Qualifications & ARB
SLIA vs ARB: Navigating Professional Registration Categories in Sri Lanka
Thilini Mendis
Built Environment Consultant
6 min read•August 2026
Understand the distinct statutory roles of the Architects Registration Board (ARB) vs the SLIA, and the precise legal distinctions between Chartered Architects, Registered Architects, and Architectural Licentiates.
Key Insights for Sri Lankan Students & Clients
- Always check an architect's ARB registration number before commissioning building plans.
- Architectural Licentiates have legal authority for residential plans under local authority limits.
- Draftspersons without ARB registration cannot legally approve architectural drawings.
The Difference Between SLIA and ARB
Many clients and students confuse the Sri Lanka Institute of Architects (SLIA) with the Architects Registration Board (ARB).
SLIA (The Professional Body):Founded in 1957, SLIA is the professional institute responsible for architectural education, continuing professional development (CPD), design excellence awards, and representing architects.
ARB (The Statutory Regulatory Authority):Established by Parliament under Act No. 35 of 1996, the ARB is the government regulator that maintains the official Register of Architects, issues annual practice licenses, enforces ethical conduct, and prosecutes illegal practice.
Official Registration Categories
| Category | Typical Qualifications | Statutory Signing Authority |
|---|---|---|
| Chartered Architect (AIA / FIA) | SLIA Parts I, II & III + 2 yrs logbook | All buildings (Residential, Commercial, High-Rise, Civic) without area limits. |
| Architect (ARB Registered) | Recognized foreign or local architectural degree + ARB evaluation | Buildings within approved scope & council guidelines. |
| Architectural Licentiate | Long-standing practical experience (10+ yrs) + Licentiate exam | Residential & low-rise commercial structures within prescribed square-footage limits. |
| Graduate Member (GM SLIA) | Completed SLIA Part II / B.Arch | Assistant design under a Chartered Architect (cannot independently stamp council plans). |
| Student Member | Currently enrolled in an accredited school | Working under supervision as an intern / apprentice. |
Statutory Compliance Reminder
Need a registered architect for your building approval?
Verify your professional's ARB registration number before commissioning drawings for Municipal, UDA, or Pradeshiya Sabha clearance.
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