived from the estimated rent versus the asking price.
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Listing brokerage: HOMECOMFORT REALTY INC., BrokerageMLS® N13773182 · Listing data last updated
Listing data comes from the Toronto Regional Real Estate Board (TRREB) and is deemed reliable but not guaranteed. Shown on Summitly by Coldwell Banker Summit Realty, Brokerage, which is not the listing brokerage. 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. © 2026 Toronto Regional Real Estate Board. All rights reserved.
Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Estimated values, AI insights, calculator results, and rental projections shown on this page are generated by Summitly and are not provided by, reviewed by, or sourced from TRREB, the MLS®, or the listing brokerage; they are not appraisals or opinions of value. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by the Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
Other 6-bed homes for sale in East Gwillimbury around $2.8M.
Homes for sale in East Gwillimbury
Every active East Gwillimbury MLS® listing, updated all day.
Curated MLS® searches this property belongs to — same city, same shape of home.
Based on 169 sales from Jul 30 – Oct 28, 2026 (125 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
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3 Mary Willson Crt is listed at $2,799,000 (MLS® N13773182). Summitly updates the price as soon as the MLS® record changes.
Summitly rates it Good Deal: the asking price is 3% to 10% below Zara's estimate, an estimate built from recent sales in East Gwillimbury. The rating is an automated opinion, not an appraisal; "What's it worth?" on this page shows how it is worked out. See Zara's estimate
No — 3 Mary Willson Crt is still listed at its original asking price of $2,799,000.
3 Mary Willson Crt has 7 bedrooms and 7 bathrooms, with about 5,000 square feet of living space. It is a detached home in East Gwillimbury.
The nearest rapid-transit station is East Gwillimbury GO Station (Barrie GO), about 2.0 km in a straight line. Newmarket GO Station is about 4.0 km. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
About $13,751 a month — principal and interest on $2,799,000 with 20% down ($559,800), a 25-year amortization and an assumed 5.5% interest rate. The mortgage calculator on this page lets you change the down payment, amortization and rate.
Its asking price of $2,799,000 is about 181% above the median sold price in East Gwillimbury over the last 90 days, $995,000, across 169 closed sales on the TRREB MLS®. A city median mixes every type and size of home, so the comparable sales on this page are the closer guide.
Summitly has no earlier MLS® sale or lease of 3 Mary Willson Crt on record from the last two years. Older records aren't shown under TRREB rules.
3 Mary Willson Crt is in East Gwillimbury, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
47 days — 3 Mary Willson Crt was listed on September 11, 2026.
About $560 per square foot: the asking price of $2,799,000 over the 5,000 sq ft the listing gives.
Yes — the listing gives 10 parking spaces. Garage: Yes.
