Services
SLF Structural Assessment
The Sertifikat Laik Fungsi (SLF, Certificate of Building Functionality) is issued by the local government to confirm a building is fit for use. For buildings other than single and row houses it is valid for 5 years and must be renewed. One of its foundations is a technical assessment confirming the structure is safe.
We prepare structural assessments for new and renewed SLF. Inspections are led by our President Director, an SKK-certified Building Functionality Appraiser (Grade A) and certified Building Failure Appraiser.
Scope of work
- Visual inspection of the structure
- Review of available drawings and technical data
- Structural capacity analysis where needed
- Structural assessment report for the SLF file
- Repair or strengthening recommendations
When you need it
- New buildings about to be occupied
- SLF approaching its expiry date
- Buildings that received a notice from the local government
- Buildings changing use or being renovated
President Director
Ir. Annin Hudaya, S.T., M.T., IPU
President Director · Senior Structural & Geotechnical Engineer
- SKK Structural (level 9 / Grade A)
- SKK Geotechnical (level 9 / Grade A)
- SKK Building Functionality Appraiser Expert (level 9 / Grade A)
- Certified Building Failure Appraiser
FAQ
Frequently asked questions
How long is an SLF valid?
For single and row houses, 20 years. For other buildings — offices, hotels, hospitals, malls, factories — 5 years.
Who issues the SLF?
The local government. Consultants such as Stadin prepare the structural assessment as part of the building functionality inspection.
What do I need to prepare?
Building drawings (as-built if available), previous permit data and access to the building for inspection. We will send a complete list once we know the type and size of your building.
Contact
Start a project
Send us your architectural drawings or project brief. Our engineers will get back to you with scope, schedule and fee.