In an off-plan project, any dispute between developer and contractor feeds straight into the handover schedule, and therefore into the buyer compensation the regulations impose for delay. A contractor who stops work over a disputed invoice, or a developer who withholds a payment over a quality disagreement, puts the whole project on the path to delay and perhaps trouble. So preventing disputes is far cheaper than resolving them. This guide explains the common causes of disputes, the consultant's tools for preventing them, the regulatory restriction on modifying drawings, and how the consultant works as a neutral technical reference.
Common Causes of Disputes
- An unclear scope of work.
- Undocumented changes.
- Late payments or disagreement over entitlement.
- Disagreement over quality at acceptance.
- An unrealistic schedule from the start. Read: Causes of project delays and cost overruns.
The Consultant's Tools
| Tool | How it prevents disputes |
|---|---|
| Clear specifications and bills of quantities | Prevent disagreement over what is included |
| A documented change order procedure | Every change with an assessment of its time and cost impact |
| Independent progress measurement | A fair basis for invoices and escrow disbursement documents |
| Stage acceptance records | Settle quality as work proceeds |
| Regular coordination meetings | Reveal problems before they escalate |
How Does Independent Progress Measurement Work?
- A detailed schedule is prepared with weights for each item.
- The consultant measures what has actually been built on site and documents it.
- The progress percentage is calculated and the invoice is linked to it.
- The same percentage goes into project progress reports and is used in disbursement documents.
This way developer and contractor work with one documented figure instead of conflicting estimates. Read: The progress report and contractor payments and Progress reports in Wafi.
The Regulatory Restriction on Modifying Drawings
The developer may not modify approved construction drawings without the approval of the authority and the buyers. So the consultant must prevent any on-site change outside this route, even if the developer and contractor agree on it. Read: Risks of unapproved changes.
Read: The stages of an off-plan project and Supervisor and contractor responsibility.
Early Signs of a Coming Dispute
- Repeated delays in approving invoices.
- Work carried out without a written change order.
- Recurring quality comments that are not closed out.
- No coordination meetings, or no minutes of them.
Frequently Asked Questions
Is the consultant an arbitrator between developer and contractor?
It is a technical reference that documents and measures; ruling on disputes is for the competent authorities.
What is the most important tool?
Independent progress measurement linked to payments.
Can work be added to the contractor's scope during construction?
Yes, by a documented change order assessing its impact, provided it does not affect the approved drawings without the approval of the authority and buyers.
What if the contractor stops work?
The consultant documents the stoppage and its causes, and a stoppage of more than 180 days may make the project troubled. Read: A delayed off-plan project.
Does documentation help in court disputes?
Yes; documented records and reports are the basis of any position. Read: The engineering report in disputes.
How Abak Engineering Consultancy Helps
Abak is an accredited engineering office that coordinates between developer and contractor on Wafi projects, with clear specifications, documented change orders, independent progress measurement and regular coordination meetings that prevent disputes before they start. See our developer-contractor coordination service, or contact us.
Regulatory information is based on the Balady platform and the Ministry of Municipalities and Housing, and procedures may be updated by the competent authority. Last reviewed: October 2026.