Code : 2021001I
Event Name : QSD PQSL Contract Administration Series 2021 (5) – Valuation of Variations
CPD Code : Formal Events
Speaker : Sr Paul K L Wong

Sr Paul Wong is the Vice-President of the HKIS and the Past Chairman of the HKIS (QSD). Paul has been working in the construction industry for consultants and contractors for over 30 years with extensive experience in construction contract administration. He is the Director & General Manager of Tactful Building Co. Ltd.

The talk will cover the following under the Standard Form of Building Contract:-
1. What are valuation and variation under the Contract?
2. How to deal with discrepancy found in the Contract documents?
3. Architect’s written instructions and oral instructions requiring a Variation
4. Architect’s authority to issue instructions requiring a Variation
5. Contractor’s obligation to comply with and right to object a Variation
6. Valuation rules
7. How to deal with errors in Bills of Quantities & Schedule of Quantities and Rates?
8. Direct loss and/expense due to an Architect’s instruction requiring a Variation
9. Notice of claims for additional payment
10. Payment for variations
11. Determination by Contractor due to Employer’s failure to pay
12. Settlement of disputes in relation to a Variation
Event Date : 2021-04-15
Event Time : 7:00 pm - 8:30 pm
CPD Hour(s) : 0
Divisional PQSL Hour(s) : 1.5
Venue : By online media – ZOOM
Division : QSD
Organizer : Quantity Surveying Division
Fee : HK$120 for members, HK$200 for non-members
Priority : Priority is given to QSD Associate Members and Probationers
Language : Cantonese supplemented by English
Details :

The purpose of the QSD PQSL 2021 is to help QSD probationers and Associate members to enrich the basic knowledge in quantity surveying practice and prepare for the APC examinations. There shall be various series of PQSL events, namely Measurement, Procurement, Standard Form of Building Contract, Contract Administration and Specialization which cover various topics such as Measurement Techniques, Measurement of Building Works and Building Services Installations, Tendering, Report on Tenders, Variation and Post-Contract Cost Control, Payment Valuation and Final Accounts, Contractual Arrangement, Liquidated Damages and Extension of Time, Direct Loss and Expense Claims, Dispute Resolution, Liquidation and etc.

The coming events are:


CPD Code



12 Jan, 2021


QSD PQSL Contract Administration Series 2021 (1) – Post Contract Services of Consultant QS Firms Part 1

Sr K C Tang

2 Feb, 2021


QSD PQSL Contract Administration Series 2021 (2) – Post Contract Services of Consultant QS Firms Part 2

Sr K C Tang

21 Jan, 2021


QSD PQSL Measurement Series 2021 (1) – Principles of Building Measurement Part 1

Sr Dr Calvin Keung

11 Mar, 2021


QSD PQSL Measurement Series 2021 (2) – Principles of Building Measurement Part 2

Sr Dr Calvin Keung

28 Jan, 2021


QSD PQSL Contract Administration Series 2021 (3) – Payment Application and Valuation

Sr Mandy Christina Lam,

Sr Jim Chark

4 Feb, 2021


QSD PQSL Procurement Series 2021 (1) – Key points that you should not miss in tendering

Sr Brenda Mok

26 Feb, 2021


QSD PQSL Contract Administration Series 2021 (4) – Delay and Disruption Claims from the Contractor’s and the Employer’s Perspectives

Sr Eric Y C Ting

23 Mar, 2021


QSD PQSL Estimating Series 2021 (1) – Pre-Contract Estimates and Cost Plans

Sr Thomas Ho

15 Apr, 2021


QSD PQSL Contract Administration Series 2021 (5) –Valuation   of Variations

Sr Paul K L Wong

Remarks :

NOT Eligible for CPD Hours

This event is recognised as the Divisional PQSL event and it accounts for 1.5 PQSL hours. Whether the event could be regarded as the PQSL event for other Division’s APC scheme or not shall be determined by the APC candidate’s respective Division. This event does not account for CPD hours.

The event will be conducted online via ZOOM. Successful registrants will be notified separately via email with the web link in due course to the online event.

Please install the Zoom Application in advance at

  • For Mobile phones, iPads & Android, install the ZOOM Cloud Meetings app from App Store or Play Store.
  • For PC and Mac, download and install the Zoom Client for Meetings.
Payment : HKD