$4,450,000
12199 Guelph Line
Milton, ON L0P 1B0
12199 Guelph Line, Milton — Listed at $4,450,000. 10 bedroom, 8 bathroom 2-Storey Rural Residential. MLS® W14139680.
Possession · seller's timeline
90+ days (Flexible)
What's this home worth?
Get a free estimate for 12199 Guelph Line
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
Property Details
Property Insights
Listing Courtesy of: REAL BROKER ONTARIO LTD.
MLS® #W14139680


The listing data is provided under copyright by the Toronto Regional Real Estate Board (TRREB). The listing data is deemed reliable but is not guaranteed accurate by TRREB. 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 trademarks MLS®, Multiple Listing Service® and the associated logos are owned by CREA and identify the quality of services provided by real estate professionals who are members of CREA. Used under license.
© 2026 Toronto Regional Real Estate Board. All rights reserved.
HouseIndex Take: 12199 Guelph Line
This rural residential (2-Storey) is located in the Rural Milton West neighbourhood of Milton.
The home offers 10+3 bedrooms, 8 bathrooms.
Features include a finished with walk-out, separate entrance, apartment, finished basement, 18 parking spaces including a 8-car garage, a fireplace.
Additional details: lot dimensions of 250.38 × 613.8 feet.
Listed at $4,450,000 CAD with annual property taxes of $16,366.77 (2026).
Explore similar listings:
Similar Listings in Milton
No close matches are available to show for the same property type, city and sale or lease category within 5% of this asking price. Explore other price ranges below without changing those categories.
About Milton Real Estate
This Rural Residential is located in the Rural Milton West community in Milton. Milton is one of Canada's fastest-growing towns, nestled against the Niagara Escarpment in Halton Region. New master-planned communities offer modern homes at competitive prices, while the historic downtown retains small-town character. Milton GO provides commuter access, and the escarpment trails are a draw for outdoor enthusiasts.

















































