Duplexs for Sale in Cornwall, ON

Explore verified property listings in Cornwall, Ontario with real-time MLS® updates and photos.

home_work 8 listings
All Cornwall Houses Condos Townhouses

analytics Cornwall Duplex Market Snapshot

Real-time MLS® pricing and availability for duplexs in Cornwall, Ontario.

verified Live MLS® • Nov 2026 8 of 129 Cornwall homes
Active Duplexs
8
In Cornwall MLS®
Average Price
$164,725
Avg. duplex price
Lowest Price
$115,000
Most affordable
Highest Price
$229,900
Top luxury listing
Compare with other property types in Cornwall: View all 129 Cornwall listings →
Houses
Avg: $270,792
106
Townhouses
Avg: $215,150
8
Duplexes check_circle
Avg: $164,725
8
Condos & Apartments
Avg: $217,133
3
Fourplexes
Avg: $238,700
2
Others
Avg: $1,090,000
1
Triplexes
Avg: $399,900
1

As of November 2026, there are 8 active duplexs for sale in Cornwall, ON (out of 129 total real estate listings in the city). Asking prices for duplexs span from $115,000 to $229,900, with an average price of $164,725.

—
Duplex for Sale at 410-410a St Felix Street, Cornwall, ON - MLS® #1115916
$165,000
Approx. price as of Jul 2018
Duplex

410-410a St Felix Street

location_on Cornwall, ON · K6H5A8
square_foot 33.01 ft X 131.79 ft
Duplex for Sale at 17 Alice Street, Cornwall, ON - MLS® #1115360
$210,000
Approx. price as of Jul 2018
Duplex

17 Alice Street

location_on Cornwall, ON · K6H4R4
square_foot 49.96 ft X 88.78 ft
Duplex for Sale at 602-604 Walton Street, Cornwall, ON - MLS® #1086025
$125,000
Approx. price as of Dec 2017
Duplex

602-604 Walton Street

location_on Cornwall, ON · K6H1T6
square_foot 30 ft X 100 ft
Duplex for Sale at 1229-1231 Dunkirk Street, Cornwall, ON - MLS® #1075123
$219,000
Approx. price as of Aug 2017
Duplex

1229-1231 Dunkirk Street

location_on Cornwall, ON · K6H3K6
square_foot 60 ft X 85.54 ft
Duplex for Sale at 109-111 Park Street, Cornwall, ON - MLS® #1067939
$229,900
Approx. price as of Jul 2017
Duplex

109-111 Park Street

location_on Cornwall, ON · K6H1K4
square_foot 50 ft X 90.87 ft (Irregular Lot)
Duplex for Sale at 39-41 Gulf Street, Cornwall, ON - MLS® #1067579
$125,000
Approx. price as of Jul 2017
Duplex

39-41 Gulf Street

location_on Cornwall, ON · K6J4N3
square_foot 50 ft X 110 ft
Duplex for Sale at 52 Danis Avenue, Cornwall, ON - MLS® #1066843
$115,000
Approx. price as of Jul 2017
Duplex

52 Danis Avenue

location_on Cornwall, ON · K6H5E3
square_foot 25 ft X 125 ft
Duplex for Sale at 19-21 Menard Street, Cornwall, ON - MLS® #1063318
$128,900
Approx. price as of Jun 2017
Duplex

19-21 Menard Street

location_on Cornwall, ON · K6H4K2
square_foot 25 ft X 74 ft

Explore More Cities in Ontario

Windsor (35) Ottawa (22) London (19) Kitchener (12) Peterborough (11) Sudbury (9) Orillia (9) Timmins (8) Cornwall (8) Cambridge (7) Sault Ste. Marie (7) Niagara Falls (7) Brantford (7) St. Catharines (7) St. Thomas (6) Guelph (6) Kingston (6) Chatham (6) Owen Sound (6) Temiskaming Shores (5) Belleville (5) Welland (5) Woodstock (4) Simcoe (4)

near_me Explore Real Estate in Cities Near Cornwall

Compare verified duplexs listings and market activity in adjacent Ontario communities.

All Ontario Cities arrow_forward
Ottawa 2,272 active arrow_outward London 1,089 active arrow_outward Windsor 713 active arrow_outward St. Catharines 570 active arrow_outward Toronto 531 active arrow_outward Oakville 500 active arrow_outward Kitchener 462 active arrow_outward Kingston 441 active arrow_outward Guelph 405 active arrow_outward Niagara Falls 384 active arrow_outward Barrie 314 active arrow_outward Brantford 314 active arrow_outward

travel_explore Popular Searches in Cornwall

By Bedrooms

By Price Range

Property Types

help_outline Frequently Asked Questions

Common questions about buying duplexs in Cornwall.

What is the average price for Duplexs in Cornwall? expand_more

Property prices for Duplexs in Cornwall range from affordable entry-level opportunities to premium luxury estates. Real estate values vary based on neighbourhood, square footage, building condition, and local market trends across Canada.

How many Duplex listings are currently available in Cornwall? expand_more

There are currently 8 active Duplex listings available in Cornwall, updated continuously on PLSRealEstate.com.

How can I save favorite properties and track price adjustments? expand_more

Click the heart icon on any property card to save listings to your browser's local storage. Your favorites are saved instantly with no account registration or passwords required.

How often are property listings updated on PLSRealEstate? expand_more

PLSRealEstate refreshes property listings daily from participating MLS® data feeds across all 11 Canadian provinces and territories, guaranteeing timely pricing and availability.

Can I list my own Canadian home for sale on PLSRealEstate? expand_more

Yes. Use our 'List Property' feature to submit your home, condo, or land listing for review and publication across Canada.