For Sale: 12199 Guelph Line, Milton, ON - REW
Boost your listing
Listing featured. Your listing will be featured on REW.
View featured placement
$4,450,000
7 + 3 bd • 8 ba • 3500 - 4999 sf • House
12199 Guelph Line
Street ViewDirections
$4,450,000
Get pre-approved

12199 Guelph LineMilton, ON, L0P 1B0

Nassagaweya
  • 7 + 3 Bed
  • 8 Bath
  • 3500 - 4999 Sqft
  • House

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 (id:63626)
Listed by: KATHERINE MAUREEN BARNETT, Broker, Real Broker Ontario Ltd.

Home facts and features

Price details
List Price
$4,450,000
Get Pre-Approved
Gross Taxes for 2026
$16,367
Home facts
Bedrooms
7 + 3
Full Bathrooms
8
Parking Spaces
18
Parking Details
Garage, Attached Garage
Property Type
House
Lot Size
250 ft x 613 ft (3.53 acres)
Depth
613.8 feet
Frontage
250.4 feet
Exterior Finish
Brick, Stucco
Heating Type
Forced air, Propane
Cooling
Central air conditioning
Pool
Indoor Pool
Basement Details
Finished, Apartment in basement, Separate entrance, Walk out, , ,
Features
Carpet Free, Country residential, Fireplace(s), In-Law Suite, Separate Electricity Meters, Sump Pump
Appliances
Dishwasher, Dryer, Garage door opener, Microwave, Oven - Built-In, Refrigerator, Stove, Washer, Water Heater, Water Treatment, Water softener, Window Coverings
Community
Agent details
Primary Agent
Primary Broker
Real Broker Ontario Ltd.
Listing details
Days on REW
1 Day
MLS® Number
W14139680
Source
Canadian Real Estate Association
Is this your listing? Help it to stand out.

Mortgage Calculator

provided by REW Digital Ltd
Estimated Payments
Purchase Price
Mortgage Total
Down Payment
Amortization
25 Years
Interest Rate
3.99%

Connect with our mortgage partner

Frank Mortgage

Frank Mortgage

Canada's No Fee Mortgage Marketplace

Online mortgage broker offering quick and simple access to Canada's top lenders – compare rates and complete your mortgage in a secure online environment

Connect with a mortgage expert

Connect to a mortgage specialist

Frank Mortgage
Canada's No Fee Mortgage Marketplace

They will connect with you to understand where you are in your journey and how they can best guide you.

  • %
Name*
Email*
Phone*
Purchase City*
What best describes your current situation?
Loan Details
Amortization
Years
Mortgage Amount
Down Payment

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

By proceeding, you consent to receive communications using the methods provided, from REW.ca and our partners about your inquiry and other home-related matters to assist you in your search, but not as a condition of any purchase. Please note that our agent partners are not affiliated with REW Realty.

The displayed rates are provided as guidance only, are not guaranteed, or are to be considered an approval of credit. Approval will be based solely on your personal situation. You are encouraged to speak with a Mortgage Professional for the most accurate information and to determine your eligibility.

The displayed rates are provided as guidance only, are not guaranteed, or are to be considered an approval of credit. Approval will be based solely on your personal situation. You are encouraged to speak with a Mortgage Professional for the most accurate information and to determine your eligibility.

Property Insights

Brookville Public School
  • Public
  • JK - 8
Hitherfield School
  • Private
  • JK - 8
School catchments and distances are intended to be used as reference only. To verify enrolment eligibility for a property, contact the school directly.Report Incorrect Info
Report Incorrect Info
Full Name*
Email*
Select School
Reason

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

By proceeding, you consent to receive communications using the methods provided, from REW.ca and our partners about your inquiry and other home-related matters to assist you in your search, but not as a condition of any purchase. Please note that our agent partners are not affiliated with REW Realty.
Thank You!
We really appreciate your help improving our home search experience. Our team will look into this issue as soon as possible.
Close

Cities near Nassagaweya

Neighborhoods near Nassagaweya

Listing data is subject to copyright, disclaimer, and additional requirements from the data provider. See our Terms of Use for terms applicable to this listing. Listing data was last updated on 2026-11-02.
Call Agent
Broker
Katherine Barnett
Phone:
416-856-5161
Cell:
416-856-5161
Office:
888-311-1172
Share this Property
Text Message
Share this Property
Recipient Email Address*
Your Name
Your Email Address*

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

By proceeding, you consent to receive communications using the methods provided, from REW.ca and our partners about your inquiry and other home-related matters to assist you in your search, but not as a condition of any purchase. Please note that our agent partners are not affiliated with REW Realty.
We use cookies and other technologies for functionality, security, and to provide you with a personalized experience on our online services. By continuing to use our online services, you agree to our Privacy Policy and Terms of Use. For information on how to adjust your privacy settings, visit our Cookie Policy.
Dismiss