You will be required to have:

a good degree in architecture
preferably completed RIBA Part 1 or have exemption from it (We will also consider your application if you haven't completed Part 1 but you've undertaken a non-UK or non-validated architecture degree. However, before qualifying as an architect in the UK, you must have obtained RIBA Part 1, as well as Parts 2 and 3. If you haven't completed Part 1 you should contact the ARB directly regarding eligibility for your Prescribed Part 1 exam.)
the ability to demonstrate your talent as a designer and motivation to complete the course successfully
Selected candidates are asked to attend an interview with their portfolio, which should include a wide range of work. To find out what to include in your portfolio, view our portfolio guidance.

Academic IELTS
Overall score required: 6.0
Component scores required:
Listening: 5.5
Reading: 5.5
Writing: 5.5
Speaking: 5.5

Test of English as a Foreign Language Internet Based Test (TOEFL iBT)
Overall score required: 72
Component scores required:
Listening: 17
Reading: 18
Writing: 17
Speaking: 20