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N4X Houses For Sale Under 800K

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With Square Yards Canada, you can find a variety of houses for sale under $800k in n4x, providing an extensive selection across different municipalities, communities, or areas in Ontario. Filter properties by price, size, amenities, and property age to find the best n4x houses for sale under $800k. Customise your search by the number of bedrooms, bathrooms, and surface area to find the perfect match. Browse our listings with HD images and detailed guides to choose from the high-end properties available. Buy houses in n4x under $800k with the best on offer across the market.

Last Updated: November 04, 2026

50 Photos

318 Elizabeth Street, Perth, ON , MLS #X13706430 , Image - 1

318 Elizabeth Street St. Marys, Perth, ON MLS® X13706430

Residential Freehold (Detached)

$789000.0

Price drop by 4.4%

3 Beds
2 Baths
1500-2000 sq-ft

Fall is the best time to walk downtown St. Marys, and from 318 Elizabeth Street you're there in minutes. Grab a coffee, take the long way home past th

18 Photos

1 25 Thames Road, Perth, ON , MLS #X13564270 , Image - 1

1 25 Thames Road St. Marys, Perth, ON MLS® X13564270

Residential Freehold (Modular Home)

$344995.0

Price drop by 8.0%

2 Beds
2 Baths
700-1100 sq-ft

Welcome to 1-25 Thames Road, St. Mary's - A Beautiful Bungalow in Maple Lane Park! Situated on a spacious corner lot with picturesque country views an

Open House : Sat Nov 07, 10:30 AM to 12:00 PM

43 Photos

102 Waterloo Street S, Perth, ON , MLS #X14134236 , Image - 1

102 Waterloo Street S St. Marys, Perth, ON MLS® X14134236

Residential Freehold (Detached)

$719900.0

4 Beds
2 Baths
1100-1500 sq-ft

Welcome to this beautifully maintained classic mid-century two-storey home, ideally situated in a sought-after residential neighbourhood. Set on a mat

32 Photos

43 Thomas Street, Perth, ON , MLS #X14110340 , Image - 1

43 Thomas Street St. Marys, Perth, ON MLS® X14110340

Residential Freehold (Detached)

$775000.0

3 Beds
3 Baths
2000-2500 sq-ft

Welcome to your cottage on the river! Imagine enjoying your morning coffee on your exclusive terrace, overlooking the North Thames River, the Opera Ho

Pre-Construction

1515 Pickering Parkway

1497-1525 Pickering Parkway, Pickering

From $399,990 - $706,990

Project Info

1 Building
571 Units
Condos

Property Mix

Studio(36)
1 Bed(451)
2 Bed(80)
3 Bed(2)

Developer:Sevoy Developments

44 Photos

35 Thomas Street, Perth, ON , MLS #X13670650 , Image - 1

35 Thomas Street St. Marys, Perth, ON MLS® X13670650

Residential Freehold (Detached)

$750000.0

Price drop by 11.8%

2 Beds
2 Baths
1100-1500 sq-ft

Welcome to 35 Thomas St, St. Marys! Nestled along the Thames River, this unique home showcases the incredible location and offers the perfect blend of

47 Photos

30 Ann Street, Perth, ON , MLS #X14117446 , Image - 1

Unit-28, 30 Ann Street St. Marys, Perth, ON MLS® X14117446

Residential Freehold (Modular Home)

$429000.0

2 Beds
2 Baths
1100-1500 sq-ft

This is a gem of a home located in Thames Valley, an extraordinary Adult Lifestyle Community in the beautiful town of St. Mary's. The home backs onto

Open House : Sat Nov 07, 12:00 PM to 02:00 PM

50 Photos

19 Trailside Drive, Perth, ON , MLS #X14138648 , Image - 1

19 Trailside Drive St. Marys, Perth, ON MLS® X14138648

Residential Freehold (Att/Row/Townhouse)

$549900.0

3 Beds
2 Baths
1100-1500 sq-ft

A standout kitchen, the added appeal of an end unit, and freehold ownership. This Bickell Built townhome deserves a closer look. Just four years new,

50 Photos

202 Queen Street W, Perth, ON , MLS #X13772628 , Image - 1

202 Queen Street W St. Marys, Perth, ON MLS® X13772628

Residential Freehold (Detached)

$649000.0

4 Beds
4 Baths
1500-2000 sq-ft

Late fall on Queen Street West suits this home well. You get over 1,800 sq ft of finished space, including a finished basement, all a short walk from

Pre-Construction

Arbor West

10024 Mississauga Road, Brampton

From $559,990

Project Info

88 Buildings
204 Units
Townhouses

Property Mix

Floorplans coming soon

Developer:Caivan

50 Photos

321 Tracy Street, Perth, ON , MLS #X13757042 , Image - 1

321 Tracy Street St. Marys, Perth, ON MLS® X13757042

Residential Freehold (Att/Row/Townhouse)

