RIBA Stages of Work and Architectural Services

The RIBA Plan of Work is the UK’s definitive framework for managing architectural projects from inception to completion. It divides the process into eight key stages, each with specific tasks, deliverables, and professional services. This structured approach ensures clarity, accountability, and quality throughout the lifecycle of a building project.
 

Stage 0: Strategic Definition

• Establish overarching project goals, including functional requirements, sustainability targets, and budget expectations

• Assess site constraints, planning context, and opportunities for development or reuse

• Develop initial business case and strategic brief to guide feasibility and funding decisions

• Engage stakeholders to understand priorities and potential risks
   

Stage 1: Preparation and Brief

• Confirm client objectives, budget, programme, and procurement strategy

• Undertake feasibility studies, site appraisals, and risk assessments

• Develop the initial project brief, including spatial requirements and performance criteria

• Identify statutory requirements, planning constraints, and specialist consultants needed

• Prepare a project programme outlining key milestones and decision points
   

Stage 2: Concept Design

• Prepare concept design proposals including architectural layout, massing, and orientation

• Outline structural and building services strategies, considering energy efficiency and environmental impact

• Explore material options, access strategies, and initial compliance with planning policies

• Review and update cost plan and risk register

• Present design options to client and stakeholders for feedback and approval
   

Stage 3: Spatial Coordination

• Develop coordinated design integrating architectural, structural, mechanical, electrical, and public health systems

• Refine layouts to meet regulatory requirements and client expectations

• Incorporate specialist subcontractor input and product specifications

• Prepare and submit planning application with supporting documentation

• Update cost plan and procurement strategy based on coordinated design
   

Stage 4 & 4A: Technical Design

• Produce detailed technical drawings, schedules, and specifications for construction

• Coordinate input from all consultants and suppliers to ensure buildability and compliance

• Finalise Building Regulations submission and discharge planning conditions

• Prepare tender documentation including scope of works, schedules, and contract particulars

• Support client in tender evaluation and contractor selection
   

Stage 5: Manufacturing and Construction

• Administer building contract, monitor progress, and manage site queries

• Conduct regular site inspections to ensure quality and compliance with design intent

• Manage change control procedures and issue instructions as required

• Coordinate with contractor and suppliers to resolve technical issues

• Review interim valuations and certify payments
   

Stage 6: Handover

• Oversee commissioning, snagging, and final inspections

• Facilitate handover of building including operation manuals, warranties, and as-built drawings

• Review project performance against brief and client satisfaction

• Support client with occupancy planning and facilities management setup

• Close out contractual obligations and final account
   

Stage 7: Use

• Conduct post-occupancy evaluation to assess building performance and user experience

• Monitor energy use, maintenance issues, and operational efficiency

• Provide ongoing support for adaptations, upgrades, or future phases

• Capture lessons learned to inform future projects and improve practice standards