Few building contracts of any size reach completion without a range of often substantial claims being made. But many claims are ill-founded, often because the basic principles are misunderstood.

This highly regarded book examines the legal basis of claims for additional payment, and what can and cannot be allowed by the consultants under the main forms of building contract. It also includes chapters on the preparation and negotiation of claims, and the quantity surveyor's role.

This third edition covers all the main JCT contracts, including the latest amendments, and uses JCT 80 as the basis to highlight important differences in the other forms. It also covers the subcontract forms NSC/C, NAM/C and DOM/1, together with the ACA Form and its subcontract, and GC/Works/1 Edition 3.

The subjects of liquidated damages, global claims, causation and concurrency have been given greater importance for this edition, recent legislation has been incorporated and the number of case references has almost doubled.

This third edition will continue to be essential reading for all architects and quantity surveyors. It will also prove invaluable to contractors by showing them how to present and justify valid claims.