$600000.0

2 Beds
2 Baths
1100-1500 sq-ft

Downsizing this fall? This one makes it easy.This freehold bungalow townhome sits on a quiet cul-de-sac in St. Marys. You get low-maintenance, one-lev

43 Photos

57 Parkhaven Crescent, Perth, ON , MLS #X14029080 , Image - 1

57 Parkhaven Crescent St. Marys, Perth, ON MLS® X14029080

Residential Freehold (Detached)

$775000.0

3 Beds
3 Baths
1100-1500 sq-ft

Tucked on a quiet crescent in St. Marys, this brick bungalow backs onto the open green space of Southvale Park, so you get fall colour right over the

50 Photos

353 Queen Street E, Perth, ON , MLS #X13766174 , Image - 1

353 Queen Street E St. Marys, Perth, ON MLS® X13766174

Residential Freehold (Detached)

$499000.0

3 Beds
3 Baths
1100-1500 sq-ft

The leaves are coming down and this 3-bed, 2.5-bath home is ready for the cozy months. You get over 1,100 sq ft above grade plus a partially finished

50 Photos

395 QUEEN Street E, Perth, ON , MLS #X13235368 , Image - 1

395 QUEEN Street E St. Marys, Perth, ON MLS® X13235368

Residential Freehold (Detached)

$639000.0

Price drop by 2.4%

3 +1 Beds
1 Baths
2500-3000 sq-ft

Located on a tree-lined street in the historic town of St. Marys is an attractive solid red-brick home just waiting for the right people to come along

Pre-Construction

Corktown Plaza

221 John Street South, Hamilton

From $329,900

Project Info

2 Buildings
786 Units
Townhouses

Property Mix

Floorplans coming soon

Developer:Slate Asset Management

31 Photos

22 St. Andrew Street N, Perth, ON , MLS #X13768458 , Image - 1

Unit-108, 22 St. Andrew Street N St. Marys, Perth, ON MLS® X13768458

Residential Condo & Other (Leasehold Condo)

$284900.0

2 Beds
2 Baths
1000-1199 sq-ft

Welcome to Unit 108 at Rotary Parkview West, where life feels a little easier. This lovely Life Lease unit offers approximately 1,200 sq. ft. with two

48 Photos

224 Elizabeth Street, Perth, ON , MLS #X14092594 , Image - 1

224 Elizabeth Street St. Marys, Perth, ON MLS® X14092594

Residential Freehold (Detached)

$750000.0

2 Beds
3 Baths
1500-2000 sq-ft

Built in 1895, this well-maintained yellow brick Ontario cottage offers approximately 1,700 sq. ft. Character-filled living space in the heart of St.

30 Photos

4740 16 Line, Perth, ON , MLS #X12420151 , Image - 1

4740 16 Line Downie, Perth South, Perth, ON MLS® X12420151

Residential Freehold (Detached)

$799900.0

Price drop by 11.1%

6 Beds
3 Baths
2500-3000 sq-ft

Beautiful 3.45-Acre Estate Along the Avon River A Rare Opportunity Rich in Heritage and Potential. Presenting this distinguished property set on scen

44 Photos

30 Ann Street, Perth, ON , MLS #X13536404 , Image - 1

Unit-31, 30 Ann Street St. Marys, Perth, ON MLS® X13536404

Residential Freehold (Detached)

$440000.0

Price drop by 6.0%

2 Beds
2 Baths
1100-1500 sq-ft

Fall is a good time to settle somewhere easy. 31-30 Ann St. sits on a quiet cul-de-sac in Thames Valley, St. Marys' 55+ adult lifestyle community, and

Pre-Construction

Lily at Crosstown

844 Don Mills Road, North York, Toronto

From $573,990 - $1,358,990

Project Info

2 Buildings
220 Units
Condos

Property Mix

Studio(2)
1 Bed(95)
2 Bed(79)
3 Bed(44)

Developer:Aspen Ridge Homes

48 Photos

220 Elgin Street E, Perth, ON , MLS #X13775934 , Image - 1

220 Elgin Street E St. Marys, Perth, ON MLS® X13775934

Residential Freehold (Detached)

$600000.0

Price drop by 4.8%

4 Beds
3 Baths
2000-2500 sq-ft

Built in 1879 and attributed to Silas Weekes, the architect behind the St. Marys Opera House, 220 Elgin St E is a Georgian-style home with the kind of

50 Photos

18 Robinson Street, Perth, ON , MLS #X14101840 , Image - 1

18 Robinson Street St. Marys, Perth, ON MLS® X14101840

Residential Freehold (Detached)

