Duplexs for Sale in St. Catharines, ON

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

home_work 7 listings
All St. Catharines Houses Condos Townhouses

analytics St. Catharines Duplex Market Snapshot

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

verified Live MLS® • Nov 2026 7 of 570 St. Catharines homes
Active Duplexs
7
In St. Catharines MLS®
Average Price
$555,257
Avg. duplex price
Lowest Price
$405,000
Most affordable
Highest Price
$679,000
Top luxury listing
Compare with other property types in St. Catharines: View all 570 St. Catharines listings →
Houses
Avg: $567,852
449
Townhouses
Avg: $532,108
66
Condos & Apartments
Avg: $344,300
27
Triplexes
Avg: $633,957
7
Duplexes check_circle
Avg: $555,257
7
Fourplexes
Avg: $601,780
5
Multi-Family
Avg: $911,200
4
Commercial Mixs
Avg: $452,450
2
Offices
Avg: $485,000
2
Retails
Avg: $149,900
1

As of November 2026, there are 7 active duplexs for sale in St. Catharines, ON (out of 570 total real estate listings in the city). Asking prices for duplexs span from $405,000 to $679,000, with an average price of $555,257.

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4 Bed Duplex for Sale at 98 Queenston St, St. Catharines, ON - MLS® #X5473346
$599,000
Approx. price as of Mar 2022
Duplex

98 Queenston St

location_on St. Catharines, ON · L6R2Z3
bed 4 bd bathtub 3 ba square_foot 40 x 154 FT
5 Bed Duplex for Sale at 33 Court Street, St. Catharines, ON - MLS® #40074809
$659,000
Approx. price as of Apr 2021
Duplex

33 Court Street

location_on St. Catharines, ON · L2R4R5
bed 5 bd bathtub 3 ba straighten 2247
Duplex for Sale at 50 George Street, St. Catharines, ON - MLS® #30615429
$405,000
Approx. price as of Dec 2017
Duplex, Detached-2 Level

50 George Street

location_on St. Catharines, ON · L2R5N6
straighten 2143 sqft
Duplex for Sale at 127 Ontario Street, St. Catharines, ON - MLS® #30612069
$679,000
Approx. price as of Dec 2017
Duplex

127 Ontario Street

location_on St. Catharines, ON · L2R5J9
straighten 4300 sqft
Duplex for Sale at 35 Fawell Avenue, St. Catharines, ON - MLS® #30595937
$444,900
Approx. price as of Aug 2017
Duplex

35 Fawell Avenue

location_on St. Catharines, ON · L2S2V5
square_foot under 1/2 acre
Duplex for Sale at 612 Geneva Street, St. Catharines, ON - MLS® #30567719
$449,900
Approx. price as of Jun 2017
Duplex

612 Geneva Street

location_on St. Catharines, ON · L2N2J5
square_foot under 1/2 acre
Duplex for Sale at 85 South Drive, St. Catharines, ON - MLS® #30567175
$650,000
Approx. price as of Jun 2017
Duplex

85 South Drive

location_on St. Catharines, ON · L2R4V5
square_foot under 1/2 acre

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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 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 Cambridge 291 active arrow_outward

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help_outline Frequently Asked Questions

Common questions about buying duplexs in St. Catharines.

What is the average price for Duplexs in St. Catharines? expand_more

Property prices for Duplexs in St. Catharines 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 St. Catharines? expand_more

There are currently 7 active Duplex listings available in St. Catharines, 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.