Design-Build Team Selected on Low Price, Now Failing on Quality
A transit agency procured a $120M bus maintenance facility using design-build with a low-bid award. The RFP included a 400-page technical requirements package but no quality weighting, and the award went to the lowest of five proposers at 12% below the next bid. Six months into construction, the owner's construction manager reports: the structural steel shop drawings show a roof framing system that meets the letter of the spec but has far less redundancy than the owner expected; the building envelope details show a sealant system the owner's maintenance staff consider unmaintainable; and the design-builder has submitted 22 requests for information per month, mostly about ambiguous spec sections. The design-builder says it priced exactly what the RFP asked for.
1. Identify the root causes of this outcome. Distinguish procurement-design errors from contractor performance issues.
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Most of this is an owner-side procurement design failure, not contractor misconduct.
- Low-bid award with no quality factor: the agency told the market that price was the only differentiator. Rational bidders then minimized cost, which is exactly what the winning bidder did. The 12% gap is a signal that the winner stripped scope and assumed the spec would carry the risk.
- A 400-page prescriptive package with gaps: volume is not clarity. The 22 RFIs per month indicate internal contradictions or silence in the requirements. A well-drafted performance spec would have stated the redundancy and maintainability outcomes and let the design-builder propose means, with the owner evaluating the proposal against those outcomes.
- Unstated expectations: "more redundancy" and "maintainable envelope" were in the owner's head, not in the RFP. If the spec only required code-minimum framing, the design-builder is compliant. The owner cannot retroactively add criteria.
- Contractor performance issues: if any RFIs concern matters the spec clearly resolved, or if the design-builder is using RFIs to generate change orders, that is a performance problem. The CM should audit a sample of RFIs to see which category they fall into.
The honest split is roughly 80% procurement design and 20% possible contractor opportunism, pending the RFI audit.
2. The owner wants to direct the design-builder to upgrade the roof framing and the envelope at the design-builder's cost. Evaluate that option and give a better path.
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Directing an upgrade at the design-builder's cost is likely to fail. If the design meets the contract documents, a unilateral directive is a change, and the design-builder is entitled to be paid and to time. The owner would be trading a cost dispute for a claim plus delay on a project already carrying schedule risk. The only defensible version is a narrow one: if the CM's review shows the design violates a specific code or spec provision, the owner can require correction at the design-builder's cost. That requires citing the exact provision, not a general expectation.
A better path has three parts:
- Quantify the real exposure. Get independent estimates of the lifecycle cost of the lower-redundancy roof and the unmaintainable sealant. If the delta over 30 years is small, absorb it and move on.
- Negotiate a targeted change. Offer to pay for the framing upgrade in exchange for a waiver of the design-builder's schedule claims and a firm envelope warranty. Bundle the items so the owner gets value, not just cost.
- Fix the process for next time. For future procurements, use best-value scoring with a quality weight of at least 30%, require a maintainability review by the owner's O&M staff during proposal evaluation, and convert prescriptive sections to performance requirements with defined acceptance criteria.