Studying Architecture in Ontario
You can’t always apply to architecture directly. Some universities admit you straight into it; others admit you into a broad first-year category and you choose architecture later. That difference is why searching for a major by name can make it look like a university doesn’t offer it.
Apply broad, choose architecture later
Apply to not offered at Western University
Western does not have an undergraduate architecture degree of any kind - no Bachelor of Architectural Studies, no Bachelor of Architecture, and no direct-entry Master of Architecture from high school. Students often confuse this with the University of Waterloo, which does offer a pre-professional Architecture degree (leading to a Bachelor of Architectural Studies) with its own direct OUAC application and portfolio requirement - but that is a completely different school, not Western. None of Western's Grade 12 entry points (Engineering, Science, Arts and Humanities, Fine Arts - Studio, etc.) lead into an architecture major at Western, since the program simply doesn't exist there. A student set on architecture in Ontario should look at Waterloo, Carleton, Toronto, Ryerson/TMU, or Laurentian instead.
Apply to not offered at Queen's University (Kingston) as an undergraduate degree
Queen's Kingston has no Bachelor of Architecture or undergraduate Architecture major, so none of the Grade 12 OUAC codes lead there. The only architecture-related program is the professional Master of Architecture, run through the Queen's School of Urban and Regional Planning, which is a graduate program under the School of Graduate Studies and Research - it requires a completed bachelor's degree first, not a Grade 12 application. A student who wants to become an architect could apply to a Queen's undergraduate program (e.g. Arts, mid-80s, QA) for a related bachelor's degree and later apply to a Master of Architecture program at Queen's or elsewhere (e.g. Waterloo, Toronto, Carleton, McGill all have dedicated undergrad architecture routes that Queen's does not). Do not confuse this with Queen's University Belfast (UK), which does have an undergrad BSc Architecture - that is a completely different institution despite the similar name.
https://www.queensu.ca/admission/Apply to not offered at McMaster University
McMaster does not have an undergraduate architecture degree at all — it only offers 25 undergraduate programs and architecture is not one of them. There is no faculty, gateway, or "Discovery"/Arts & Science stream at McMaster that leads into an architecture major later. Students who want architecture from McMaster typically start in something unrelated (e.g. Civil Engineering) and then transfer to a school that actually has an architecture program (like Waterloo, Carleton, Toronto, or Dalhousie), or they apply directly to those other universities from Grade 12 instead. If this student wants architecture, they should apply to a different university's OUAC code, not any McMaster code on this list.
https://continuing.mcmaster.ca/programs/tech-data/big-data-programming-and-architecture/University of Toronto — Mississauga
Apply to not offered at UTM
Architecture (the Honours Bachelor of Arts in Architectural Studies) is a U of T program, but it is run by the John H. Daniels Faculty of Architecture, Landscape, and Design and is only offered at the St. George campus, not at UTM. U of T's own program page lists Architectural Studies as "St. George" only. UTM's Department of Visual Studies teaches the history of art and architecture (e.g., through its Art History major/minor) as part of Visual Studies (tev), but this is art history, not a professional or design-focused architecture major, and it does not lead to the Daniels Faculty program. A student who wants architecture specifically needs to apply to the St. George campus's Architectural Studies program (which also requires a supplementary portfolio application), not to any UTM entry point. There is no route from the UTM programme list above that leads into real "architecture."
https://www.sgs.utoronto.ca/programs/architecture/University of Toronto — Scarborough
Apply to not offered at UTSC
Architecture (the Architectural Studies BA, and the professional MArch) is only offered through the Daniels Faculty of Architecture, Landscape & Design at the St. George campus — none of the programmes UTSC admits into from Grade 12 lead to it. The "Architecture" pages that show up on utsc.utoronto.ca are actually the campus facilities/planning department, not an academic program, which is an easy mix-up when searching. A student who wants architecture needs to apply to University of Toronto St. George (Woodsworth/Innis/University College etc., Faculty of Arts & Science) for Architectural Studies, not to any Scarborough OUAC code.
http://www.arts.utoronto.ca/architecture.htmWilfrid Laurier University — Waterloo
Apply to not offered at Laurier
Laurier has no architecture programme of any kind — nothing by that name appears in its full programme listing, at any campus.
https://www.wlu.ca/programs/index.htmlApply to not offered at York
York has no architecture programme. Design (BDes, YD, mid-80s) is the closest creative-design degree, and Cities, Regions, Planning (YHV) covers urban planning — neither is architecture.
https://futurestudents.yorku.ca/program-searchApply to not offered at Brock
Brock has no architecture programme — nothing by that name appears among its 86 codes. Visual Arts (BR) and Interactive Arts and Digital Media (BIS) are the creative-design options.
https://brocku.ca/programs/undergraduate/Apply to Visual Arts and the Built Environment (VABE) (NFB)
You choose architecture on the application — Windsor's architecture-adjacent degree is VABE, not a BArch.
