But For Baseline Delay Methodology

Hi Joseph - Welcome to Planning Planet

The usual method of As Built But For or Collapsed As Built does not require a baseline programme at all.

I have never heard of a But For Baseline method but that does not mean that it is an invalid method just because no one has written a book about it.

The main issue is that the baseline programme presumably starts and finshes on the contract dates showing the overall duraion and this cannot be reduced by either party.

Even if the contractor's baseline shows completion before the contract end date then he cannot complain if he is delayed - this is known as "Loss of Opportunity".

So any delay claims up to the contract completion date have no validity.

Likewise the employer cannot deduct damages until after the end date is passed.

As a side issue I cannot see how reducing the baseline will assist in increasing the delay entitlement.

I hope this helps

Best regards

Mike Testro

PS. I would be interested to see how this method is put together - please send a private message properly redacted and I will review it for you.