Forgot password Extend Verify Contact

181 Ontario Street
Cobourg Cobourg K9A 3B6

$1,875,000
Residential Freehold beds: 4 baths: 3.0

Main Photo: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 1: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 2: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 3: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 4: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 5: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 6: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 7: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 8: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 9: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 10: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 11: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 12: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 13: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 14: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 15: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 16: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 17: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 18: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 19: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 20: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 21: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 22: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 23: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 24: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 25: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 26: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 27: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 28: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 29: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 30: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 31: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 32: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 33: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 34: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 35: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 36: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 37: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 38: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 39: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 40: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 41: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 42: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 43: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 44: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 45: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 46: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 47: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 48: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 49: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Photo 50: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
Status:
Active
Prop. Type:
Residential Freehold
MLS® Num:
X13415040
Bedrooms:
4
Bathrooms:
3
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.
Property Type:
Residential Freehold
Property Sub Type:
Detached
Home Style:
2-Storey
Approx. Age:
100+
Total Approx Floor Area:
3000-3500
Lot Depth:
162'8"
Lot Frontage:
165'5"
Lot Shape:
Irregular
Direction Faces:
West
Bedrooms:
4
Bathrooms:
3.0
Water supply:
Municipal
Kitchens:
1
Bedrooms Above Grade:
4
Kitchens Above Grade:
1
Rooms Above Grade:
13
Fractional Ownership:
No
Zoning:
RES
Assignment:
No
Heating type:
Radiant
Heating Fuel:
Gas
Fireplaces:
3
Foundation:
Stone
Roof:
Asphalt Shingle
Basement:
Partially Finished
Fireplace Features:
Other
Fireplace/Stove:
Yes
Garage:
Attached
Garage Spaces:
2.0
Other Structures:
Garden Shed
Parking Features:
Private Double
Parking Spaces:
6
Total Parking Spaces:
8.0
Family Room:
Yes
Possession Details:
Flexible
Pool:
None
Link:
No
HST Applicable To Sale Price:
Included In
Assessment Year:
2025
Taxes:
$9,307 / 2026
Assessment:
$- / 2025
Northumberland
Cobourg
Cobourg
Beach, Golf, Hospital, Marina, Park, School
Auto Garage Door Remote, Bar Fridge, Carpet Free, On Demand Water Heater
Landscaped, Privacy, Porch
Alarm System
NIL
All appliances, window coverings, electric light fixtures
Primary bedroom drapery panels, Miele wall unit (to be replaced with a microwave)
None
Brick, Board & Batten
Floor
Type
Size
Other
Main
Living Room
20'6" × 16'1"
Main
Kitchen
16'1" × 14'1"
Main
Dining Room
17'2" × 15'8"
Main
Family Room
17'1" × 15'9"
Main
Foyer
34'7" × 8'
Main
Mud Room
8'2" × 8'2"
Second
Primary Bedroom
20'8" × 16'1"
Second
Bedroom 2
17'8" × 15'9"
Second
Bedroom 3
15'8" × 13'9"
Second
Bedroom 4
16'1" × 14'7"
Floor
Ensuite
Pieces
Other
Main
No
3
8'2" x 6'11" 3 Pc Bath
Second
Yes
4
9'8" x 9'6" 4 Pc Ensuite
Second
No
3
9'6" x 8' 3 Pc Bath
Utilities Cable:
Yes
Utilities Gas:
Yes
Utilities Hydro:
Yes
Utilities Water:
Yes
Sewers:
Yes
Energy Certification:
No
Green Property Information Statement:
No
Special Designation:
Heritage
Sewers:
Sewer
Air Conditioning:
Window Unit(s)
Central Vacuum:
No
Seller Property Info Statement:
No
Laundry Level:
Main Level
Date Listed:
Jun 08, 2026
Original Price:
Previous Price:
  • Photo 1: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 1 of 50
  • Photo 2: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 2 of 50
  • Photo 3: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 3 of 50
  • Photo 4: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 4 of 50
  • Photo 5: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 5 of 50
  • Photo 6: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 6 of 50
  • Photo 7: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 7 of 50
  • Photo 8: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 8 of 50
  • Photo 9: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 9 of 50
  • Photo 10: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 10 of 50
  • Photo 11: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 11 of 50
  • Photo 12: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 12 of 50
  • Photo 13: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 13 of 50
  • Photo 14: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 14 of 50
  • Photo 15: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 15 of 50
  • Photo 16: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 16 of 50
  • Photo 17: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 17 of 50
  • Photo 18: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 18 of 50
  • Photo 19: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 19 of 50
  • Photo 20: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 20 of 50
  • Photo 21: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 21 of 50
  • Photo 22: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 22 of 50
  • Photo 23: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 23 of 50
  • Photo 24: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 24 of 50
  • Photo 25: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 25 of 50
  • Photo 26: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 26 of 50
  • Photo 27: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 27 of 50
  • Photo 28: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 28 of 50
  • Photo 29: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 29 of 50
  • Photo 30: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 30 of 50
  • Photo 31: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 31 of 50
  • Photo 32: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 32 of 50
  • Photo 33: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 33 of 50
  • Photo 34: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 34 of 50
  • Photo 35: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 35 of 50
  • Photo 36: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 36 of 50
  • Photo 37: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 37 of 50
  • Photo 38: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 38 of 50
  • Photo 39: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 39 of 50
  • Photo 40: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 40 of 50
  • Photo 41: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 41 of 50
  • Photo 42: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 42 of 50
  • Photo 43: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 43 of 50
  • Photo 44: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 44 of 50
  • Photo 45: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 45 of 50
  • Photo 46: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 46 of 50
  • Photo 47: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 47 of 50
  • Photo 48: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 48 of 50
  • Photo 49: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 49 of 50
  • Photo 50: 181 Ontario Street: Cobourg House for sale : MLS®# X13415040
    Photo 50 of 50

Virtual Tour

Listed by RE/MAX Rouge River Realty Ltd.
Data was last updated June 16, 2026 at 02:15 AM (UTC)
Area Statistics
Listings on market:
137
Avg list price:
$785,000
Min list price:
$369,000
Max list price:
$3,975,000
Avg days on market:
31
Min days on market:
1
Max days on market:
223
These statistics are generated based on the current listing's property type and located in Cobourg. Average values are derived using median calculations. This data is not produced by the MLS® system.
This website may only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate of the type being offered via the website. The data relating to real estate on this website comes in part from the MLS® Reciprocity program of the PropTx MLS®. The data is deemed reliable but is not guaranteed to be accurate.