Understand the site
Gather the survey, access details and available site information. Discuss orientation, levels, services and site constraints with the appropriate professionals.
Define the brief
List the spaces you need now and how that may change. Agree on the scope, specifications and budget assumptions before comparing proposals.
Clarify responsibilities
Confirm who is responsible for drawings, approvals, structural engineering, procurement and site coordination. Put scope, exclusions, payment stages and change procedures in writing.