Architect vs Architectural Designer: Which Do You Need?
The word 'architect' is legally protected — only RIBA/ARB registered professionals can use it. But architectural designers and technologists produce the same planning and Building Regulations drawings for less. This guide helps you choose.
The details
Qualifications and regulation
'Architect' requires 7 years of training and registration with the ARB (Architects Registration Board). Architectural technologists hold a CIAT qualification (typically 3–4 years). Architectural designers may hold various qualifications. All three can prepare planning drawings and Building Regulations drawings.
When to hire an architect
An architect adds most value when: you want a bespoke design concept (not just technical drawings), the project is complex or unusual, you need someone to manage the build, or the project involves a listed building or sensitive site where design quality is paramount.
When a designer or technologist is sufficient
For straightforward extensions, loft conversions, and open-plan conversions, an architectural technologist or fixed-price design service delivers the same technical output — planning drawings, Building Regs details, structural coordination — at a lower cost. Most homeowners do not need the full architectural vision.
| Factor | Architect | Architectural Designer/Technologist |
|---|---|---|
| Qualification | 7 years + ARB registration | 3–4 years + CIAT or equivalent |
| Fee (typical extension) | 8–15% of build cost | 5–10% or fixed fee |
| Fee (£60k build) | £4,800–£9,000 | £2,000–£5,000 |
| Design concept | Full bespoke vision | Practical, functional design |
| Planning drawings | Yes | Yes |
| Building Regs drawings | Yes | Yes |
| Site management | Often included | Usually separate |
| Best for | Complex or bespoke projects | Straightforward extensions |
Our verdict
For most extension projects, an architectural technologist or fixed-price service is the best value. Hire an architect when design vision matters more than cost efficiency — listed buildings, complex sites, or ambitious bespoke designs.
Common questions
Frequently asked questions
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