CD
Concept Design
Summary:
Represents the basic shape and size of elements
Focused on conveying the overall design intent
Suitable for:
Funding proposals
Concept design cost estimates
SD
Schematic Design
Summary:
Begins translating the project brief into efficient building design
Explores initial design concepts and spatial planning
Suitable for:
Calling tenders for design and construct
Schematic design stage cost estimates
DD
Design Development
Summary:
Finalises interior layout, space dimensions, and material selections
Supports construction documentation and coordination across disciplines
Suitable for:
Detailed design stage cost estimate
Pre-tender construction estimate