🏢 Multi-Family & Duplex in Cornwall

Multi-Family & Duplex Homes for Sale in Cornwall

Income-generating duplexes, triplexes, and multi-unit investment properties. Browse real-time MLS® listings, updated every 15 minutes with complete photo galleries and price histories.

Active Listings20Properties available
Residential Condo & Other for sale - 2 Bed, 2 Bath Home at 321 Water Street Cornwall ON listed at $495,000 (MLS# X14110202)
Added 1 day ago
$495,000Est. $1,648/mo
2bd
2ba
Residential Condo & Other

321 Water Street, Unit 2, Cornwall

Oct 23, 2026
DOM: 2

Wow! A must see, two bedroom condominium on the third floor facing south with views of the Lameroulx...

MLS#: X14110202
For Sale
Residential Freehold for sale - 7 Bed, 4 Bath Home at 117 First Street Cornwall ON listed at $799,500 (MLS# X14106156)
Added 2 days ago
$799,500Est. $2,661/mo
7bd
4ba
Residential Freehold

117 First Street, Cornwall

Oct 22, 2026
DOM: 3

EXCEPTIONAL INVESTMENT OPPORTUNITY - POTENTIAL FOURPLEX CONVERSION IN DOWNTOWN CORNWALL! Discover th...

MLS#: X14106156
For Sale
Residential Freehold for sale - 4 Bed, 2 Bath Home at 23-23A William Street Cornwall ON listed at $289,000 (MLS# X14112946)
Added 2 days ago
$289,000Est. $962/mo
4bd
2ba
Residential Freehold

23-23A William Street, Cornwall

Oct 22, 2026
DOM: 3

WELL-MAINTAINED OWNER OCCUPIED DUPLEX duplex that has been in the same family since 1955. The main-f...

MLS#: X14112946
For Sale
Residential Freehold for sale - 4 Bed, 2 Bath Home at 21 Arthur Street Cornwall ON listed at $329,900 (MLS# X13870134)
$329,900Est. $1,098/mo
4bd
2ba
Residential Freehold

21 Arthur Street, Cornwall

Oct 7, 2026
DOM: 18

Two - 2 bedroom duplex with excellent long term tenants. Upstairs tenants have been there 9 years. M...

MLS#: X13870134
For Sale
Residential Freehold for sale - 7 Bed, 4 Bath Home at 300 St Felix Street Cornwall ON listed at $489,900 (MLS# X13872186)
$489,900Est. $1,631/mo
7bd
4ba
Residential Freehold

300 St Felix Street, Cornwall

Oct 7, 2026
DOM: 18

Calling all investors! Amazing opportunity to own this fully rented Fourplex. Property includes Two ...

MLS#: X13872186
For Sale
Residential Freehold for sale - 4 Bed, 2 Bath Home at 603 Walton Street Cornwall ON listed at $264,900 (MLS# X13827732)
$264,900Est. $882/mo
4bd
2ba
Residential Freehold

603 Walton Street, Cornwall

Sep 25, 2026
DOM: 30

A great opportunity for investors or buyers looking to live in one unit while generating income from...

MLS#: X13827732
For Sale
Residential Freehold for sale - 4 Bed, 3 Bath Home at 337 St Felix Street Cornwall ON listed at $279,900 (MLS# X13814428)
Price Change
$279,900Est. $932/mo
4bd
3ba
Residential Freehold

337 St Felix Street, Cornwall

Sep 22, 2026
DOM: 33

Welcome investors to this triplex. Main floor unit has 2 bedrooms with a spacious living, kitchen an...

MLS#: X13814428
For Sale
Residential Freehold for sale - 8 Bed, 4 Bath Home at 207 Alice Street Cornwall ON listed at $525,000 (MLS# X13801788)
$525,000Est. $1,748/mo
8bd
4ba
Residential Freehold

207 Alice Street, Cornwall

Sep 18, 2026
DOM: 37

Excellent Fourplex Investment Opportunity - 10%+ Cap Rate! Located just 500m from St. Lawrence Colle...

MLS#: X13801788
For Sale
Residential Freehold for sale - 6 Bed, 2 Bath Home at 95 Lefebvre Avenue Cornwall ON listed at $315,000 (MLS# X13801918)
Price Change
$315,000Est. $1,049/mo
6bd
2ba
Residential Freehold

95 Lefebvre Avenue, Cornwall

Sep 18, 2026
DOM: 37

Excellent Investment Opportunity - 9%+ Cap Rate! Great opportunity for an investor to add a cash-flo...

MLS#: X13801918
For Sale
Residential Freehold for sale - 6 Bed, 4 Bath Home at 107-109 Cumberland Street Cornwall ON listed at $365,000 (MLS# X13773438)
$365,000Est. $1,215/mo
6bd
4ba
Residential Freehold

107-109 Cumberland Street, Cornwall

Sep 11, 2026
DOM: 44

Great investment opportunity! Fully rented side-by-side duplex located in a desirable, family-friend...

