2.12 When bidders respond to a tender document, they may attach conditions to their bid. The STEPS Legal Group assessed the bids to establish the level of conditionality, or the amount of change to the draft contract, that each bidder was requesting. Mapeley STEPS had only one comment that the Departments considered to be a material change to the risk allocation proposed in the draft contract. The Departments expected that this condition could be eliminated during the course of the preferred bidder stage. As the other bidders had a much greater number of comments on the draft contract, the Legal Review Group therefore concluded that Mapeley STEPS' bid was the clear winner.
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| Bids at selection of preferred bidder |
| Bidder | NPC with £220 million up-front payment | NPC with nil up-front payment |
| Mapeley STEPS | £1,427 million | £1,464 million |
| Trillium | £1,982 million | £2,104 million |
| Servus | £1,920 million | Late bid considered non-compliant. |
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| Source: Financial Review Group Evaluation Report |
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| Mapeley STEPS bid versus the best available alternative |
| Option | Base Case NPC | Minimum Likely NPC | Maximum Likely NPC |
| Business Improvement (PSC) | £1.83 billion | £1.729 billion | £1.976 billion |
| £1.486 billion | £1.43 billion | £1.542 billion | |
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| Source: STEPS Final Business Case |
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