Substantial Completion
Substantial completion is the stage when the work (or a designated portion) is sufficiently complete so the owner can occupy or use it for its intended purpose. Government construction clauses and AIA-based contract language both describe substantial completion as an "intended use" milestone rather than a "perfect completion" milestone.
- Where it applies
- General / Federal
- When it comes up
- Construction milestones; turnover; closeout
- Property types
- All
In practice
Substantial completion definitions should be aligned across construction contracts, leases, and financing requirements to avoid trigger mismatches (rent commencement, milestone payments, liquidated damages).
Related terms
Construction Terminology
- Change Order
- Construction Management at Risk (CMAR / CM@Risk)
- Design-Bid-Build
- Design-Build
- Guaranteed Maximum Price (GMP)
- Hard Costs
- Lump Sum
- Punch List
- Shop Drawings
- Soft Costs
General information, not legal, tax or financial advice.