12199 Guelph Line
Rural Milton West · Milton, ON L0P 1B0
Listing brokerage: REAL BROKER ONTARIO LTD.
Asking price
$4,450,000
Key facts
- DetachedProperty type
- 10Bedrooms
- 8Bathrooms
- 18 spacesParking
- 4,250 sq ftLiving space
- 250.38 ftLot frontage
- Nov 2, 2026Listed
- 6 daysOn market
- W14139680MLS® number
About this home
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
Price history
- Listed$4,450,000
Location
12199 Guelph Line, Milton
Schools & transit
School locations and boards shown from open data. We do not publish rankings; any future scores will be sourced, dated and shown factually.
Nearby schools
- Brookville Public SchoolHalton DSB · Elementary · 2.5 km in a straight lineBoundary data unavailable for this board — we don't guess catchment lines.
- Walnut Forest AcademyPrivate · Elementary · 6.7 km in a straight lineBoundary data unavailable for this board — we don't guess catchment lines.
- Ecole Harris Mill Public SchoolUpper Grand DSB · Elementary · 8.2 km in a straight lineBoundary data unavailable for this board — we don't guess catchment lines.
Nearby transit
Lines nearby: 31, 33
- Main St. S. @ MacLennan St.GO Transit · 8.2 km in a straight line · about 103 min walk (estimate) · 31, 33
- Main St. S. @ Dunbar St.GO Transit · 8.3 km in a straight line · about 104 min walk (estimate) · 31, 33
- Main St. S. @ Ridge Rd.GO Transit · 8.5 km in a straight line · about 106 min walk (estimate) · 31, 33
Sources
- Contains information licensed under the Open Government Licence – Ontario. Source: Ontario Ministry of Education.
- Data used in this product or service is provided with the permission of Metrolinx. Metrolinx makes no representations or warranties of any kind, express or implied, with respect to the Data and assumes no responsibility for the accuracy or currency of the data used in this product or service.
- Adapted from Statistics Canada, National Address Register, 2024-05-11. This does not constitute an endorsement by Statistics Canada of this product.
MLS® #W14139680
Last updated Nov 5, 2026
MLS®, Multiple Listing Service®, and the associated logos are owned by The Canadian Real Estate Association (CREA)/the applicable board and identify the quality of services provided by real estate professionals who are members.
Listing data is provided under licence by the Toronto Regional Real Estate Board and is deemed reliable but not guaranteed accurate.



