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Acreage · Milton · Halton

12199 Guelph Line, Milton, ON L0P 1B0

$4,499,000

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Photos courtesy of REAL BROKER ONTARIO LTD. · via the TRREB MLS® feed

3.5 acLot, per MLS® listing
10Beds
8Baths
3,500–5,000Sq ft (approx.)

Overview

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

PondWell
Property typeAcreage
Annual taxes$16,367 (2026)
Living area (approx.)3,500–5,000 sq ft
Parking18 spaces
Style2-Storey
ListedListed 13 days ago
Postal codeL0P1B0

The land

Acreage (per MLS® listing)3.5 acres
Frontage250 ft
Lot (as listed)250.38 × 613.8 ft

Acreage and lot dimensions are the figures in the MLS® listing. The listing's description may quote a different total (for example when several parcels are offered together).

Survey sketch

250 FT FRONTAGE (ROAD) 614 FT 3.5 ac N SKETCH ONLY, NOT A SURVEY · NOT TO SCALE WITH ADJACENT LOTS · ORIENTATION ASSUMED

Sketch only, not a survey. Drawn from the frontage and depth in the MLS® listing. Lot shapes are rarely perfect rectangles; ask for the reference plan.

Systems

WaterDrilled Well
SewageSeptic
HeatingForced Air
Heat sourcePropane
CoolingCentral Air
ConstructionBrick, Stucco (Plaster)
RoofAsphalt Shingle
REALTOR® logo MLS® Multiple Listing Service® logo

MLS® W14139680 · Listing courtesy of REAL BROKER ONTARIO LTD.

Last updated November 14, 2026 from the TRREB MLS® feed.

Listing information is deemed reliable but not guaranteed. The trademarks MLS®, Multiple Listing Service® and the associated logos are owned by The Canadian Real Estate Association (CREA) and identify the quality of services provided by real estate professionals who are members of CREA. Used under license. The trademarks REALTOR®, REALTORS® and the REALTOR® logo are controlled by CREA and identify real estate professionals who are members of CREA.

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