181 Ontario Street
Cobourg, ON
- 4 bed
- 3 bath
- approx. 3000-3500 sqft
- Detached
- 103 days on market
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.
Virtual Tour
Virtual Tour Available
Listing Details
- Taxes (2026)
- $9,307
- Listed
- June 8, 2026
Price History
Property
- Style
- 2-Storey
- Age
- 100+
- Construction
- Brick, Board & Batten
- Roof
- Asphalt Shingle
- Foundation
- Stone
- Interior
- Auto Garage Door Remote, Bar Fridge, Carpet Free, On Demand Water Heater
- Lot Size
- 165.4 x 162.66 Feet
Parking
- Garage
- Attached
- Covered Spaces
- 2
- Total Parking
- 8
Utilities
- Sewer
- Sewer
- Heat Source
- Gas
Location & Legal
- Cross Street
- Tweed
- Zoning
- RES
- Parcel Number
- 510910190
- Possession
- Flexible
- Occupancy
- Owner
Included
- Inclusions
- All appliances, window coverings, electric light fixtures
- Exclusions
- Primary bedroom drapery panels, Miele wall unit (to be replaced with a microwave)
- Rental Items
- NIL
Schools
Elementary
- St. Michael Catholic Elementary School0.9 km
Catholic · Peterborough Victoria Northum Clarington CDSB · 160 students
Grade 3 reading: 89% met the provincial standard · Grade 6 math: 44% met the provincial standard
- Burnham Public School1.3 km
Public · Kawartha Pine Ridge DSB · 275 students
Grade 3 reading: 87% met the provincial standard · Grade 6 math: 56% met the provincial standard
- Notre Dame Catholic Elementary School1.5 km
Catholic · Peterborough Victoria Northum Clarington CDSB · 155 students
Grade 3 reading: 82% met the provincial standard · Grade 6 math: 65% met the provincial standard
Secondary
- Cobourg Collegiate Institute1.9 km
Public · Kawartha Pine Ridge DSB · 1110 students
Grade 10 literacy: 81% met the provincial standard
- Centre for Individual Studies Northumberland2.4 km
Public · Kawartha Pine Ridge DSB · 115 students
- St. Mary Catholic Secondary School2.9 km
Catholic · Peterborough Victoria Northum Clarington CDSB · 835 students
Grade 10 literacy: 75% met the provincial standard
Straight-line distance. Nearby schools are not necessarily the assigned schools — confirm catchment with the school board. Scores are EQAO provincial test results for 2024-2025.
Community
Postal area K9A
- Population
- 26,757
- Private dwellings
- 11,937
- Median age
- 53.2
- Average household size
- 2.3
- Median household income
- $82,000
Source: Statistics Canada, 2021 Census of Population, catalogue 98-401-X2021013. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada of this product.
Local market
Residential Freehold in Cobourg · last 12 months
- Median sold price
- $637,500
- Homes sold
- 355
- Median days on market
- 27
- Sale-to-list price
- 97.5%
Based on 355 recorded sales of residential freehold properties in Cobourg over the last 12 months.
Rooms
3-piece on Main, 3-piece on Second, 4-piece on Second
Second
- Bathroom9'6" x 8'
- Bathroom9'8" x 9'6"
- Bedroom 217'8" x 15'9"
- Bedroom 315'8" x 13'9"
- Bedroom 416'1" x 14'7"
- Primary Bedroom20'8" x 16'1"
Main
- Bathroom8'2" x 6'11"
- Dining Room17'2" x 15'8"
- Family Room17'1" x 15'9"
- Foyer34'7" x 8'
- Kitchen16'1" x 14'1"
- Living Room20'6" x 16'1"
- Mud Room8'2" x 8'2"
Listed by
RE/MAX Rouge River Realty Ltd.
Walk Score
Walk Score is unavailable for this address right now.
Location
Street View
Mortgage Calculator
$375,000
Estimated Monthly Payment
$9,211
Land transfer tax
Ontario land transfer tax only. An estimate — not legal or financial advice. Municipal land transfer tax applies in Toronto and is not included.
Investment Analysis
No recent nearby lease data. Enter a rent to see the numbers.
Mortgage: $9,211/mo (20% down, 5.5%)
Taxes: $776/mo · Insurance: $469/mo
Estimates only. Consult a financial advisor.
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