3 programs, side by side

+ Add a program	Western Computer Science OUAC ECS ☆ Add to planRemove	Waterloo Environmental Engineering (Co-op Only) OUAC WEE ☆ Add to planRemove	TMU Undeclared Engineering (First Semester Studies Only) OUAC SEU ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	83–90%“Mid- to High 80s”	85–90%“85-90%”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4UMHF4U	ENG4UMCV4UMHF4USCH4USPH4U	ENG4UMCV4UMHF4USCH4USPH4U
Choose one ofany of these satisfies it	one of ICS4U, MDM4U, SBI4U, SES4U, SPH4U	—	—
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Advanced Functions, MHF4U One of: Biology, SBI4U +5 more on the program page	English (ENG4U – min. 70%) Advanced Functions (min. 70%) Calculus and Vectors (min. 70%) Chemistry (min. 70%) Physics (min. 70%)	English/Anglais (ENG4U/EAE4U preferred) Advanced Functions (MHF4U) Calculus and Vectors (MCV4U) Physics (SPH4U) Chemistry (SCH4U)
More than marks?supplementary application	Marks only	Yes NEW: All Engineering program applications require an online video interview. You will receive more information after you apply. An Admission Information Form is also required. We will send you instructions when we acknowledge your application. Also considered: Involvement in extracurricular activities in school or community, evidence of interest in engineering and strong performance in mathematics, science or engineering-related competitions. Usually closes before January 15	Marks only
Co-op	Available	Available	No
Degree	—	—	—
First-year intakewhere published	500	75	145
What you study	Computer GamesInformation ServicesSoftware Engineering	Biological SciencesChemical EngineeringCivil EngineeringEnvironmental Studies	Aerospace EngineeringChemical EngineeringCivil EngineeringElectronic & Electrical Engineering
What it is	Computer Science at Western teaches you how to write programs, build software systems, and solve problems using computers and code. You choose a focus — such as game development, managing information systems, or engineering robust software — based on your interests. The program includes paid work terms alongside your studies, letting you apply classroom learning in real jobs and build professional experience before you graduate.	You study how to design systems and structures that protect the environment and manage natural resources — combining biology, chemistry, civil engineering, and earth science. Unlike a general engineering program, this one focuses specifically on water treatment, waste management, air quality, and land remediation. It suits students who want to solve real environmental problems with engineering tools and are willing to do mandatory work terms alongside their studies.	In your first semester, you take core engineering courses in math, physics, and design while exploring different engineering specializations — aerospace, chemical, civil, electrical, mechanical, software, and manufacturing. You won't choose your specific engineering stream until after first semester, letting you test what each field actually involves before committing. This suits students who are confident they want engineering but unsure which branch matches their interests and strengths.
The door tomajors you reach through it	computer science	Applied to directly	Applied to directly
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	4 published, 3 with no applicationfrom 80%See them	2 published, 0 with no applicationfrom 85%See them
Source	Western University on OUInfo	University of Waterloo on OUInfo	Toronto Metropolitan University on OUInfo

Ranges are what each university publishes, not guaranteed cutoffs, and limited-enrolment programs often admit above them. Confirm anything you are about to act on with the university; each column links to its source.