$725000.0

4 Beds
2 Baths
2000-2500 sq-ft

Remarkable on Robinson! Stunning century home with all of the modern conveniences, located just steps to the 'Little Falls', The Loop trails and beaut

49 Photos

23547 Wellburn Road, Middlesex, ON , MLS #X13606054 , Image - 1

23547 Wellburn Road Wellburn, Thames Centre, Middlesex, ON MLS® X13606054

Residential Freehold (Detached)

$725000.0

Price drop by 2.7%

4 +0 Beds
2 Baths
2000-2500 sq-ft

Step inside this beautifully renovated rural home on the edge of Wellburn, Ontario and discover what awaits you. Originally built in 1880, with a larg

32 Photos

25 Thames Road, Perth, ON , MLS #X14118426 , Image - 1

Unit-14, 25 Thames Road St. Marys, Perth, ON MLS® X14118426

Residential Freehold (Modular Home)

$415000.0

2 Beds
2 Baths
1100-1500 sq-ft

Welcome to Unit 14 at 25 Thames Road in St. Marys, nestled in the desirable Maple Lane Park adult lifestyle community! This beautifully maintained 200

Pre-Construction

The Clove Condos

2 East Mall Cres, Toronto

From $440,990

Project Info

1 Building
606 Units
Condos

Property Mix

Studio(32)
1 Bed(379)
2 Bed(127)
3 Bed(68)

Developer:Mattamy Homes, QuadReal Property Group

19 Photos

428 Queen Street W, Perth, ON , MLS #X13854268 , Image - 1

Unit-33, 428 Queen Street W St. Marys, Perth, ON MLS® X13854268

Residential Condo & Other (Condo Townhouse)

$329900.0

1 Beds
1 Baths
700-799 sq-ft

Pol Quality Homes is thrilled to announce the launch of a new condominium project in St. Marys, ON. This development features beautifully designed one

19 Photos

428 Queen Street W, Perth, ON , MLS #X13854272 , Image - 1

Unit-26, 428 Queen Street W St. Marys, Perth, ON MLS® X13854272

Residential Condo & Other (Condo Townhouse)

$309900.0

2 Beds
1 Baths
800-899 sq-ft

Pol Quality Homes is thrilled to announce the launch of a new condominium project in St. Marys, ON. This development features beautifully designed one

19 Photos

428 Queen Street W, Perth, ON , MLS #X13854266 , Image - 1

Unit-31, 428 Queen Street W St. Marys, Perth, ON MLS® X13854266

Residential Condo & Other (Condo Townhouse)

$359900.0

1 Beds
1 Baths
800-899 sq-ft

Pol Quality Homes is thrilled to announce the launch of a new condominium project in St. Marys, ON. This development features beautifully designed one

7 Photos

428 Queen Street W, Perth, ON , MLS #X13153810 , Image - 1

Unit-3, 428 Queen Street W St. Marys, Perth, ON MLS® X13153810

Residential Condo & Other (Condo Townhouse)

$329900.0

1 Beds
1 Baths
700-799 sq-ft

Welcome to effortless condominium living in this brand new, never-before-lived-in unit offering the perfect blend of modern finishes, energy efficienc

Pre-Construction

The Laurels

6100 Regional Road 25, Milton

From $506,990 - $795,990

Project Info

7 Buildings
1768 Units
Condos

Property Mix

1 Bed(1425)
2 Bed(343)

Developer:Mattamy Homes

50 Photos

104 Ontario Street S, Perth, ON , MLS #X13638318 , Image - 1

104 Ontario Street S St. Marys, Perth, ON MLS® X13638318

Residential Freehold (Detached)

$639900.0

3 Beds
2 Baths
1100-1500 sq-ft

Welcome to the perfect blend of character and modern comfort. This beautifully updated 3-bedroom, 2-bathroom home is completely move-in ready in the W

42 Photos

144 Southvale Road, Perth, ON , MLS #X13703180 , Image - 1

Unit-3, 144 Southvale Road St. Marys, Perth, ON MLS® X13703180

Residential Condo & Other (Condo Townhouse)

$475000.0

Price drop by 11.2%

2 +1 Beds
2 Baths
1600-1799 sq-ft

New Listing : Unit 3-144 Southvale Road : This well located Condo Unit in the Wyndham Row Complex in a sought after location backing onto green spac

36 Photos

4920 Line 10 N/A, Perth, ON , MLS #X14119302 , Image - 1

4920 Line 10 N/A Blanshard, Perth South, Perth, ON MLS® X14119302

Residential Freehold (Detached)

$775000.0

2 +2 Beds
2 Baths
1100-1500 sq-ft

The views never get old. The sunsets never disappoint. Welcome to 4920 Line 10, where 0.70 acres of peaceful countryside, mature trees, and sweeping v