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St. Catharines • Niagara Region

Homes with In-Law Suite for Sale in St. Catharines, Ontario

188 listings for sale matching your search

Explore homes featuring an in-law suite for sale in St. Catharines, Ontario. This page updates as new listings come on the market, so you can be confident you're seeing what's available right now.

St. Catharines is the largest city in Niagara — a full mix of downtown lofts, Port Dalhousie waterfront, and family neighbourhoods. If you'd like a deeper look — recent sale comparables, neighbourhood notes, or a private tour — the Davids & DeLaat team lives and works in Niagara every day and is happy to help.

Available homes in St. Catharines

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Welcome to 211 Grantham AveFor Sale
3 Beds2 Baths700 ft²

St. Catharines

$486,000

211 Grantham Avenue

39 Elma StreetFor Sale
4 Beds2 Baths700 ft²

St. Catharines

$549,000

39 Elma Street

WELCOME TO 15 CONCORDFor Sale
2 Beds1 Baths700 ft²

St. Catharines

$389,999

15 Concord Avenue

55 BURNESS DriveFor Sale
5 Beds2 Baths700 ft²

St. Catharines

$617,000

55 Burness Drive

10 Dundas CrescentFor Sale
6 Beds3 Baths1,100 ft²

St. Catharines

$999,000

10 Dundas Crescent

23 Northdale DriveFor Sale
3 Beds2 Baths1,100 ft²

St. Catharines

$649,900

23 Northdale Drive

23 Windward StreetFor Sale
3 Beds3 Baths1,100 ft²

St. Catharines

$519,900

23 Windward Street

1 GLADMAN AvenueFor Sale
3 Beds1 Baths700 ft²

St. Catharines

$465,000

1 Gladman Avenue

Main Floor kitchen with large island, wine fridge.For Sale
4 Beds2 Baths1,100 ft²

St. Catharines

$849,900

9 Amberwood Court

28 Tanera CrescentFor Sale
4 Beds3 Baths2,000 ft²

St. Catharines

$799,999

28 Tanera Crescent

422 Welland AvenueFor Sale
3 Beds1 Baths700 ft²

St. Catharines

$399,900

422 Welland Avenue

12 Andrea DriveFor Sale
4 Beds1 Baths1,100 ft²

St. Catharines

$669,999

12 Andrea Drive

1797sqft 3 bedroom 2 full bathroom bungalowFor Sale
3 Beds2 Baths1,500 ft²

St. Catharines

$839,900

14 Nicholas Drive

13 Third AvenueFor Sale
4 Beds3 Baths1,100 ft²

St. Catharines

$814,888

13 Third Avenue

13 Rene LaneFor Sale
4 Beds2 Baths1,100 ft²

St. Catharines

$699,900

13 Rene Lane

Welcome to 720 Lake StreetFor Sale
4 Beds5 Baths3,000 ft²

St. Catharines

$1,499,900

720 Lake Street

83 HILLVIEW RoadFor Sale
4 Beds3 Baths1,500 ft²

St. Catharines

$724,900

83 Hillview Road

233 PELHAM RoadFor Sale
2 Beds2 Baths700 ft²

St. Catharines

$480,000

233 Pelham Road

19 Damson StreetFor Sale
4 Beds3 Baths1,500 ft²

St. Catharines

$995,000

19 Damson Street

190 Oakdale AvenueFor Sale
5 Beds4 Baths2,000 ft²

St. Catharines

$850,000

190 Oakdale Avenue

Front facing WestFor Sale
4 Beds3 Baths1,500 ft²

St. Catharines

$949,900

22 John Street

3 Delaware AvenueFor Sale
3 Beds1 Baths700 ft²

St. Catharines

$435,000

3 Delaware Avenue

8 Fernwood TerraceFor Sale
4 Beds4 Baths1,100 ft²

St. Catharines

$889,900

8 Fernwood Terrace

4 Manning StreetFor Sale
2 Beds2 Baths700 ft²

St. Catharines

$399,900

4 Manning Street

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Frequently asked questions

How often is the list of Homes with In-Law Suite in St. Catharines updated?

Listings refresh automatically every hour from the live MLS feed. The newest homes for sale in St. Catharines appear at the top of this page.

What's the price range for homes in St. Catharines?

Pricing depends on neighbourhood, age and lot, but the Davids & DeLaat team tracks every Niagara home sale week-over-week and can give you a real-time read on the St. Catharines market.

How do I find homes with in-law suite in St. Catharines?

We pre-filter MLS listings for an in-law suite so you don't have to scroll through hundreds of irrelevant results. Save the page or get email alerts the moment a new one comes up.

Who are the best realtors for St. Catharines?

Davids & DeLaat is a top-producing Niagara real estate team that has helped hundreds of families buy and sell across St. Catharines and the wider Niagara Region. Get in touch to talk with a local agent.

Niagara real estate insights

Read the latest from the Davids & DeLaat blog to learn more about buying in St. Catharines and across Niagara.

Talk to the #1 real estate team in St. Catharines

Have a question about homes for sale in St. Catharines? The Davids & DeLaat team works in the local market every day—and has for over 30 years—earning our reputation as the best real estate team in St. Catharines.

Tell us what type of properties you're looking for, and you will instantly get a personalized shortlist of St. Catharines properties based on your preferences. Plus, we'll notify you immediately every time a new listing hits the market that matches your criteria. Our real estate search feed is updated every 15 minutes, so you will be the first to know about the newest properties as soon as they hit the St. Catharines MLS.

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