What's the difference between hiring for a Part 1, Part 2, and Part 3 architect role?
WhatPart 1, Part 2, and Part 3 mean in UK architectural qualification, and how hiring considerations differ at each stage.
Part 1, Part 2, and Part 3refer to stages of the RIBA/ARB architectural qualification pathway in the UK, not job titles. Part 1 is typically an assistant role taken after the first degree, Part 2 a more senior assistant role after the master's, and Part 3 a qualified architect who has passed the final professional exam and isregistered to use the title "Architect." Hiring considerations differ significantly at each stage.
Part 1
A Part 1 candidate has completed the first stage of architectural education, typically a three-year degree, and usually takes an assistant role — often during a placement year —to gain practical experience before returning to study. Expect strong design and software fundamentals, limited independent project responsibility, and significant supervision need. Job specs at this level should focus on learning and development structure, not independent delivery expectations.
Part 2
A Part 2 candidate has completed a further master's-level qualification and usually has more practical experience than a Part 1, often including a further placement year. They can take on more independent design and technical responsibility but are not yet legally qualified as an architect and cannot use the title independently or take final sign-off responsibility. A common hiring mistake is treating a strong Part 2 candidate as equivalent to a qualified architect — the technical capability may be close, but the legal responsibility and sign-off authority are not.
Part 3
Part 3 is the final professional qualification, combining further study with a minimum period of practical experience, assessed through case study and exam. A Part 3 qualified architect is registered with the ARB, can legally use the title "Architect,"and can take on sign-off responsibility and professional liability that Part 1and Part 2 staff cannot. Hiring at this level should reflect the increased liability and independent responsibility the role carries.
Common hiring mistakes
Writing a job spec that doesn't distinguish clearly between these stages produces applications from candidates who don't match the actual responsibility level required. Underestimating strong Part 1 candidates — some carry genuine independent capability well ahead of their formal stage — is equally common, and can mean overlooking good talent by hiring purely on qualification stage rather than demonstrated ability.
FAQ
Can a Part 1 or Part 2 architect legally call themselves an"architect"?
No. The title"Architect" is legally protected in the UK and can only be used by those registered with the Architects Registration Board, which requires completion of Part 3.
How long does it typically take to progress from Part 1 toPart 3?
The full pathway typically takes around seven years in total, including the Part 1 and Part 2 academic stages and required periods of practical experience, though this varies by individual and route.
Do Part 1 and Part 2 assistants need ARB registration?
No. ARB registration and the protected title "Architect" apply only after completing Part 3. Part1 and Part 2 staff work under supervision within a practice without independent sign-off authority.
Written by George Dobbins, Founder of Arcavia Consulting — talent intelligence for the built environment.
Last updated: 14 July 2026