181 Ontario Street Cobourg, ON K9A 3B6
Listing Courtesy of: PropTX - IDX / Listed By: Re/Max Rouge River Realty Ltd.

  181 Ontario Street Cobourg, ON K9A 3B6

Active
$1,875,000 (CAD)
4
BED
3
BATH
3000-3500
SQFT

Description

Welcome to 181 Ontario Street, The Sonning House, one of Cobourg's most prominent historic estates. Originally constructed in 1840 by the Burnet Brothers-the legendary builders behind Victoria Hall, during Cobourg's prosperous pre-Confederation boom. Today, this stunning Georgian Revival stands as a pristine landmark of the era, beautifully restored and seamlessly upgraded with modern efficiencies. This home exudes the grandeur of the bygone era, complemented by a glamorous, and stylish aesthetic. You're captivated the moment you step into the stunning central hall plan, with a grand staircase and soaring 10.5-foot main-floor ceilings adorned with intricate plaster crown molding. Generous, light-filled principal rooms flow effortlessly with opulent details. The sumptuous dining room will host the celebrations and elegant dinner parties, inviting you to linger. The heart of the home is a striking, modern kitchen complete with custom cabinetry and an oversized stone island designed for effortless entertaining. Contemporary conveniences include a main-floor laundry room and a mudroom with direct access to a rare 2-car attached garage. Upstairs, the grandeur continues with remarkable 11.5-foot ceilings and four spacious bedrooms. Oversized windows provide generous views and abundant natural light. The elegant primary suite features a walk-in closet and a luxurious ensuite. Positioned on a gracious, oversized corner lot, this property offers unmatched outdoor living space in the heart of town, adorned with magnificent, mature trees and perennial gardens. Expansive decking and an elegant pergola provide the perfect space for dining al fresco, entertaining, or quiet gatherings. The generous south lawn features a charming cottage for garden storage and a beautiful fieldstone fire pit, perfect for cool evening gatherings. Located just steps from Lake Ontario and the West Beach boardwalk, The Sonning House is the perfect blend of historic romance and modern luxury.

MLS®:
X13415040
Taxes
$9,307(2026)
Type
Single-Family Home
Style
2-Storey
County
Northumberland County
Community
Cobourg

Listed By

Re/Max Rouge River Realty Ltd.
Source
PropTX - IDX
Last checked Aug 28 2026 at 2:05 PM EDT
Bathroom Details
Interior Features
  • Bar Fridge
  • Auto Garage Door Remote
  • Carpet Free
  • On Demand Water Heater
Property Features
  • Fireplace: Other
  • Foundation: Stone
Heating and Cooling
  • Radiant
  • Window Unit(s)
Basement Information
  • Partially Finished
Pool Information
  • None
Exterior Features
  • Brick
  • Board & Batten
  • Roof: Asphalt Shingle
Utility Information
  • Sewer: Sewer
  • Fuel: Gas
  • Energy: Energy Certificate: No
Garage
  • Attached
Parking
  • Private Double
Stories
  • 2
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Disclaimer: Copyright 2026 Toronto IDX. All rights reserved. This information is deemed reliable, but not guaranteed. The information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated 8/28/26 07:05