John W. Costello Catholic School

Welcome to John W. Costello Catholic School, a cornerstone of educational excellence rooted in faith and community. Our school provides a nurturing and inclusive environment where students from kindergarten to grade 9 thrive academically, spiritually, and socially.


 

 

300 Strathcona Drive SW Calgary, AB T3H 1N9
Phone:403-500-2003
Fax:403-500-2203
Email:johncostello@cssd.ab.ca

 

Academic Excellence

At John W. Costello Catholic School, we are dedicated to providing a rigorous and enriching academic program that fosters critical thinking, creativity, and a lifelong love of learning. Our experienced educators utilize innovative teaching methods and personalized instruction to meet the diverse needs of every student, ensuring they reach their full potential.

Faith Formation

Central to our mission is the integration of faith into every aspect of school life. Rooted in Catholic values, our curriculum and daily activities promote spiritual growth, moral development, and a deepening understanding of God's love. Through prayer, liturgical celebrations, and service projects, we nurture the spiritual well-being of our students and instill in them a sense of compassion, kindness, and empathy.


Homes For Sale Near John W. Costello Catholic School

Sort by:
New
937 42 Street Sw, Calgary

$1,099,900

937 42 Street Sw, Calgary

4 Beds 4 Baths 2,125 SqFt Residential MLS® # A2302119

RE/MAX First

New Open House
86, 100 Signature Way Sw, Calgary

$599,300

86, 100 Signature Way Sw, Calgary

3 Beds 3 Baths 1,652 SqFt Residential
Sat, Apr 18th, 2026 @ 2pm - 4pm
MLS® # A2301983

Real Estate Professionals Inc.

New
122 Aspen Ridge Place Sw, Calgary

$3,200,000

122 Aspen Ridge Place Sw, Calgary

5 Beds 6 Baths 3,968 SqFt Residential MLS® # A2301642

Sotheby's International Realty Canada

New Open House
213 Sirocco Place Sw, Calgary

$828,000

213 Sirocco Place Sw, Calgary

6 Beds 3 Baths 1,305 SqFt Residential
Sat, Apr 18th, 2026 @ 2pm - 4pm
MLS® # A2301058

Top Producer Realty and Property Management

New
86 Warwick Drive Sw, Calgary

$839,900

86 Warwick Drive Sw, Calgary

5 Beds 2 Baths 1,168 SqFt Residential MLS® # A2302230

Real Estate Professionals Inc.

New Open House
80 Westover Drive Sw, Calgary

$784,900

80 Westover Drive Sw, Calgary

4 Beds 2 Baths 1,122 SqFt Residential
Fri, Apr 17th, 2026 @ 4:30pm - 6:30pm
MLS® # A2288228

Real Estate Professionals Inc.

New
234 West Grove Point Sw, Calgary

$1,219,900

234 West Grove Point Sw, Calgary

5 Beds 4 Baths 2,335 SqFt Residential MLS® # A2299224

Skyrock

101 Westpoint Gardens , Calgary

$899,900

101 Westpoint Gardens , Calgary

6 Beds 5 Baths 1,947 SqFt Residential MLS® # A2299192

Royal LePage Blue Sky

44 Strathclair Rise Sw, Calgary

$625,000

44 Strathclair Rise Sw, Calgary

4 Beds 4 Baths 1,411 SqFt Residential MLS® # A2300232

2% Realty

Open House
38 Westwood Drive Sw, Calgary

$829,999

38 Westwood Drive Sw, Calgary

4 Beds 3 Baths 1,209 SqFt Residential
Sun, Apr 19th, 2026 @ 12pm - 2pm
MLS® # A2299811

Creekside Realty

Open House
12 Westwood Crescent Sw, Calgary

$675,000

12 Westwood Crescent Sw, Calgary

4 Beds 2 Baths 1,066 SqFt Residential
Sun, Apr 19th, 2026 @ 12pm - 2pm
MLS® # A2298134

CIR Realty

33 Warwick Drive Sw, Calgary

$819,000

↓ $20,900

33 Warwick Drive Sw, Calgary

6 Beds 3 Baths 1,274 SqFt Residential MLS® # A2297421

RE/MAX First

Open House
4712 Grove Hill Road Sw, Calgary

$1,249,000

4712 Grove Hill Road Sw, Calgary

4 Beds 4 Baths 1,909 SqFt Residential
Sat, Apr 18th, 2026 @ 1pm - 3pm
MLS® # A2293617

CIR Realty

6 Strathridge Way Sw, Calgary

$1,149,900

↓ $30,100

6 Strathridge Way Sw, Calgary

5 Beds 4 Baths 2,744 SqFt Residential MLS® # A2298508

Real Estate Professionals Inc.

