Tag: extension of time

Apr 25

Variation Claims in FIDIC Contracts: Pricing, Time & Procedure | E-Basel

By Basel Al Najjar in Project Management
April 25, 2026

FIDIC Variation Claims in FIDIC Contracts: Pricing, Time and Procedure Variations are a major source of disputes in construction projects. Understand how variations are priced, when you are entitled to time extensions and prolongation costs, and how to follow FIDIC procedures to protect your claims. 10 min read · Updated 25/04/2026 By Basel Al Najjar …

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Permanent link to this article: https://www.e-basel.com/project-management/variation-claims-in-fidic-contracts/

Apr 09

Lump Sum Contract VS FIDIC 99 Contract

By Basel Al Najjar in FIDIC
April 9, 2023

Lump Sum Contract VS FIDIC 99 Contract Lump Sum Lump Sum Typically used with Design-Bid-Build method of project procurement. a. A lump sum contract, sometimes called stipulated sum, is the most basic form of agreement between a supplier of services and a customer. The supplier agrees to provide specified services for a specific price. The …

bid proposal, claims, completion date, construction, construction contract, Construction Contracts, contract, contractor, deliverables, design responsibility, disputes, employer, engineer, engineering contracts, extension of time, fidic, fixed price, Force majeure, international contracts, Liquidated damages, lump, milestones, no change order, no cost escalation, no variation, predetermined price, project cost, Risk Management, scope of work, sum, Tendering, time for completion, variations

Permanent link to this article: https://www.e-basel.com/fidic/lump-sum-contract-vs-fidic-99-contract/

About the Expert

Basel Al Najjar

Civil Engineering Consultant · Accredited Expert Witness
Arbitrator · Senior Project Manager

Specialising in construction claims, FIDIC contracts, and dispute resolution across the UAE. Acting as Arbitrator, Tribunal Chairman, and Independent Expert in high-value, multi-party disputes.

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⏱ FIDIC Notice Deadline Calculator

Select your contract edition and book, choose the relevant clause, then enter the date you became aware of the triggering event. All applicable notice deadlines will be calculated instantly.

FIDIC Edition

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Trigger Event / Clause

Date of Awareness / Event Occurrence

The date you became aware, or should have become aware, of the event giving rise to the claim or notice obligation.

Key Notice Periods at a Glance

1999 editions — Cl. 20.1 Notice: 28 days · Detailed Claim: 42 days
2017 editions — Cl. 20.2 Notice: 28 days · Detailed Claim: 84 days
Unforeseeable Conditions (Cl. 4.12): Notice as soon as practicable
Defects Notification Period: 365 days from Taking-Over Certificate

Deadline Summary

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Tag: extension of time

Variation Claims in FIDIC Contracts: Pricing, Time & Procedure | E-Basel

Lump Sum Contract VS FIDIC 99 Contract

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