When looking for someone to design your project or obtain its permit, you will see "engineering office", "engineering consultancy" and "consultant". Are they the same thing? The short answer: the terms are often used interchangeably, but the real difference lies in the scope of service and responsibility, not the name. This article explains the difference between an engineering office and an engineering consultancy in practice, when you need each, and how to choose the right one without paying for services you do not need or discovering later that you contracted for less than your project requires.
The Engineering Office
In common usage, an engineering office is an accredited firm offering design, drawings and permits through the Balady platform. In the building permit journey, the design office accepts the owner's authorisation, prepares the architectural, structural and MEP designs, submits the application and addresses the technical audit and municipality comments. Read: The building permit journey on Balady.
The Consultancy
Its role usually extends beyond design: technical studies (soil, traffic, engineering feasibility), drawing reviews, construction supervision, project management, and technical opinions on large and complex projects, sometimes in disputes. A consultant stays with the project from the idea to handover, not only until the permit is issued.
Quick Comparison
| Item | Engineering office (design and permits) | Consultancy |
|---|---|---|
| Focus | Designs, drawings and permits | Design, studies, supervision and project management |
| Typical project size | Villas, apartment buildings and mid-sized projects | Mid-sized, large, government and industrial projects |
| Responsibility | Design conformity with the code and requirements | Extends to construction quality, cost and schedule |
| Length of involvement | Usually until the permit is issued | The whole project cycle until handover |
| Outputs | Drawings and a permit | Studies, reports, acceptance records and progress reports |
The Three Roles in the Building Journey
Whatever the name, there are three statutory roles in a building project on Balady:
- The design office: prepares the designs and obtains the permit.
- The supervising office: verifies that construction matches the drawings and submits the construction notices, on which the occupancy certificate depends for new permits. Read: Periodic-visit supervision.
- The building contractor: carries out the work.
The designer and supervisor can be the same office, which makes coordination easier and reduces conflicts between design and construction.
When Do You Need Each?
- For a villa or apartment building permit: an accredited design office. See our building permit service.
- For construction supervision: a supervising office. See our supervision service.
- For a large multi-party project: a consultant handling studies, supervision and project management.
- For industrial city or off-plan projects: a consultant experienced in MODON or Wafi requirements. Read: The engineering consultant in Wafi.
How to Choose
- Check the office's accreditation and classification and that it appears on Balady.
- Review its past projects similar to yours in size and type.
- Ask for an offer that sets out the scope precisely: what is included (design disciplines, number of revisions, supervision) and what is excluded. Read: Contracting an engineering office on Balady.
- Ask how audit and municipality comments are handled and who bears the cost of rework.
- Compare offers on scope, not just price; the cheapest offer may exclude a discipline or supervision.
Common Mistakes When Choosing
- Contracting for design only, then rushing to find a supervisor at the contracting stage on Balady.
- Assuming the design office will supervise automatically without it being in the contract.
- Choosing an office with no experience in the project type (industrial, commercial, unit sorting).
- Not specifying how many design revisions are included in the fee.
Frequently Asked Questions
Can one office do both roles?
Yes, many offices combine design, supervision and consulting under one roof.
Are office fees fixed?
No, Balady notes they are agreed between the office and the beneficiary.
Is supervision mandatory?
The supervising office is part of the contracting stage in the building permit journey on Balady.
Do I need a consultant for a villa?
An engineering office combining design and supervision is usually enough, unless the project is complex or you cannot follow it closely.
How do I check an office's accreditation?
By seeing it listed as a classified office on Balady when selecting it in the application.
Related Guides
- Building permits in Saudi Arabia: the complete guide
- Supervisor and contractor: limits of responsibility
- Comparing contractor bids
How Abak Engineering Consultancy Helps
Abak is an accredited engineering office in Riyadh combining design, permits, supervision, project management and surveying, so you deal with one firm from the idea to handover. Learn about our building permit service, or contact us to review your case.
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.