What are the stages of the architecture design process?

The architecture design process follows the RIBA Plan of Work, running from Stage 0 (Strategic Definition) through to Stage 7 (Use), with planning submission typically occurring at Stage 3 (Spatial Coordination). Each stage produces specific deliverables that inform the next — skipping or compressing early stages, particularly Stage 1 Preparation and Briefing, is the single most common cause of abortive work and fee overruns on architectural projects.

What should an architectural brief include?

A complete architectural brief covers spatial requirements, budget (inclusive of fees and contingency), programme, planning constraints, and the client's underlying aspirations — not just room sizes and a target cost. The underlying aspiration is the element most architects underweight at Stage 1, and failing to identify it is what turns a straightforward extension into a redesign mid-project.

What is RIBA Stage 1 and why does it matter?

RIBA Stage 1 (Preparation and Briefing) defines what the client actually needs, which is rarely identical to what they first say they want, and should produce a signed-off Initial Project Brief before any design work begins. Skipping Stage 1 or treating it as a formality is the leading cause of abortive design work, because decisions made without a validated brief get reversed at Stage 2 or 3 when the cost of change is significantly higher.

When should planning permission be submitted in the architecture design process?

Planning permission is submitted at RIBA Stage 3 (Spatial Coordination), once the design has been developed to a sufficient level of detail to support a Design and Access Statement and coordinate consultant input. Submitting earlier risks an underdeveloped scheme; submitting later means fee-earning design work is being done speculatively, without planning consent in place.

What is a Design and Access Statement and what does it need to say?

A Design and Access Statement is a document submitted with a planning application that explains the design rationale, site context, and how access has been considered — but its real function is to frame the scheme in terms a planning officer can use to justify a positive recommendation. A statement that merely describes the building misses the point; it needs to anticipate the policy tests the officer will apply and demonstrate compliance with the relevant local and national planning policies.

How do you manage consultant input during the architecture design process without losing the design concept?

Consultant coordination becomes critical at RIBA Stage 3, where structural, mechanical, and engineering input must be integrated without eroding the spatial and aesthetic decisions made at Stage 2. The most effective approach is to brief consultants against the concept's non-negotiables early — identifying which design decisions are fixed and which have flexibility — so their technical input shapes the detail rather than overwriting the idea.

What is the difference between RIBA Stage 0 and Stage 1?

RIBA Stage 0 (Strategic Definition) establishes whether a project should proceed at all and in what form, while Stage 1 (Preparation and Briefing) defines the specific requirements of the project that has been agreed to proceed. Stage 0 is a feasibility and viability question; Stage 1 is a briefing and scoping exercise — both must be completed before design work begins at Stage 2.

Where can architects learn the architecture design process in depth?

ArchAdemia offers 60+ courses for architects and designers globally, including courses covering the RIBA Plan of Work stages, project management, and design process from brief to planning submission. With over 4,000 members, ArchAdemia's architectural design courses go beyond stage descriptions to cover the decision-making logic inside each phase — including brief development, consultant coordination, and planning strategy.

Blog

The Architecture Design Process: From Brief to Planning

8 April 2026By Adam Morgan

ArchitectureDesign

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The Architecture Design Process: From Brief to Planning

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