Windsor has no architecture degree. Visual Arts and the Built Environment (NFB, 75% minimum) is a joint programme with St. Clair College covering architectural technology and design; it is not an accredited architecture degree and does not lead to licensure on its own.
https://www.future.uwindsor.ca/programs/Apply to not offered at Ontario Tech
Ontario Tech has no architecture programme — nothing by that name among its 154 codes. Manufacturing Engineering (DEM) and Creativity, Digital Arts and Entertainment Industries (DAH) are the nearest design-adjacent degrees.
https://ontariotechu.ca/programs/undergraduate/index.phpApply to not offered at Trent
Trent has no architecture programme — nothing by that name among its 164 codes.
https://www.trentu.ca/futurestudents/programsApply to not offered at Lakehead
Lakehead has no architecture programme — nothing by that name among its 43 codes.
https://www.lakeheadu.ca/programs/undergraduate-programsApply to not offered at Nipissing
Nipissing has no architecture programme. Community Planning (PCP, 70% minimum, limited enrolment) is the nearest built-environment degree.
https://future.nipissingu.ca/programs/Apply to not offered at Algoma
Algoma has no architecture programme — it is not among the 21 programmes on Algoma's own list.
https://algomau.ca/academics/programs/
Apply straight to architecture
This is the direct-entry OUAC code for undergraduate architecture at U of T St. George, run by the John H. Daniels Faculty of Architecture, Landscape, and Design. It's a Bachelor of Arts, not a professional architecture degree — you get a real, licensable architecture credential only later at the Master of Architecture level (second-entry, after this or another undergrad degree). Also note: everyone admitted into TLA starts in the same 'Comprehensive' stream in first year automatically, and only after finishing 8.0 credits in second year can you choose one of the more specialized streams (Design, History & Theory, or Technology of Architecture, Landscape, and Urbanism). Don't confuse this with Visual Studies (TLB), which is a separate, related program in the same faculty but is NOT the architecture-focused one — in fact the calendar explicitly says the Architectural Studies program's own 'Major' option is closed to Architectural Studies students and only open to Visual Studies students, which trips a lot of applicants up.
Architecture (Co-op Only) (WR)
You apply straight to WR on OUAC, but admission is a two-stage process: Waterloo's own site confirms Stage 1 is the OUAC application by the deadline (no AIF needed for Architecture, unlike most other Waterloo programs), then in early March students with competitive averages are invited to Stage 2, where they upload a portfolio, complete a short 'About You' survey, and do an interview in April at the Cambridge campus (not the main Waterloo campus). Required Grade 12 courses include MHF4U, MCV4U, SPH4U at 70%+ and ENG4U at 75%+, plus recommended art/design courses - don't skip the art courses thinking they're optional extras, since the portfolio is described as an essential, heavily-weighted part of admission.
Bachelor of Landscape Architecture (BLA) Honours (GL)
Guelph has no general architecture degree. Landscape Architecture is the only architecture programme, and it is a full professional degree rather than a major inside another one. If you want building architecture you need a different university.
Architectural Studies - Design (CR)
Carleton is one of the few Ontario universities with undergraduate architecture open from Grade 12. Architectural Studies has three direct-entry streams, each its own code: Design (CR, 75-77%), Conservation and Sustainability (CRC, 78%), and Urbanism (CRU, 75-77%). A portfolio is mandatory — Carleton's wording is that applicants "must submit a portfolio as part of the admissions process" — and one portfolio covers all three streams even if you apply to more than one. Admission is competitive beyond the published range.
TMU is one of the few Ontario universities with architecture open straight from Grade 12. Architectural Science is direct entry at 90%+ — the joint-highest published range at TMU — with co-op available. Interior Design (SIR, 75-80%) is a separate degree.
Laurentian's McEwen School is one of only a handful of true architecture routes from Ontario Grade 12, and in Laurentian's words 'Canada's 12th and newest fully accredited School of Architecture'. Architectural Studies is direct entry at 75% with a mandatory portfolio — 'you will not be considered for admission unless you submit one' — of at least 10 pieces, plus a 500-1000 word statement of interest. The four-year BAS leads to the two-year accredited M.Arch and eligibility for OAA licensure.
Read off each university’s own admissions pages, and covering the seven campuses Ontario students apply to most. Entry structures change — confirm with the university before you build a timetable around one. Search all programs.