ARB says an interior architecture degree is 'unlikely' to qualify you for its exam — here is the test it actually applies, and what does work

ARB’s guidance page contains one sentence that ends thousands of plans and explains none of them:

“If you hold qualifications that are not principally in architecture, for example, you have a degree in Interior Architecture, Interior Design or Architectural Technology, it is unlikely you will be eligible to sit the examination unless you fall under the current transitional arrangements set out here.”

Two things about that sentence are worth an hour of your time. First, “unlikely” is doing real work — there is a documented test, and a documented way to satisfy it. Second, the escape clause it points to is, for practical purposes, closed. We opened the linked document.

The transitional arrangements do not apply to you

The linked PDF is ARB’s “Extended Transitional Arrangements for Prescribed Examination”. It records that the Board changed its eligibility methodology in July 2012 and, at its meeting of 11 February 2015, agreed to extend the transitional cover to candidates who can show that they reasonably expected to be eligible on the grounds that:

“They commenced a course of study before October 2013 and graduates from the same cohort (or earlier cohorts from the same programme) (‘relevant graduates’) had made an application for Prescribed Examination which was accepted by the Board.”

Both conditions have to hold. You must have started the course before October 2013, and you must be able to point to identifiable graduates from your own programme whose applications ARB actually accepted. The document says applicants “may be required to identify relevant graduates upon whose eligibility they rely” and that “It may not be possible to apply these transitional arrangements if no relevant graduate is identified by the Applicant.”

If you began an interior architecture degree in 2015, or 2020, or this year, this clause is not for you. ARB’s sentence reads as though there is a live exception. There is a thirteen-year-old one.

The test ARB actually applies

The real gate is in section 2.2 of ARB’s Prescribed Examination Procedures, not on the web page.

At Part 1, candidates are eligible “if they have gained a non-prescribed qualification in architecture at first degree level after completing a course of at least three years’ full time duration or part time equivalent.”

Then comes the provision that matters for mixed or adjacent degrees:

“Candidates with qualifications at first degree level with an architecture component which has been studied alongside other subjects, may also be eligible for examination. In such circumstances, the candidate must submit a completed form from the awarding institution evidencing that the candidate has been examined against requirements comparable to the Board’s criteria for Part 1 in terms of the subjects covered and the levels of achievement required, and that the course of study leading to the qualification awarded was concerned principally with architecture.”

There is a second, alternative proof, open only to qualifications awarded outside the UK:

“Candidates may also evidence this by providing a statement from the registration or professional body in the country of award (for those outside the UK only) confirming that the qualification awarded supports access to the profession of architect in that country.”

So the question is never “is it called architecture?”. It is whether the awarding institution will certify that the course was concerned principally with architecture and examined at a comparable level — or, for an overseas award, whether the professional body at home will certify that the qualification supports access to the profession of architect there.

That is a testable question you can put to your university’s registry today, before spending anything. ARB says it provides templates for exactly this purpose and warns that if you do not comply with the requirement “your fee will be refunded minus a 25% scrutiny fee.”

For most UK interior architecture and interior design degrees, the honest expectation is that the institution will not sign that statement, because the course was not principally architecture. That is a fact about the course, not a judgement about you, and it is better learned from a registry email than from a returned application.

What ARB will not accept as a substitute

Experience. ARB states it directly:

“ARB is not an academic institution but is a registration body which bases registration on qualifications obtained from academic institutions. It therefore cannot use work experience in lieu of any academic study not obtained.”

Years of interiors practice, a strong portfolio and an employer’s reference can all form part of the evidence in an examination you are eligible to sit. None of them makes you eligible to sit it.

What does work: an accredited qualification

The route that is open, and that the discussion usually skips, is to obtain an ARB-accredited qualification rather than to argue equivalence with one.

ARB’s framework for UK qualifications requires “an accredited master’s level qualification that encompasses the Academic Outcomes” together with “an accredited practice level qualification that encompasses the Practice Outcomes”, or a single combined accredited qualification covering both.

The reason this now matters more than it did is a change ARB has published on its Changes to Routes to Registration page. In its own words:

“From spring 2027, applicants with ARB-accredited Part 2 and Part 3 qualifications (for example, ARB accredited qualifications or people who have passed the Part 2 Prescribed Exam) will be able to apply for registration without holding a recognised Part 1 qualification.”

Read against an interior architecture degree, that is the whole picture: the thing that used to block this group — no accredited Part 1, and an exam route that was “unlikely” to be open — is the thing ARB says it is removing. ARB describes this as a change it is introducing and gives spring 2027 as its expected date. It is not in force today, and we are not going to tell you what the final rules will say; ARB has said it will “publish guidance ahead of implementation covering eligibility, the evidence requirements and how to apply.”

There is also a live inconsistency worth knowing about if you are considering the Part 2 exam. ARB’s Procedures PDF requires a Part 1 pass or a prescribed Part 1 qualification before Part 2. ARB’s website says for 2026 that “you will not need to have an ARB-accredited Part 1 qualification or have passed the Part 1 Prescribed Exam to be eligible for the Part 2 Prescribed Exam.” Those do not agree. Get ARB’s position in writing before relying on either.

The decision that is not ARB’s

Whether an accredited master’s-level architecture programme will admit an interior architecture, interior design or architectural technology graduate is decided by the school, under its own admissions rules, on your portfolio and your academic record. ARB accredits the qualification; it does not admit you to it, and it has no view on your application.

That means the productive question is not “does ARB accept my degree” but “which accredited programmes accept applicants with my degree, and what do they want to see”. Those are two different enquiries, sent to two different sets of people.

What to do next, in order

1. Email your awarding institution’s registry and ask whether it is willing to certify, on ARB’s template, that your course was concerned principally with architecture and examined at a level comparable to ARB’s Part 1 criteria. A no here saves you £1,950 and a 25% scrutiny fee.
2. If your degree was awarded outside the UK, ask the architects’ registration or professional body in that country whether it will state that the qualification supports access to the profession of architect there. That is a separate, sufficient proof under ARB’s Procedures.
3. If neither is available, stop treating the Prescribed Examination as the route and start on accredited qualifications. Check the current list of ARB-accredited qualifications and providers on ARB’s own site before you shortlist anything.
4. Contact schools directly about entry with your degree. Their admissions criteria, not ARB’s, decide that.
5. Watch the spring 2027 change. ARB has published that it intends to allow registration on an accredited Part 2 and Part 3 without a Part 1. Follow ARB’s own guidance for the detail when it is published rather than any summary of it, including this one.

We do not assess qualifications, do not decide eligibility, and cannot tell you whether ARB or any school will accept yours. What this page does is show you the actual test, show you that the exception ARB points to closed to new entrants in 2013, and name the route that is open.