DEMITONResearch / Missed claims statistics / No published New Zealand figure for delay costs (prolongation, standby plant, extended preliminaries) not claimed, as a share of contract value or per day
No published New Zealand figure for delay costs (prolongation, standby plant, extended preliminaries) not claimed, as a share of contract value or per day
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No published New Zealand figure for delay costs (prolongation, standby plant, extended preliminaries) not claimed, as a share of contract value or per day: no defensible figure has been published (Building Disputes Tribunal (Te Taraipiunara Tautohe Hanga Whare), 2023; New Zealand; low confidence).
What it is. None - New Zealand sources describe delay and extension of time disputes, but none gives a delay cost per day, a share of contract value, or the share of delay costs left unclaimed.
Sample. Search terms: New Zealand construction delay costs prolongation claims study; extension of time cost claims New Zealand survey; delay and disruption costs per day New Zealand; standby plant delay claim; preliminaries time-related New Zealand; Transmission Gully delay payments; Te Waihanga delay. A frequency exists: the Tribunal lists extensions of time and delay cost claims among the common issues in adjudication but has not collected statistics on types (printed pp.29-30 of its 2023 report). The Tribunal report is the source of record because it is the New Zealand national source that names delay cost claims as a routine adjudication issue and states it holds no figures for them. Reports of a NZ$190.6 million settlement with the Transmission Gully builder were seen in press only and cover one project.
What it is not. Recorded as none on purpose. A count of days is not a cost: no source gives money per delay day. The Australian per-day preliminaries figure in this corpus is Australian and is not carried across. Not read: the Waka Kotahi final account data, NZS 3910 commentary, and Transmission Gully settlement papers.
Where it came from
- Building Disputes Tribunal (Te Taraipiunara Tautohe Hanga Whare) (2023), Tracking the Trends: A report on statutory adjudication in Aotearoa New Zealand 2003-2023'Costs - How much does it cost?', 'Average costs all claims' table, pp.31-32 · source record
Considered and set aside
- Advisian for the New Zealand Treasury Infrastructure Transactions Unit: Reports time bars on variation and extension of time claims, often 10 working days; no delay cost amounts or counts.
- Russell McVeagh: Perception survey: employer variation and design problems are the commonest delay causes and 20% expect delays and extensions of time to cause disputes. Shares of respondents, no money.
- Atapattu, Massey University (PhD thesis): Delays in design rate 79% on a severity index (fourth of 53); contractual claims such as extensions of time with cost claims appear in only 8 articles of the literature review. Ratings and counts of papers, not costs.
- New Zealand Infrastructure Commission / Te Waihanga: Says delays and scope uncertainty raise costs in general terms; no delay cost per day or unclaimed amounts.
- Office of the Auditor-General: National audit of state highway maintenance contracts; reports on no delay claims.
- Mbachu and Taylor: Full text read (36 usable responses, mostly Wellington): ranks contractual risks by mean significance; no delay cost figure.
- Insurance Council of New Zealand: Insured claims from Cyclone Gabrielle (NZ$890 million at March 2023); it does not separate business interruption or contractors' standby costs.
- Adafin, Rotimi and Wilkinson: Cost plan against tender sum drift of 23.86% across 36 commercial projects supplied by the 64 project managers surveyed; pre-award estimating, not prolongation costs.