The process is numbered because the sequence is functional.

Each stage closes a real project decision before the next one begins.

1
Define the project

Site review, brief, constraints, budget context and project priorities.

2
Develop the design

Concept development, spatial testing, materials and coordinated documentation.

3
Prepare the build

Procurement, sequencing, scope coordination and site planning.

4
Deliver and close

Construction review, completion checks, handover and final project closeout.