Contractual Mistakes in New Zealand Construction Procurement

What happens when a contractor makes a costly mistake in a construction tender? Can a tender price be changed after acceptance? Learn how New Zealand contract law deals with contractual mistakes in construction procurement. In this CONS6003 Procurement lecture, we explain the Contract and Commercial Law Act 2017, focusing on Sections 24 to 28 and their application to construction tenders, pricing errors, ground conditions, and specification discrepancies. 📚 What You'll Learn: ✅ Contractual Mistakes Act 1977 and the current legislation ✅ Three types of contractual mistakes: unilateral, common and mutual ✅ Section 24 requirements for legal relief ✅ Material mistakes, unequal exchange and contractual risk allocation ✅ Tender pricing errors and their legal consequences ✅ Unexpected ground conditions and specification mistakes ✅ Best practices for tender administrators and quantity surveyors ⚖️ New Zealand Construction Law Cases: Dennis Friedman (Earthmovers) Ltd v Rodney County Council (1988) March Construction Ltd v Christchurch City Council (1995) Mechenex Pacific Services Ltd v TCA Airconditioning (NZ) Ltd (1991) 🏗️ Who Should Watch? This lecture is designed for students studying the New Zealand Diploma in Construction, particularly the Quantity Surveying strand. It is also useful for quantity surveyors, construction estimators, tender administrators, procurement officers, and construction management professionals. 📖 Legislation: Contract and Commercial Law Act 2017, Sections 21 to 32 https://www.legislation.govt.nz/act/p... 💬 Discussion Question: If a contractor submits a tender of $3.2 million but later discovers an estimating mistake worth $620,000, should the principal allow the price to be corrected? Share your thoughts in the comments. 👍 Like this video if you find it helpful. 🔔 Subscribe for more lectures on New Zealand construction law, procurement, quantity surveying, and construction contract administration. 00:00 - Slide 1 - Contractual Mistakes in Construction Procurement 01:39 - Slide 2 - Learning Outcomes 03:09 - Slide 3 - Where the 1977 Act Sits Today 04:48 - Slide 4 - Section 24: Three Ways a Mistake May Arise 06:55 - Slide 5 - The Remaining Section 24 Gates 08:50 - Slide 6 - Limits and Possible Relief 10:58 - Slide 7 - Earthworks Risk: Dennis Friedman 12:56 - Slide 8 - Tender Pricing Error: March Construction 15:07 - Slide 9 - Specification Mismatch: Mechenex 17:06 - Slide 10 - Tender Administrator Response 19:08 - Slide 11 - Worked Example: A Tender Spreadsheet Error 21:31 - Slide 12 - Worked Example: Unexpected Ground Conditions 23:41 - Slide 13 - Group Exercise: Classify the Problem 26:03 - Slide 14 - Discussion Guide 27:56 - Slide 15 - Five Questions for a Procurement File 29:54 - Slide 16 - References and Conclusion Disclaimer: This video is provided for educational purposes and does not constitute legal advice. #ConstructionLawNZ #QuantitySurveying #ConstructionProcurement #ContractualMistakes #Tendering #NZConstruction #ConstructionManagement #ConstructionContracts #ConstructionEducation #CONS6003