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. It is based, among other things, on a technical assessment confirming that the structure is safe.
We prepare structural assessments for new SLFs and SLF renewals. 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
- An 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 your project
Send us your architectural drawings or project brief. Our engineers will get back to you with scope, schedule and fee.