DBFM is an integrated construction contract that combines Design, Build, Finance and Maintain into a single award to one consortium. DBFMO adds Operate, covering the day-to-day operation of the asset as well. It is a form of public-private partnership (PPP) used mainly for large infrastructure and public-building projects.
How does a DBFM contract work?
The public client (for example a roads agency or a state real-estate body) signs a single contract with a consortium for a long term, often 20 to 30 years. The consortium pre-finances the works and is paid back periodically through an availability payment as long as the asset performs as agreed. Underperformance reduces the payment.
This creates incentives for:
- Life-cycle thinking — poorer build quality means higher maintenance and lower profit
- Risk transfer — risks sit with the party best able to manage them
- Innovation — more efficient solutions increase the margin
Difference from D&C, DB and DBM
- D&C / DB — Design & Construct or Design & Build: design and execution only
- DBM — Design, Build, Maintain: also includes maintenance after delivery
- DBFM — DBM plus financing by the contractor
- DBFMO — DBFM plus operation (catering, reception, etc.)
Application
DBFM(O) is well known from highway and tunnel projects, courthouses and correctional facilities. It is considered when life-cycle costs are significant and clear performance specifications can be written.
Points to watch
- High transaction costs — complex contracts with intensive preparation
- Long duration — late scope changes are expensive
- Clear requirements — the quality of the performance brief decides the final result
Related terms
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