Construction Contractor License Number, is the official number that ensures natural or legal persons undertaking construction work are registered and authorized by the Ministry of Environment, Urbanization, and Climate Change. Without this number, it is not possible to be registered as a contractor on a building permit.
From the perspective of property owners, this document is the most basic means of verifying whether a company is “truly a contractor.” In areas with high volumes of villa construction, such as Çeşme and Alaçatı, it is not uncommon to encounter situations where the teams undertaking the work are not registered contractors.
What Is the Purpose of a Certificate of Authorization?
- License registration: This number is entered in the contractor's section of the building permit
- Classification: Contractors are categorized based on the nature of the work they can undertake; not every group can take on projects of every scale
- Record tracking: Projects undertaken, completed structures, and any negative records, if any, are tracked under this number
- Sanction: In the event of a violation of regulations, restrictions on or revocation of the document may be considered
The existence of a criminal record is an important safeguard for the building owner: it allows the contractor’s history to be traced.
How Do You Search?
Verification can be done in two ways:
- Through the Ministry’s official online system: You can search by number or company name on the ministry’s portal where construction contractor records are maintained. Since the addresses and interfaces of the search screens may change over time, it is best to access the Ministry of Environment, Urbanization, and Climate Change’s official website for the most up-to-date link.
- Through the municipality's urban planning department: During the permitting process, the contractor’s registration and classification are already verified by the municipality; the building owner can confirm this information with the Department of Urban Planning.
Points to check during the review: whether the document is valid, whether the name exactly matches the legal entity specified in the contract, and whether the group is suitable for the project.
Pre-Contract Checklist
A certificate of authorization alone is not sufficient assurance. The following items must be verified together:
- Title match: Is the legal entity signing the contract the same as the holder of the authorization certificate? Entering into a contract through a different company creates uncertainty regarding who is liable.
- Signing authority: A signature circular showing that the person signing the contract is authorized to represent the company
- Tax and commercial registry records: Confirmation that it is an active business
- Reference projects: On-site inspection of completed projects and, if possible, consultation with previous property owners
- Construction foreman: The identity and qualifications of the site manager to be assigned to the project
- Occupational safety organization: How to Meet Occupational Health and Safety Obligations at a Construction Site
- Insurance: Scope of building and third-party liability insurance, if any
Common High-Risk Situations
- Use of the name of a company that holds a certificate: When another team is actually carrying out the work, it creates a situation where there is no one to turn to when problems arise
- Entering into a contract in a person's name: Working with an individual contact rather than an organizational structure makes it more difficult to track warranties and liabilities
- The group is not suitable for the project: The scope of the work undertaken exceeds the contractor’s authority
- Invoice and payment discrepancies: Payment made to an account other than that of the legal entity specified in the contract
Frequently Asked Questions
Is it possible to work with someone who doesn't have a license?
This number is required to be registered as a contractor for projects that require a building permit. An agreement with an unlicensed individual can lead to serious problems during the permitting process and later during the occupancy phase.
Can a building owner register as a contractor in their own name?
The regulations include provisions that allow a building owner to register their building within a limited scope. However, in this case, all liability belonging to the contractor is transferred to the building owner. For current conditions and compliance requirements, information should be obtained from the municipality’s urban planning department.
What should you do if there is a negative entry on your credit report?
The nature of the record should be investigated, and an explanation should be requested from the company. A single record may not be decisive on its own; however, recurring negative records serve as a warning that should be taken seriously before entering into a contract.
The Imerek Construction Approach
We transparently share our corporate identity, our contractual counterpart, and our construction site organization from the outset of every project. For other items that need to be reviewed during the contracting process, Our article on the contract of commitment You can take a look.


