Every semester, Korea University's Department of Architecture has seen a drastic increase in exchange students wanting to spend time in Korea. The 5-year B. Arch program is accredited by Korea Architecture Accreditation Board(KAAB) which is a standard shared by most OECD countries in architecture education. This will make transferring credits to your home university easier. And you will find many courses offered in English.
Here is Elisabeth Frizzell from USA talking about her experience at Korea University as an exchange student.