MLS#: X13773438
For Sale
Residential Freehold for sale - 6 Bed, 4 Bath Home at 1316 Cumberland Street Cornwall ON listed at $499,900 (MLS# X13769134)
$499,900Est. $1,664/mo
6bd
4ba
Residential Freehold

1316 Cumberland Street, Cornwall

Sep 10, 2026
DOM: 45

1316 Cumberland Street is a strong income producing fourplex bringing in approximately $53,556 in an...

MLS#: X13769134
For Sale
Residential Freehold for sale - 5 Bed, 2 Bath Home at 221 St Felix Street Cornwall ON listed at $324,900 (MLS# X13666638)
$324,900Est. $1,081/mo
5bd
2ba
Residential Freehold

221 St Felix Street, Unit 221-221A, Cornwall

Aug 12, 2026
DOM: 74

Duplex with great cash flow! Generating a gross revenue of $32700.00. Main floor has 3 bedrooms and ...

MLS#: X13666638
For Sale
Residential Freehold for sale - 6 Bed, 4 Bath Home at 1448 St Michel Avenue Cornwall ON listed at $585,000 (MLS# X13654788)
Price Change
$585,000Est. $1,947/mo
6bd
4ba
Residential Freehold

1448 St Michel Avenue, Cornwall

Aug 8, 2026
DOM: 78

Prime multi unit investment opportunity in a great location in Cornwall! This turn key fourplex feat...

MLS#: X13654788
For Sale
Residential Freehold for sale - 6 Bed, 4 Bath Home at 1450 St Michel Avenue Cornwall ON listed at $585,000 (MLS# X13654790)
Price Change
$585,000Est. $1,947/mo
6bd
4ba
Residential Freehold

1450 St Michel Avenue, Cornwall

Aug 8, 2026
DOM: 78

Prime multi unit investment opportunity in a great location in Cornwall! This turn key fourplex feat...

MLS#: X13654790
For Sale
Residential Freehold for sale - 6 Bed, 4 Bath Home at 1452 St Michel Avenue Cornwall ON listed at $585,000 (MLS# X13654796)
Price Change
$585,000Est. $1,947/mo
6bd
4ba
Residential Freehold

1452 St Michel Avenue, Cornwall

Aug 8, 2026
DOM: 78

Prime multi unit investment opportunity in a great location in Cornwall! This turn key fourplex feat...

MLS#: X13654796
For Sale
Residential Freehold for sale - 6 Bed, 2 Bath Home at 122 New Street Cornwall ON listed at $375,000 (MLS# X13473244)
$375,000Est. $1,248/mo
6bd
2ba
Residential Freehold

122 New Street, Cornwall

Jun 22, 2026
DOM: 125

Welcome to 122-124 New Street! This two storey duplex features two spacious 3-bedroom units, with th...

MLS#: X13473244
For Sale
Residential Freehold for sale - 4 Bed, 2 Bath Home at 228 McConnell Avenue Cornwall ON listed at $244,900 (MLS# X13470336)
Price Change
$244,900Est. $815/mo
4bd
2ba
Residential Freehold

228 McConnell Avenue, Cornwall

Jun 19, 2026
DOM: 128

Excellent investment opportunity, close to all amenities and the college. Each unit 2 bedrooms and i...

MLS#: X13470336
For Sale
Residential Freehold for sale - 7 Bed, 3 Bath Home at 306 Marlborough Street Cornwall ON listed at $399,000 (MLS# X13169918)
Price Change
$399,000Est. $1,328/mo
7bd
3ba
Residential Freehold

306 Marlborough Street, Cornwall

May 25, 2026
DOM: 153

Located in the desirable Marlborough neighbourhood, directly across from the Joe St. Denis Football ...

MLS#: X13169918
For Sale
Residential Condo & Other for sale - 1 Bed, 1 Bath Home at 308 Second Street Cornwall ON listed at $243,900 (MLS# X13017684)
Price Change
$243,900Est. $812/mo
1bd
1ba
Residential Condo & Other

308 Second Street, Unit 804, Cornwall

Apr 19, 2026
DOM: 189

Welcome to the Panoramic Towers. A well maintained classic building near the heart of downtown, wait...

MLS#: X13017684
For Sale
Residential Freehold for sale - 3 Bed, 4 Bath Home at 166 Montreal Road Cornwall ON listed at $449,000 (MLS# X12596700)
Price Change
$449,000Est. $1,495/mo
3bd
4ba
Residential Freehold

166 Montreal Road, Cornwall

Dec 2, 2025
DOM: 327

Welcome to le Village of Cornwall This 3 residential ( Fully Tenanted ) and one vacant commercial un...

MLS#: X12596700
For Sale
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Frequently Asked Questions

Multi-Family, Duplex & Triplex Properties in Cornwall FAQs

How often are multi-family, duplex & triplex properties updated for Cornwall?

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Yes! Click the "Notify Me of Price Drops" bell icon on any property card or the alert button on this page to receive instant alerts the moment a seller reduces their asking price.