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For saleMLS® N12903242

21940 Mccowan Road, East Gwillimbury, ON L0G 1M0

Rural East Gwillimbury · L0G 1M0

$2,999,000

$857 / sq ft

7 months on market

Bedrooms
6
Bathrooms
4
Interior
3,500 sf
Parking
13
Lot
990.1 × 1659 ft
Age
31-50 years

What's special

  • Attached garage
  • Central air
  • Fireplace
  • Auto garage door remote
  • Central vacuum
  • Generator - full
  • In-law suite
  • On demand water heater

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About this property

Welcome to a world of luxury and serenity on 37 acres of beautifully treed land, offering privacy, flexibility, and refined living. With over 4500 sqft, this exceptional 6-bedroom, 4-bath estate is perfectly suited for multi-generational living, a home-based business, or those seeking space without compromise. The setting invites both adventure and tranquility, featuring a peaceful pond, gazebo, and a 4-stall barn ready for your hobby farm vision. Whether hosting unforgettable gatherings or enjoying quiet moments, this property adapts effortlessly to your lifestyle. Inside, the great room impresses with soaring two-storey windows and a cozy fireplace that anchors the home with warmth and elegance. The kitchen is both functional and striking, showcasing exotic granite, Sub-Zero refrigeration, and Viking induction and convection cooking, ideal for everyday living and elevated entertaining. The primary suite is a private retreat with a walk-in closet and spa-inspired ensuite complete with heated floors, onyx counters, and a fully tiled steam shower. A standout feature is the separate, above-grade 2-bedroom in-law suite offering comfort and independence for extended family or guests. In addition, a third kitchen, office, and sunroom with private entrance create an ideal home-based business setup, allowing you to work seamlessly without impacting your personal living space. Outdoor living is equally impressive with an expansive deck, pergola, and retractable screens, perfect for summer evenings and effortless entertaining. Located just minutes to Hwy 404, GO Station, and the amenities of Newmarket, this estate offers the perfect balance of peaceful country living with convenient urban access. Complete with a 3-car garage and ample parking, this is a rare opportunity to own a property where lifestyle, flexibility, and opportunity come together.

Rooms

12 rooms. Dimensions as published by the listing brokerage.

Room dimensions and features
RoomLevelDimensionsFeatures
BedroomMain3.50 × 3.20 m11.5 × 10.5 ft—
BedroomMain4.60 × 4.00 m15.1 × 13.1 ft—
Bedroom 2Main3.50 × 3.10 m11.5 × 10.2 ft—
Bedroom 3Main3.50 × 3.10 m11.5 × 10.2 ft—
KitchenMain8.10 × 10.80 m26.6 × 35.4 ftB/I Microwave · Combined w/Dining · Granite Counters
Family RoomMain4.30 × 7.70 m14.1 × 25.3 ftFireplace · Fireplace Insert
Primary BedroomMain5.60 × 4.70 m18.4 × 15.4 ft5 Pc Ensuite · Walk-In Closet(s) · Heated Floor
OfficeMain3.80 × 5.20 m12.5 × 17.1 ft—
KitchenMain4.20 × 2.90 m13.8 × 9.5 ft—
SunroomMain4.00 × 6.50 m13.1 × 21.3 ftAccess To Garage
Great RoomGround8.40 × 5.80 m27.6 × 19.0 ftBar Sink · Closed Fireplace · Large Window
Bedroom 5Second3.50 × 3.20 m11.5 × 10.5 ft—

Features

  • None
  • Auto Garage Door Remote
  • Central Vacuum
  • Generator - Full
  • In-Law Suite
  • On Demand Water Heater
  • Primary Bedroom - Main Floor
  • Sump Pump
  • Water Heater Owned

Property details

Property

Property type
detached
Bedrooms
6
Bathrooms
4
Interior size
3,500 sq ft
Year built
31-50
Lot size
990.1 × 1659 ft
Zoning
RU
Possession
flexible

Interior

Basement
Partial Basement
Heating
Forced Air · Propane
Cooling
Central Air
Fireplaces
1
Exposure
East

Exterior & services

Construction
Brick
Garage
Attached
Parking spaces
13
Water
Drilled Well
Sewer
Septic

Costs

List price
$2,999,000
Property taxes
$12,030 / year (2025)
Price per sq ft
$857
Rental items
propane tank, water treatment

Listing

MLS® number
N12903242
Status
For sale
Listed
March 20, 2026
Days on market
230
Last updated
March 20, 2026
Listing brokerage
RE/MAX HALLMARK CHAY REALTY

Price & sale history

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Before you make an offer

What this home costs beyond the asking price, and how that price compares to what else is on the market.

How this price compares

This home is priced above most comparable listings — about 78% of comparable detached listings in Rural East Gwillimbury are asking less.

$859KMedian $1.79M$3.56M
This home
$857 / sq ft
Comparable median
$939 / sq ft

Based on 37 comparable active detached listings in Rural East Gwillimbury. These are asking prices, not sale prices.

Mortgage estimate

Down payment20.0% · minimum $599,800
$599,800
Interest rate5-year fixed, illustrative only
4.49%
Amortization
Principal & interest
$13,265.59
Property tax (est.)
$1,002.48
Estimated monthly
$14,268

Estimate only. Excludes CMHC insurance premiums, which apply below 20% down, and does not constitute a mortgage approval or an offer of credit.

Land transfer tax

Payable on closing, on top of the purchase price.

Ontario
$61,450
Total due on closing
$61,450

An estimate on the asking price of $2,999,000. Rates current as of September 2026; confirm the final figure with your real estate lawyer.

Listing courtesy of RE/MAX HALLMARK CHAY REALTY. Listing data is provided in part by the Toronto Regional Real Estate Board (TRREB) and is deemed reliable but is not guaranteed accurate. Information is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. Data is updated every 15 minutes.

$2,999,000

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