A well-managed interior design project moves through clear decisions: define the brief, understand the space, agree a concept, develop the information needed, coordinate implementation and record the handover. Not every project needs the same level of detail, but each benefits from knowing who decides what and when.
1. Brief and feasibility
Describe the users, activities, priorities, constraints, timing and budget range. Identify what is fixed, what can change and what other approvals are required. A designer may visit to measure and document the existing space. If the project involves a leased or shared building, confirm access and approval requirements early.
2. Concept and layout
The designer develops directions for how the space can function and feel. Layouts, mood references, initial material ideas and sketches help the client respond to the direction before detailed selections are made. Keep feedback tied to the brief: explain what supports the project and what does not.
3. Design development
Once a direction is approved, the team can refine furniture, finishes, lighting, storage, joinery and other decisions. Depending on the project, the package may include plans, elevations, schedules, specifications, sample boards or visualisations. Ask what level of detail is suitable for pricing and construction and who reviews technical information.
4. Procurement and site work
Before ordering or installing, confirm approved quantities, product specifications, lead times, delivery access and responsibility for checking items on arrival. Changes should be written down with their cost and timing implications before approval. The designer’s role during this stage depends on the agreed service; site supervision and purchasing are not automatic.
5. Completion and handover
Walk through the completed areas against the agreed scope. Record outstanding items, relevant product details, care instructions, warranties supplied by vendors and any agreed follow-up. Keep the final drawings and approval record accessible.
Keep the process useful
Set decision dates, name the person authorised to approve changes and keep one current schedule of selections. Read our practical guides to writing a brief and checking a proposal. To find a professional whose process fits, explore the IDAK directory.
