12199 Guelph Line, Milton

12199 Guelph Line
12199 Guelph Line
12199 Guelph Line
+40
7+3
 bed
8
 bath
18
 parking
3500 - 5000
 sqft
Rural Resid
$4,450,000
For Sale
10 hours
 on site
$4,450,000
Click to open the pre-gallery to get the direction
Size
-
Lot size
3 sqft
Street frontage
-
Possession
2027-02-26
Price per sqft
$890 - $1,271
Taxes
$16,366.77 (2026)
Parking Type
-
Style
2-Storey
See what's nearby
Description
This extensively renovated estate sits on a private, gated 3.51 acres at Guelph Line and 20 Side Road in Campbellville, north of the 401, with 8,299 sq ft of living space over three levels plus a 914 sq ft guest house. The renovation brought new windows, new flooring and hardwood, and custom box ceilings throughout, and the home has 7 fireplaces and 4 kitchens. The main floor opens with a grand foyer, curved staircase and crystal chandelier, then flows to a vaulted office, formal dining room with fireplace and custom built-ins, a living room with windows on three sides , slab feature wall and linear Custom vented Napoleon fireplace, a custom bar with wine storage, and a chef's kitchen with an oversize island, stone countertops, full-height slab backsplash, farmhouse sink and a professional-style range. Walk out from the breakfast area to a two-level rear deck with glass railings. Upstairs are 5 bedrooms and 4 washrooms. The primary suite has its own snug sitting room with fireplace and a walkout to the front balcony, along with a bedroom fireplace, his and hers bathrooms, a walk-in closet and private laundry. The walkout lower level has 2 kitchens and 2 bedrooms, plus a games area, media wall, gym ( could be a 3rd bedroom ) and an in-law suite with its own bathroom, laundry and separate entrance. A detached guest house holds a 2-bedroom apartment with its own kitchen, bathroom, laundry and deck. With three self-contained living spaces on one property, parents, adult children and extended family can live close while keeping their own space. The solar-heated indoor pool makes swimming a year-round habit. Outside, two ponds, mature trees and a fire pit patio surround the home. Indoor parking for 8 vehicles, room for 10 more on the drive, and a wired generator. Flexible possession. Full upgrade list available. Private showings by appointment. Rooms on "Upper level" are in Guest house
Broker: REAL BROKER ONTARIO LTD.
MLS®#: W14139680
Property details
Parking:
18
Parking type:
-
Property type:
Rural Resid
Heating type:
Forced Air
Style:
2-Storey
MLS Size:
3500-5000 sqft
Lot front:
250 Ft
Lot depth:
613 Ft
Listed on:
Nov 2, 2026
Show all details
Rooms
LevelNameSizeFeatures
Second
Bedroom 4
12.4 x 13.3 ft
Second
Bedroom 2
14.0 x 17.9 ft
Second
Bathroom
8.9 x 14.7 ft
Show all
Instant estimate:
orto view instant estimate
$237,585
lower than listed price
i
High
$4,370,826
Mid
$4,212,415
Low
$4,020,238
Have a home? See what it's worth with an instant estimate

Use our AI-assisted tool to get an instant estimate of your home's value, up-to-date neighbourhood sales data, and tips on how to sell for more.

About 12199 Guelph Line

12199 Guelph Line is a Milton rural resid for sale. 12199 Guelph Line has an asking price of $4450000, and has been on the market since November 2026. This 3500-5000 sqft rural resid has 7+3 beds and 8 bathrooms. 12199 Guelph Line resides in the Milton Nassagaweya neighbourhood, and nearby areas include Brookville, Moffat, Rockwood and Acton.

Nearby grocery options: International Meats & Deli is a 27-minute walk.

Getting around the area will require a vehicle, as the nearest transit stop is a Bus Stop (Brock Rd. S. / Old Brock Rd.) and is a 13-minute drive