How to Run a Better Building Tender

Most residential tenders return prices that cannot be meaningfully compared, because each builder has quietly priced a different set of assumptions about what is actually included.

What makes a tender non-comparable

• Incomplete documentation — builders fill gaps with different assumptions
• No defined scope of works — each builder decides what to include
• No finishes specification — builders set their own standard for every finish item
• No provisional sum schedule — sums are set at different levels by different builders
• No exclusions list required — builders hide risk in their own way

What a better tender process looks like

• Complete construction documentation — full drawing set, structural engineering, and hydraulic drawings
• Written specification — defines the quality standard for every material and finish
• Defined scope of works — states clearly what is included and excluded
• Provisional sum schedule — sets consistent provisional allowances across all tenderers
• Tender period of at least 4 weeks — less time produces sloppy pricing

The outcome of a structured tender

A structured tender process produces prices that can actually be compared. It reduces the risk of a low tender that recovers through variations. It gives the client a defensible basis for selection. And it gives builders enough information to price confidently — which means more builders will tender and prices will be more competitive.

For projects approaching tender, see our overview of residential tender management — how an independent process works, what it delivers, and when it makes sense to refer tender administration to an independent party.

Architects coordinating this across multiple projects may find it useful to see how this fits into an ongoing working relationship, not just a single tender.