Open House
26 Patina Hill Sw, Calgary

$3,350,000

26 Patina Hill Sw, Calgary

5 Beds 6 Baths 2,424 SqFt Residential
Sat, Apr 18th, 2026 @ 12pm - 2pm
MLS® # A2298630

eXp Realty

137 Simcrest Heights Sw, Calgary

$1,199,800

137 Simcrest Heights Sw, Calgary

5 Beds 4 Baths 2,488 SqFt Residential MLS® # A2298291

RE/MAX Realty Professionals

16 Straddock Crescent Sw, Calgary

$874,900

16 Straddock Crescent Sw, Calgary

6 Beds 4 Baths 1,982 SqFt Residential MLS® # A2297214

RE/MAX House of Real Estate

2 Aspen Summit Mount Sw, Calgary

$1,148,000

↓ $32,000

2 Aspen Summit Mount Sw, Calgary

3 Beds 4 Baths 2,163 SqFt Residential MLS® # A2298456

eXp Realty

Open House
140 Waterloo Drive Sw, Calgary

$775,000

140 Waterloo Drive Sw, Calgary

5 Beds 2 Baths 1,030 SqFt Residential
Sat, Apr 18th, 2026 @ 1pm - 3pm
MLS® # A2297794

Real Broker

120 Aspen Dale Way Sw, Calgary

$1,488,000

120 Aspen Dale Way Sw, Calgary

5 Beds 4 Baths 2,488 SqFt Residential MLS® # A2296387

Century 21 Bamber Realty LTD.

166 69 Street Sw, Calgary

$1,189,000

↓ $20,900

166 69 Street Sw, Calgary

6 Beds 4 Baths 2,147 SqFt Residential MLS® # A2296069

Top Producer Realty and Property Management

68 West Glen Crescent Sw, Calgary

$760,000

68 West Glen Crescent Sw, Calgary

3 Beds 2 Baths 1,053 SqFt Residential MLS® # A2297149

CIR Realty

105 Westpoint Way Sw, Calgary

$1,799,000

105 Westpoint Way Sw, Calgary

4 Beds 4 Baths 2,840 SqFt Residential MLS® # A2295884

eXp Realty

Open House
40 Christie Cairn Square Sw, Calgary

$1,335,000

↓ $34,900

40 Christie Cairn Square Sw, Calgary

5 Beds 5 Baths 2,823 SqFt Residential
Sat, Apr 18th, 2026 @ 11am - 2pm
MLS® # A2296171

First Place Realty

Open House
4823 Waverley Drive Sw, Calgary

$664,500

4823 Waverley Drive Sw, Calgary

3 Beds 2 Baths 932 SqFt Residential
Sat, Apr 18th, 2026 @ 12pm - 2pm
MLS® # A2296581

Royal LePage Benchmark

270 West Grove Lane Sw, Calgary

$1,069,000

270 West Grove Lane Sw, Calgary

3 Beds 3 Baths 2,240 SqFt Residential MLS® # A2294806

Royal LePage Benchmark

1415 43 Street Sw, Calgary

$898,000

↓ $50,000

1415 43 Street Sw, Calgary

5 Beds 2 Baths 1,099 SqFt Residential MLS® # A2294734

Coldwell Banker Mountain Central

100 Strathcona Close Sw, Calgary

$669,900

100 Strathcona Close Sw, Calgary

4 Beds 3 Baths 1,186 SqFt Residential MLS® # A2294740

RE/MAX Complete Realty

Open House
55 Coach Gate Way Sw, Calgary

$750,000

↓ $19,500

55 Coach Gate Way Sw, Calgary

4 Beds 4 Baths 1,582 SqFt Residential
Sun, Apr 19th, 2026 @ 2pm - 4pm
MLS® # A2280840

Century 21 Bamber Realty LTD.

29 Windermere Road Sw, Calgary

$745,000

29 Windermere Road Sw, Calgary

4 Beds 2 Baths 925 SqFt Residential MLS® # A2293709

Royal LePage Blue Sky

Safe and Supportive Environment

Creating a safe, welcoming, and supportive environment is a top priority at John W. Costello Catholic School. Our caring and dedicated staff members prioritize the well-being and emotional development of our students, ensuring they feel valued, respected, and supported as they grow and learn.

Extracurricular Opportunities

John W. Costello Catholic School offers a wide range of extracurricular activities to complement our academic program. From sports teams and clubs to music ensembles and leadership opportunities, students have the opportunity to explore their interests, develop their talents, and build friendships outside of the classroom.