The short answer: choose a contractor who is licensed and registered for your type of work, builds only to approved drawings, and never starts before the developer NOC and authority permit are issued. Then keep the design, calculations and approvals with an independent engineer who works for you, not for the builder.
Why the Order Matters: Engineer First, Contractor Second
In Dubai, most changes to a villa, apartment, office or warehouse need a developer NOC and often an authority permit from Dubai Municipality, DDA or Trakhees. Those approvals are based on drawings and stamped structural calculations. If the design comes first, every contractor prices the same approved scope, and you can compare quotes fairly.
| Who | Their job |
|---|---|
| You (the owner) | Decide what you want and choose the contractor. |
| Independent engineer (Structural Solutions) | Drawings, stamped calculations, developer NOC, authority permit, checking the works and sign-off. |
| Contractor | Builds the approved design. |
7 Checks Before You Choose a Contractor
- Trade licence for the right activity. The licence should cover the type of work, for example building, steel structures or fit-out.
- Registered with the right authority. Depending on where your property is, works are permitted by Dubai Municipality, DDA or Trakhees.
- Similar approved projects. Ask for references of works that were approved and signed off, not only photos.
- Builds to approved drawings only. The quote and contract should refer to the approved drawings and calculations.
- No work before approvals. The contractor waits for the developer NOC and authority permit.
- Clear written scope. What is included, what is not, and who handles site cleaning, protection and handover.
- Supports the final inspections. The contractor fixes any comments from the developer or authority inspection.
Red Flags
- “We can start now and get the permit later.”
- “You do not need calculations for this.”
- A price without drawings or a defined scope.
- Offering to change the structure on site without revised approvals.
Works built without approval can block sign-off, delay a sale and may have to be surveyed, approved or removed later. See Sign-off blocked by unapproved works.
Why You Need an Independent Engineer
- The design is checked for safety and approval, not for what is easiest to build.
- One approved scope lets you compare contractors fairly.
- Approvals handled for you: developer NOC, authority permit and, where needed, DCD.
- Works checked against the approved drawings before the final inspections.
- Sign-off and completion certificate at the end.
What the Engineer Checks Before Construction
The structural design and stamped calculations cover the checks every authority expects:
- Loads: dead, live and environmental loads on every element.
- Wind: lateral forces on roofs, pergolas, facades and taller structures.
- Seismic: required for code compliance even in a low seismic zone.
- Soil and foundations: bearing capacity, footing or pile type and settlement.
- Thermal movement: expansion joints for Dubai temperature changes.
- Deflection and vibration: serviceability limits for floors, beams and cantilevers.
- Connections: steel bolts and welds, and concrete detailing.
More: Structural calculations in Dubai, authority approvals and engineer inspection for sign-off.
Frequently Asked Questions
Should my contractor or an independent engineer prepare the drawings and calculations?
An independent engineer. When the designer works for you and not for the builder, the design is checked for safety and approval first, not for what is easiest or cheapest to build.
Can a contractor start before the NOC and permit are issued?
No. Works should only start after the developer NOC and, where needed, the authority permit are issued. A contractor who offers to start first is a red flag.
What should I ask a contractor before signing?
Ask for the trade licence, proof that they are registered for this type of work, references of similar approved projects, a written scope based on the approved drawings, and confirmation that they will build only to those drawings.
Who checks that the works match the approved drawings?
Your independent engineer reviews the works against the approved drawings and stamped calculations before the final inspections, so issues are fixed before sign-off.
Does Structural Solutions build or install?
No. We are an independent engineering consultancy: we design, prepare stamped calculations, get the developer and authority approvals, and check the works. Construction is done by your contractor.